/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:01:54,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:01:54,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:01:54,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:01:54,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:01:54,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:01:54,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:01:54,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:01:54,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:01:54,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:01:54,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:01:54,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:01:54,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:01:54,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:01:54,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:01:54,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:01:54,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:01:54,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:01:54,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:01:54,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:01:54,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:01:54,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:01:54,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:01:54,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:01:54,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:01:54,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:01:54,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:01:54,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:01:54,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:01:54,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:01:54,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:01:54,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:01:54,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:01:54,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:01:54,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:01:54,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:01:54,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:01:54,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:01:54,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:01:54,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:01:54,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:01:54,676 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 [2020-09-25 08:01:54,713 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:01:54,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:01:54,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:01:54,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:01:54,715 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:01:54,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:01:54,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:01:54,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:01:54,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:01:54,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:01:54,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:01:54,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:01:54,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:01:54,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:01:54,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:01:54,718 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:01:54,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:01:54,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:01:54,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:01:54,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:01:54,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:01:54,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:01:54,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:01:54,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:01:54,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:01:54,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:01:54,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:01:54,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:01:54,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:01:54,720 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 08:01:55,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:01:55,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:01:55,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:01:55,222 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:01:55,222 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:01:55,224 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-09-25 08:01:55,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eebf9145f/a8bca8b13e06403eaf13978242c991eb/FLAG9d8eaf029 [2020-09-25 08:01:55,860 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:01:55,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-09-25 08:01:55,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eebf9145f/a8bca8b13e06403eaf13978242c991eb/FLAG9d8eaf029 [2020-09-25 08:01:56,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eebf9145f/a8bca8b13e06403eaf13978242c991eb [2020-09-25 08:01:56,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:01:56,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:01:56,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:01:56,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:01:56,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:01:56,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:01:56" (1/1) ... [2020-09-25 08:01:56,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d064956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56, skipping insertion in model container [2020-09-25 08:01:56,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:01:56" (1/1) ... [2020-09-25 08:01:56,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:01:56,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:01:56,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:01:56,481 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:01:56,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:01:56,528 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:01:56,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56 WrapperNode [2020-09-25 08:01:56,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:01:56,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:01:56,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:01:56,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:01:56,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56" (1/1) ... [2020-09-25 08:01:56,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56" (1/1) ... [2020-09-25 08:01:56,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56" (1/1) ... [2020-09-25 08:01:56,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56" (1/1) ... [2020-09-25 08:01:56,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56" (1/1) ... [2020-09-25 08:01:56,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56" (1/1) ... [2020-09-25 08:01:56,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56" (1/1) ... [2020-09-25 08:01:56,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:01:56,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:01:56,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:01:56,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:01:56,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56" (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 [2020-09-25 08:01:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:01:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:01:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 08:01:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 08:01:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:01:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:01:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 08:01:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 08:01:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 08:01:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:01:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:01:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:01:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:01:57,109 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:01:57,110 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 08:01:57,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:01:57 BoogieIcfgContainer [2020-09-25 08:01:57,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:01:57,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:01:57,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:01:57,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:01:57,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:01:56" (1/3) ... [2020-09-25 08:01:57,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3466aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:01:57, skipping insertion in model container [2020-09-25 08:01:57,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:56" (2/3) ... [2020-09-25 08:01:57,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3466aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:01:57, skipping insertion in model container [2020-09-25 08:01:57,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:01:57" (3/3) ... [2020-09-25 08:01:57,132 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2020-09-25 08:01:57,148 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:01:57,159 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:01:57,205 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:01:57,250 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:01:57,251 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:01:57,251 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:01:57,251 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:01:57,251 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:01:57,251 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:01:57,251 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:01:57,251 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:01:57,279 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-25 08:01:57,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 08:01:57,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:01:57,288 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] [2020-09-25 08:01:57,289 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:01:57,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:01:57,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1441743938, now seen corresponding path program 1 times [2020-09-25 08:01:57,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:01:57,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313037726] [2020-09-25 08:01:57,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:01:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:57,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:57,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:01:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-25 08:01:57,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:57,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:01:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 08:01:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:01:57,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:01:57,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:01:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:57,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:57,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:57,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:01:57,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:57,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:01:57,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:57,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:57,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:01:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:01:57,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:01:57,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313037726] [2020-09-25 08:01:57,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:01:57,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:01:57,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773311718] [2020-09-25 08:01:57,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:01:57,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:01:57,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:01:57,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:01:57,801 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2020-09-25 08:01:58,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:01:58,036 INFO L93 Difference]: Finished difference Result 143 states and 210 transitions. [2020-09-25 08:01:58,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:01:58,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-09-25 08:01:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:01:58,053 INFO L225 Difference]: With dead ends: 143 [2020-09-25 08:01:58,054 INFO L226 Difference]: Without dead ends: 81 [2020-09-25 08:01:58,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:01:58,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-25 08:01:58,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2020-09-25 08:01:58,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 08:01:58,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2020-09-25 08:01:58,129 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 91 transitions. Word has length 25 [2020-09-25 08:01:58,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:01:58,130 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 91 transitions. [2020-09-25 08:01:58,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:01:58,130 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 91 transitions. [2020-09-25 08:01:58,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 08:01:58,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:01:58,133 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] [2020-09-25 08:01:58,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:01:58,134 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:01:58,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:01:58,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1406858677, now seen corresponding path program 1 times [2020-09-25 08:01:58,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:01:58,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238332811] [2020-09-25 08:01:58,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:01:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:58,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:58,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:58,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:58,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:01:58,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:01:58,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 08:01:58,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:58,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:01:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 08:01:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:01:58,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:01:58,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:01:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:58,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:58,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:58,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:01:58,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:58,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:01:58,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:58,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:58,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:01:58,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:58,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:01:58,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:01:58,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:01:58,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238332811] [2020-09-25 08:01:58,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:01:58,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:01:58,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795650285] [2020-09-25 08:01:58,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:01:58,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:01:58,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:01:58,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:01:58,352 INFO L87 Difference]: Start difference. First operand 73 states and 91 transitions. Second operand 5 states. [2020-09-25 08:01:58,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:01:58,530 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2020-09-25 08:01:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:01:58,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-09-25 08:01:58,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:01:58,552 INFO L225 Difference]: With dead ends: 85 [2020-09-25 08:01:58,552 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 08:01:58,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:01:58,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 08:01:58,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-09-25 08:01:58,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 08:01:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions. [2020-09-25 08:01:58,585 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 25 [2020-09-25 08:01:58,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:01:58,586 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 97 transitions. [2020-09-25 08:01:58,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:01:58,586 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2020-09-25 08:01:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 08:01:58,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:01:58,591 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:01:58,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:01:58,592 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:01:58,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:01:58,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1771333938, now seen corresponding path program 1 times [2020-09-25 08:01:58,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:01:58,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123516733] [2020-09-25 08:01:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:01:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:58,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:58,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:58,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 08:01:58,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:58,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 08:01:58,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:58,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:58,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:01:58,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:01:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 08:01:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:58,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:01:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:58,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:58,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:58,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:01:58,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:58,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:01:58,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:58,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:58,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:01:58,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:58,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:01:58,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:58,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:01:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:58,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:58,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:58,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:01:58,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:58,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:01:58,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:58,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:58,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:01:58,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:58,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:01:58,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:58,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:01:58,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123516733] [2020-09-25 08:01:58,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:01:58,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:01:58,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457149178] [2020-09-25 08:01:58,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:01:58,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:01:58,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:01:58,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:01:58,880 INFO L87 Difference]: Start difference. First operand 81 states and 97 transitions. Second operand 5 states. [2020-09-25 08:01:59,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:01:59,064 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2020-09-25 08:01:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:01:59,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-25 08:01:59,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:01:59,067 INFO L225 Difference]: With dead ends: 116 [2020-09-25 08:01:59,068 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 08:01:59,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:01:59,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 08:01:59,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2020-09-25 08:01:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 08:01:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2020-09-25 08:01:59,108 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 30 [2020-09-25 08:01:59,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:01:59,108 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2020-09-25 08:01:59,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:01:59,108 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2020-09-25 08:01:59,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 08:01:59,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:01:59,112 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:01:59,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:01:59,112 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:01:59,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:01:59,113 INFO L82 PathProgramCache]: Analyzing trace with hash 456630219, now seen corresponding path program 1 times [2020-09-25 08:01:59,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:01:59,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104809249] [2020-09-25 08:01:59,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:01:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 08:01:59,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-25 08:01:59,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:01:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 08:01:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 08:01:59,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:01:59,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:01:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:01:59,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:01:59,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:01:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:01:59,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 08:01:59,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:01:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:01:59,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 08:01:59,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:01:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:59,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:01:59,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:59,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:01:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:01:59,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:01:59,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:01:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:01:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 08:01:59,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104809249] [2020-09-25 08:01:59,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:01:59,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:01:59,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224852780] [2020-09-25 08:01:59,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:01:59,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:01:59,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:01:59,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:01:59,461 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand 6 states. [2020-09-25 08:01:59,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:01:59,643 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2020-09-25 08:01:59,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:01:59,644 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 08:01:59,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:01:59,646 INFO L225 Difference]: With dead ends: 106 [2020-09-25 08:01:59,646 INFO L226 Difference]: Without dead ends: 104 [2020-09-25 08:01:59,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:01:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-25 08:01:59,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-09-25 08:01:59,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-25 08:01:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2020-09-25 08:01:59,664 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 35 [2020-09-25 08:01:59,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:01:59,665 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2020-09-25 08:01:59,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:01:59,665 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-09-25 08:01:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 08:01:59,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:01:59,667 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:01:59,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:01:59,668 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:01:59,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:01:59,669 INFO L82 PathProgramCache]: Analyzing trace with hash 364478305, now seen corresponding path program 1 times [2020-09-25 08:01:59,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:01:59,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571933696] [2020-09-25 08:01:59,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:01:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 08:01:59,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 08:01:59,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:01:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 08:01:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:01:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:01:59,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:01:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:01:59,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:01:59,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:01:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:59,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:01:59,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:59,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:01:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:01:59,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:01:59,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:01:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:01:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:59,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:01:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:01:59,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:01:59,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:01:59,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:59,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:01:59,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:59,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 08:01:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:01:59,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:01:59,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:01:59,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:01:59,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 08:01:59,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571933696] [2020-09-25 08:01:59,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:01:59,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:01:59,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045632263] [2020-09-25 08:01:59,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:01:59,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:01:59,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:01:59,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:01:59,894 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand 5 states. [2020-09-25 08:02:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:00,020 INFO L93 Difference]: Finished difference Result 135 states and 172 transitions. [2020-09-25 08:02:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:02:00,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-09-25 08:02:00,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:00,023 INFO L225 Difference]: With dead ends: 135 [2020-09-25 08:02:00,023 INFO L226 Difference]: Without dead ends: 133 [2020-09-25 08:02:00,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:02:00,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-25 08:02:00,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2020-09-25 08:02:00,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-25 08:02:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 162 transitions. [2020-09-25 08:02:00,043 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 162 transitions. Word has length 40 [2020-09-25 08:02:00,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:00,044 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 162 transitions. [2020-09-25 08:02:00,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:02:00,044 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-09-25 08:02:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 08:02:00,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:00,046 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:00,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:02:00,047 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:00,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:00,047 INFO L82 PathProgramCache]: Analyzing trace with hash 914533499, now seen corresponding path program 1 times [2020-09-25 08:02:00,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:00,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844114305] [2020-09-25 08:02:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:00,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:00,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:00,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:00,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:00,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:01,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 08:02:01,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:02:01,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1633 [2020-09-25 08:02:01,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:01,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:02:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:02:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 08:02:01,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:01,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:01,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:01,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:01,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:01,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:01,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:01,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:01,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:01,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:01,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:01,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:01,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:01,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:01,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:01,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:01,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:01,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:01,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:01,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:01,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:01,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:01,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:01,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:01,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:02:01,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:01,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:01,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 08:02:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:01,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:01,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:01,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:01,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:01,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:01,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:01,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:01,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 08:02:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:01,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:01,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:01,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:01,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:01,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:01,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:01,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:01,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:01,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:01,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:01,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:01,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:01,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:01,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:01,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:02:01,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:01,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:01,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:01,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:02:01,880 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 08:02:01,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844114305] [2020-09-25 08:02:01,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:01,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:01,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104200857] [2020-09-25 08:02:01,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:01,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:01,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:01,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:01,884 INFO L87 Difference]: Start difference. First operand 125 states and 162 transitions. Second operand 7 states. [2020-09-25 08:02:02,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:02,195 INFO L93 Difference]: Finished difference Result 192 states and 260 transitions. [2020-09-25 08:02:02,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:02:02,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-25 08:02:02,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:02,200 INFO L225 Difference]: With dead ends: 192 [2020-09-25 08:02:02,200 INFO L226 Difference]: Without dead ends: 190 [2020-09-25 08:02:02,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:02:02,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-25 08:02:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 167. [2020-09-25 08:02:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 08:02:02,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 227 transitions. [2020-09-25 08:02:02,249 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 227 transitions. Word has length 58 [2020-09-25 08:02:02,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:02,249 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 227 transitions. [2020-09-25 08:02:02,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:02,249 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 227 transitions. [2020-09-25 08:02:02,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 08:02:02,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:02,259 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:02,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:02:02,259 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:02,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:02,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1807369608, now seen corresponding path program 1 times [2020-09-25 08:02:02,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:02,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505806760] [2020-09-25 08:02:02,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:02:02,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:02,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-25 08:02:02,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:02:02,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 08:02:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 08:02:02,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:02,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:02,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:02,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:02,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:02,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:02,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:02,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:02:02,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:02,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:02,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:02,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:02,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:02:02,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:02,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:02,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:02,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:02,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:02,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:02,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:02,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:02,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:02,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:02,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:02,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:02:02,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:02,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:02,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:02,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:02,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:02,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:02,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:02:02,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:02,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:02,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:02,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:02,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:02,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:02,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:02:02,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:02,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:02,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:02,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:02,921 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 08:02:02,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505806760] [2020-09-25 08:02:02,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:02,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:02,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523007910] [2020-09-25 08:02:02,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:02,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:02,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:02,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:02,926 INFO L87 Difference]: Start difference. First operand 167 states and 227 transitions. Second operand 7 states. [2020-09-25 08:02:03,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:03,166 INFO L93 Difference]: Finished difference Result 199 states and 271 transitions. [2020-09-25 08:02:03,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:02:03,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-25 08:02:03,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:03,174 INFO L225 Difference]: With dead ends: 199 [2020-09-25 08:02:03,175 INFO L226 Difference]: Without dead ends: 197 [2020-09-25 08:02:03,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:02:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-09-25 08:02:03,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 171. [2020-09-25 08:02:03,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-09-25 08:02:03,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 230 transitions. [2020-09-25 08:02:03,214 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 230 transitions. Word has length 64 [2020-09-25 08:02:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:03,215 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 230 transitions. [2020-09-25 08:02:03,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 230 transitions. [2020-09-25 08:02:03,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 08:02:03,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:03,218 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:03,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:02:03,218 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:03,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:03,218 INFO L82 PathProgramCache]: Analyzing trace with hash 642195662, now seen corresponding path program 1 times [2020-09-25 08:02:03,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:03,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384289417] [2020-09-25 08:02:03,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:03,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:03,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:03,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:04,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:04,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 08:02:04,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:02:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1695 [2020-09-25 08:02:04,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:04,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:02:04,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 08:02:04,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 08:02:04,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:04,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:04,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:04,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:04,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:04,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:04,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:04,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:04,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:04,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:04,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:05,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:05,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:05,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:05,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:05,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:05,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:05,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:05,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:05,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:05,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:05,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:05,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:05,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:05,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:05,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:05,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:05,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:05,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 08:02:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:05,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:05,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:05,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:05,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:05,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:05,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:05,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 08:02:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:05,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:05,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:05,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:05,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:02:05,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:05,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:05,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:05,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:05,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:05,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:05,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:05,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:05,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:05,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:05,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-25 08:02:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:05,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:05,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:05,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:05,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:05,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:05,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 08:02:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:05,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:05,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:05,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:05,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:05,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:05,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:05,102 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 08:02:05,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384289417] [2020-09-25 08:02:05,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:05,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:05,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145760736] [2020-09-25 08:02:05,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:05,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:05,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:05,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:05,105 INFO L87 Difference]: Start difference. First operand 171 states and 230 transitions. Second operand 7 states. [2020-09-25 08:02:05,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:05,297 INFO L93 Difference]: Finished difference Result 216 states and 288 transitions. [2020-09-25 08:02:05,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:02:05,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2020-09-25 08:02:05,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:05,300 INFO L225 Difference]: With dead ends: 216 [2020-09-25 08:02:05,300 INFO L226 Difference]: Without dead ends: 214 [2020-09-25 08:02:05,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:02:05,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-09-25 08:02:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 143. [2020-09-25 08:02:05,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-09-25 08:02:05,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 181 transitions. [2020-09-25 08:02:05,317 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 181 transitions. Word has length 68 [2020-09-25 08:02:05,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:05,318 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 181 transitions. [2020-09-25 08:02:05,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:05,318 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 181 transitions. [2020-09-25 08:02:05,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 08:02:05,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:05,319 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:05,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:02:05,320 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:05,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:05,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1715909932, now seen corresponding path program 1 times [2020-09-25 08:02:05,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:05,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223154158] [2020-09-25 08:02:05,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:05,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:02:06,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:02:06,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-09-25 08:02:06,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:02:06,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:02:06,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 08:02:06,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:06,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:06,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:06,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:06,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:06,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:06,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:06,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:06,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:06,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:06,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 08:02:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:06,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 08:02:06,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223154158] [2020-09-25 08:02:06,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:06,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:06,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021649251] [2020-09-25 08:02:06,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:06,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:06,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:06,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:06,212 INFO L87 Difference]: Start difference. First operand 143 states and 181 transitions. Second operand 7 states. [2020-09-25 08:02:06,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:06,376 INFO L93 Difference]: Finished difference Result 192 states and 246 transitions. [2020-09-25 08:02:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:02:06,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 08:02:06,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:06,379 INFO L225 Difference]: With dead ends: 192 [2020-09-25 08:02:06,379 INFO L226 Difference]: Without dead ends: 190 [2020-09-25 08:02:06,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:02:06,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-25 08:02:06,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 176. [2020-09-25 08:02:06,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-25 08:02:06,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 226 transitions. [2020-09-25 08:02:06,397 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 226 transitions. Word has length 69 [2020-09-25 08:02:06,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:06,397 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 226 transitions. [2020-09-25 08:02:06,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 226 transitions. [2020-09-25 08:02:06,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 08:02:06,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:06,399 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:06,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 08:02:06,399 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:06,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:06,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1528474552, now seen corresponding path program 1 times [2020-09-25 08:02:06,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:06,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506033174] [2020-09-25 08:02:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-25 08:02:06,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 08:02:06,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:02:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 08:02:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 08:02:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:06,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:06,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:06,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:06,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:06,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:06,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:06,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:06,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:06,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:06,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 08:02:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:06,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 08:02:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:06,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:06,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:06,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:06,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:06,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:06,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-25 08:02:06,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506033174] [2020-09-25 08:02:06,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:06,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:02:06,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872059782] [2020-09-25 08:02:06,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:02:06,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:06,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:02:06,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:02:06,835 INFO L87 Difference]: Start difference. First operand 176 states and 226 transitions. Second operand 8 states. [2020-09-25 08:02:07,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:07,076 INFO L93 Difference]: Finished difference Result 182 states and 231 transitions. [2020-09-25 08:02:07,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:02:07,077 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-25 08:02:07,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:07,079 INFO L225 Difference]: With dead ends: 182 [2020-09-25 08:02:07,079 INFO L226 Difference]: Without dead ends: 180 [2020-09-25 08:02:07,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:02:07,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-25 08:02:07,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-09-25 08:02:07,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-09-25 08:02:07,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 229 transitions. [2020-09-25 08:02:07,096 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 229 transitions. Word has length 74 [2020-09-25 08:02:07,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:07,097 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 229 transitions. [2020-09-25 08:02:07,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:02:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 229 transitions. [2020-09-25 08:02:07,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 08:02:07,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:07,098 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:07,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 08:02:07,099 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:07,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1530703596, now seen corresponding path program 1 times [2020-09-25 08:02:07,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:07,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298583732] [2020-09-25 08:02:07,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 08:02:07,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:07,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-25 08:02:07,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:02:07,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 08:02:07,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 08:02:07,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:07,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:07,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:07,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:07,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:07,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:07,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:07,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:07,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:07,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:07,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:07,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:07,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:07,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:07,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:07,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:07,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:07,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:07,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:07,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:07,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:07,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:07,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:07,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:07,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:07,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:07,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:07,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:07,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:07,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:07,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:07,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:07,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:07,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:07,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:07,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 08:02:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:07,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:07,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:07,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:07,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:07,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:07,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 08:02:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:07,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:07,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:07,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:07,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:07,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:07,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 08:02:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:07,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:07,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:07,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:07,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:07,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:07,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:07,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:07,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:07,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:07,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-09-25 08:02:07,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298583732] [2020-09-25 08:02:07,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:07,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:07,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072294924] [2020-09-25 08:02:07,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:07,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:07,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:07,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:07,691 INFO L87 Difference]: Start difference. First operand 180 states and 229 transitions. Second operand 7 states. [2020-09-25 08:02:07,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:07,875 INFO L93 Difference]: Finished difference Result 244 states and 321 transitions. [2020-09-25 08:02:07,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:02:07,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-09-25 08:02:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:07,879 INFO L225 Difference]: With dead ends: 244 [2020-09-25 08:02:07,879 INFO L226 Difference]: Without dead ends: 242 [2020-09-25 08:02:07,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:02:07,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-09-25 08:02:07,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 230. [2020-09-25 08:02:07,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 08:02:07,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 307 transitions. [2020-09-25 08:02:07,910 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 307 transitions. Word has length 79 [2020-09-25 08:02:07,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:07,911 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 307 transitions. [2020-09-25 08:02:07,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 307 transitions. [2020-09-25 08:02:07,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 08:02:07,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:07,913 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:07,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 08:02:07,914 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:07,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:07,915 INFO L82 PathProgramCache]: Analyzing trace with hash -895183749, now seen corresponding path program 1 times [2020-09-25 08:02:07,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:07,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366559751] [2020-09-25 08:02:07,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:07,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 08:02:08,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-09-25 08:02:08,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:02:08,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 08:02:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 08:02:08,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:08,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:08,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:08,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:08,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:08,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:08,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:08,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:08,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:08,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:08,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:08,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:08,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:08,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:08,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:08,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 08:02:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:08,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:08,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 08:02:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:08,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:08,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 08:02:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:08,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:08,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 08:02:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:08,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:08,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:08,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:08,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:08,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:08,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-25 08:02:08,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366559751] [2020-09-25 08:02:08,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:08,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:02:08,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563700179] [2020-09-25 08:02:08,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:02:08,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:08,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:02:08,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:02:08,562 INFO L87 Difference]: Start difference. First operand 230 states and 307 transitions. Second operand 10 states. [2020-09-25 08:02:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:08,861 INFO L93 Difference]: Finished difference Result 236 states and 312 transitions. [2020-09-25 08:02:08,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:02:08,862 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-09-25 08:02:08,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:08,867 INFO L225 Difference]: With dead ends: 236 [2020-09-25 08:02:08,868 INFO L226 Difference]: Without dead ends: 234 [2020-09-25 08:02:08,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:02:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-09-25 08:02:08,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-09-25 08:02:08,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 08:02:08,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 310 transitions. [2020-09-25 08:02:08,896 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 310 transitions. Word has length 90 [2020-09-25 08:02:08,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:08,897 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 310 transitions. [2020-09-25 08:02:08,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:02:08,897 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 310 transitions. [2020-09-25 08:02:08,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-09-25 08:02:08,899 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:08,899 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:08,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 08:02:08,899 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:08,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:08,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1272604239, now seen corresponding path program 1 times [2020-09-25 08:02:08,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:08,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629871862] [2020-09-25 08:02:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:08,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:09,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:09,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:10,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:10,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-25 08:02:10,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:02:10,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2064 [2020-09-25 08:02:10,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:10,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:02:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 08:02:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 08:02:10,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:11,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:11,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:11,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:11,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:11,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:11,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:11,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:11,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:11,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:11,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:11,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:11,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:11,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:11,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:11,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:11,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:11,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:11,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 08:02:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:11,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:11,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 08:02:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:11,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:11,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 08:02:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:11,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:11,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 08:02:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:11,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:11,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:02:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:11,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:11,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-09-25 08:02:11,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629871862] [2020-09-25 08:02:11,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:11,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:02:11,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275095378] [2020-09-25 08:02:11,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:02:11,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:11,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:02:11,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:02:11,228 INFO L87 Difference]: Start difference. First operand 234 states and 310 transitions. Second operand 9 states. [2020-09-25 08:02:11,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:11,433 INFO L93 Difference]: Finished difference Result 260 states and 337 transitions. [2020-09-25 08:02:11,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:02:11,433 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-09-25 08:02:11,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:11,435 INFO L225 Difference]: With dead ends: 260 [2020-09-25 08:02:11,436 INFO L226 Difference]: Without dead ends: 258 [2020-09-25 08:02:11,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-09-25 08:02:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-25 08:02:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2020-09-25 08:02:11,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-09-25 08:02:11,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 323 transitions. [2020-09-25 08:02:11,472 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 323 transitions. Word has length 95 [2020-09-25 08:02:11,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:11,473 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 323 transitions. [2020-09-25 08:02:11,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:02:11,473 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 323 transitions. [2020-09-25 08:02:11,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-09-25 08:02:11,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:11,475 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:11,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 08:02:11,475 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:11,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:11,475 INFO L82 PathProgramCache]: Analyzing trace with hash -239051641, now seen corresponding path program 1 times [2020-09-25 08:02:11,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:11,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100827178] [2020-09-25 08:02:11,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:14,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:15,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 08:02:16,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:02:16,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:02:16,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:02:16,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:02:16,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 08:02:16,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:16,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:16,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:16,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:16,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:16,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:16,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:16,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:16,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:16,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 08:02:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:16,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:16,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:16,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:16,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 08:02:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:16,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:16,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:16,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:16,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:16,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:16,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-25 08:02:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:16,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:02:16,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:16,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:16,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:16,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 08:02:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:16,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:16,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:16,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:16,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:02:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:16,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:02:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:02:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:16,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-25 08:02:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:16,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:16,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:02:16,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:16,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-25 08:02:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:16,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:02:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:16,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-25 08:02:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:16,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:16,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:02:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:16,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 43 proven. 11 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-09-25 08:02:16,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100827178] [2020-09-25 08:02:16,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:02:16,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:02:16,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402836299] [2020-09-25 08:02:16,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:16,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:16,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:16,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:16,777 INFO L87 Difference]: Start difference. First operand 246 states and 323 transitions. Second operand 7 states. [2020-09-25 08:02:17,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:17,238 INFO L93 Difference]: Finished difference Result 475 states and 636 transitions. [2020-09-25 08:02:17,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:02:17,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2020-09-25 08:02:17,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:17,243 INFO L225 Difference]: With dead ends: 475 [2020-09-25 08:02:17,243 INFO L226 Difference]: Without dead ends: 252 [2020-09-25 08:02:17,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:02:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-25 08:02:17,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 245. [2020-09-25 08:02:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 08:02:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 320 transitions. [2020-09-25 08:02:17,286 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 320 transitions. Word has length 97 [2020-09-25 08:02:17,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:17,286 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 320 transitions. [2020-09-25 08:02:17,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:17,287 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 320 transitions. [2020-09-25 08:02:17,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-09-25 08:02:17,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:17,297 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:17,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 08:02:17,297 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:17,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:17,298 INFO L82 PathProgramCache]: Analyzing trace with hash -960498755, now seen corresponding path program 1 times [2020-09-25 08:02:17,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:17,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117428338] [2020-09-25 08:02:17,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:17,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:17,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:17,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:18,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:18,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 08:02:22,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:02:22,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 08:02:22,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:02:22,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:02:22,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 08:02:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:22,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:22,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:22,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:22,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:02:22,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:22,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:22,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:22,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:02:22,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:22,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:22,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 08:02:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:22,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:02:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:22,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 08:02:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 08:02:22,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 08:02:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:22,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 08:02:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:02:22,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:02:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:22,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 08:02:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:22,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:22,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:22,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:22,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:22,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:22,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:22,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:22,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:22,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:22,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-25 08:02:22,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117428338] [2020-09-25 08:02:22,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:22,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:02:22,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281806474] [2020-09-25 08:02:22,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:02:22,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:22,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:02:22,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:02:22,644 INFO L87 Difference]: Start difference. First operand 245 states and 320 transitions. Second operand 8 states. [2020-09-25 08:02:22,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:22,913 INFO L93 Difference]: Finished difference Result 292 states and 380 transitions. [2020-09-25 08:02:22,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:02:22,914 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-09-25 08:02:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:22,916 INFO L225 Difference]: With dead ends: 292 [2020-09-25 08:02:22,916 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 08:02:22,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:02:22,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 08:02:22,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 269. [2020-09-25 08:02:22,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-09-25 08:02:22,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 351 transitions. [2020-09-25 08:02:22,943 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 351 transitions. Word has length 110 [2020-09-25 08:02:22,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:22,943 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 351 transitions. [2020-09-25 08:02:22,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:02:22,944 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 351 transitions. [2020-09-25 08:02:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-09-25 08:02:22,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:22,947 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:22,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 08:02:22,948 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:22,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:22,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1038471395, now seen corresponding path program 1 times [2020-09-25 08:02:22,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:22,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886653562] [2020-09-25 08:02:22,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:22,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:23,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:23,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:23,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:27,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:27,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 08:02:27,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:02:27,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 08:02:27,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:27,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:27,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:02:27,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:02:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 08:02:27,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:28,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:28,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:28,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:28,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:28,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:28,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:28,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:28,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:28,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:28,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:28,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:02:28,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:28,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:28,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:28,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:28,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:28,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:28,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:28,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 08:02:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:28,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:28,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 08:02:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:28,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:28,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 08:02:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:28,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 08:02:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:28,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:28,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:02:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:28,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:28,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 08:02:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:02:28,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:28,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 08:02:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:28,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:28,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:28,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:28,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:28,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-25 08:02:28,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886653562] [2020-09-25 08:02:28,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:28,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:02:28,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100406276] [2020-09-25 08:02:28,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:02:28,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:28,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:02:28,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:02:28,218 INFO L87 Difference]: Start difference. First operand 269 states and 351 transitions. Second operand 9 states. [2020-09-25 08:02:28,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:28,623 INFO L93 Difference]: Finished difference Result 367 states and 490 transitions. [2020-09-25 08:02:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:02:28,623 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-09-25 08:02:28,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:28,628 INFO L225 Difference]: With dead ends: 367 [2020-09-25 08:02:28,628 INFO L226 Difference]: Without dead ends: 365 [2020-09-25 08:02:28,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:02:28,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-09-25 08:02:28,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 344. [2020-09-25 08:02:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 08:02:28,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 461 transitions. [2020-09-25 08:02:28,671 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 461 transitions. Word has length 110 [2020-09-25 08:02:28,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:28,672 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 461 transitions. [2020-09-25 08:02:28,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:02:28,672 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 461 transitions. [2020-09-25 08:02:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 08:02:28,676 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:28,676 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:28,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 08:02:28,677 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:28,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:28,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1539222205, now seen corresponding path program 1 times [2020-09-25 08:02:28,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:28,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748024865] [2020-09-25 08:02:28,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:31,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:31,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 08:02:31,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:02:31,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3239 [2020-09-25 08:02:31,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:31,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:02:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 08:02:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 08:02:31,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:32,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:32,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:32,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:32,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:32,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:32,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:32,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:32,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:32,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:32,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:32,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:32,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:02:32,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:32,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:32,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:32,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:32,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:32,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:32,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 08:02:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:32,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:32,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:02:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:32,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:32,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 08:02:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:02:32,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:32,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 08:02:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:32,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:32,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 08:02:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:02:32,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:32,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:02:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:32,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 08:02:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:32,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:32,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 08:02:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:32,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:32,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 08:02:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:32,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:32,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:32,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:32,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:32,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:32,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-09-25 08:02:32,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748024865] [2020-09-25 08:02:32,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:32,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:02:32,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871755311] [2020-09-25 08:02:32,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:02:32,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:32,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:02:32,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:02:32,234 INFO L87 Difference]: Start difference. First operand 344 states and 461 transitions. Second operand 9 states. [2020-09-25 08:02:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:32,532 INFO L93 Difference]: Finished difference Result 376 states and 496 transitions. [2020-09-25 08:02:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:02:32,533 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-09-25 08:02:32,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:32,537 INFO L225 Difference]: With dead ends: 376 [2020-09-25 08:02:32,538 INFO L226 Difference]: Without dead ends: 374 [2020-09-25 08:02:32,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-09-25 08:02:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-09-25 08:02:32,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 358. [2020-09-25 08:02:32,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-25 08:02:32,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 478 transitions. [2020-09-25 08:02:32,575 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 478 transitions. Word has length 120 [2020-09-25 08:02:32,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:32,575 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 478 transitions. [2020-09-25 08:02:32,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:02:32,576 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 478 transitions. [2020-09-25 08:02:32,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 08:02:32,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:32,578 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:32,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 08:02:32,578 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:32,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:32,578 INFO L82 PathProgramCache]: Analyzing trace with hash 871752502, now seen corresponding path program 1 times [2020-09-25 08:02:32,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:32,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990082546] [2020-09-25 08:02:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:32,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:32,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 08:02:37,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:02:37,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:02:37,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:02:37,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 08:02:37,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 08:02:37,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:37,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:37,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:37,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:37,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:37,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:37,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:37,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:37,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:37,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:37,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:37,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:37,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:37,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 08:02:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:37,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 08:02:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:37,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 08:02:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:37,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 08:02:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:37,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:02:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:37,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 08:02:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:37,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:37,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 08:02:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:37,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:37,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 08:02:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:37,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:37,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 08:02:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:37,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:37,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:37,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:37,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:37,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:37,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:37,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:37,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:37,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:37,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:37,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:37,893 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-09-25 08:02:37,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990082546] [2020-09-25 08:02:37,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:37,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 08:02:37,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588584330] [2020-09-25 08:02:37,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:02:37,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:37,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:02:37,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:02:37,895 INFO L87 Difference]: Start difference. First operand 358 states and 478 transitions. Second operand 11 states. [2020-09-25 08:02:38,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:38,209 INFO L93 Difference]: Finished difference Result 418 states and 557 transitions. [2020-09-25 08:02:38,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:02:38,210 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-09-25 08:02:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:38,213 INFO L225 Difference]: With dead ends: 418 [2020-09-25 08:02:38,213 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 08:02:38,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:02:38,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 08:02:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 400. [2020-09-25 08:02:38,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-09-25 08:02:38,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 539 transitions. [2020-09-25 08:02:38,243 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 539 transitions. Word has length 120 [2020-09-25 08:02:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:38,243 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 539 transitions. [2020-09-25 08:02:38,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 08:02:38,244 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 539 transitions. [2020-09-25 08:02:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 08:02:38,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:38,246 INFO L422 BasicCegarLoop]: trace histogram [18, 17, 17, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:38,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 08:02:38,246 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:38,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:38,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1668448602, now seen corresponding path program 1 times [2020-09-25 08:02:38,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:38,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903637482] [2020-09-25 08:02:38,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:38,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:38,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:38,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:39,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 08:02:43,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:02:43,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 08:02:43,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:02:43,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 08:02:43,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 08:02:43,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:02:43,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:43,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:43,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 08:02:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:43,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:02:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:43,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:02:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:43,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 08:02:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:43,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:02:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:43,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 08:02:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:43,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:43,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:43,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 08:02:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:43,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:02:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:43,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:43,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 08:02:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:43,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:43,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 08:02:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:43,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:43,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 08:02:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:43,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:43,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:02:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:43,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 08:02:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:02:43,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:43,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 08:02:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:43,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:43,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 08:02:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:43,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:43,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 08:02:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:02:43,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:43,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 08:02:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:43,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:43,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:43,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:02:43,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:43,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:02:43,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:43,566 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-09-25 08:02:43,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903637482] [2020-09-25 08:02:43,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:43,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 08:02:43,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024819482] [2020-09-25 08:02:43,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:02:43,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:43,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:02:43,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:02:43,571 INFO L87 Difference]: Start difference. First operand 400 states and 539 transitions. Second operand 11 states. [2020-09-25 08:02:43,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:43,880 INFO L93 Difference]: Finished difference Result 430 states and 570 transitions. [2020-09-25 08:02:43,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 08:02:43,881 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-09-25 08:02:43,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:43,884 INFO L225 Difference]: With dead ends: 430 [2020-09-25 08:02:43,884 INFO L226 Difference]: Without dead ends: 428 [2020-09-25 08:02:43,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:02:43,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-09-25 08:02:43,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 412. [2020-09-25 08:02:43,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-25 08:02:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 552 transitions. [2020-09-25 08:02:43,918 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 552 transitions. Word has length 136 [2020-09-25 08:02:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:43,918 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 552 transitions. [2020-09-25 08:02:43,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 08:02:43,918 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 552 transitions. [2020-09-25 08:02:43,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 08:02:43,920 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:43,921 INFO L422 BasicCegarLoop]: trace histogram [18, 17, 17, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:43,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 08:02:43,921 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:43,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:43,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1068522224, now seen corresponding path program 1 times [2020-09-25 08:02:43,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:43,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213016818] [2020-09-25 08:02:43,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:43,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:44,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking...