/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-tiling/rewnifrev2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:08:39,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:08:39,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:08:39,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:08:39,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:08:39,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:08:39,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:08:39,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:08:39,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:08:39,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:08:39,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:08:39,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:08:39,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:08:39,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:08:39,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:08:39,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:08:39,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:08:39,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:08:39,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:08:39,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:08:39,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:08:39,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:08:39,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:08:39,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:08:39,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:08:39,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:08:39,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:08:39,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:08:39,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:08:39,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:08:39,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:08:39,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:08:39,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:08:39,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:08:39,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:08:39,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:08:39,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:08:39,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:08:39,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:08:39,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:08:39,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:08:39,550 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 00:08:39,591 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:08:39,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:08:39,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:08:39,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:08:39,594 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:08:39,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:08:39,595 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:08:39,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:08:39,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:08:39,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:08:39,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:08:39,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:08:39,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:08:39,597 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:08:39,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:08:39,597 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:08:39,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:08:39,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:08:39,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:08:39,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:08:39,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:08:39,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:08:39,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:08:39,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:08:39,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:08:39,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:08:39,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:08:39,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:08:39,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:08:39,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:08:39,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:08:39,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:08:39,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:08:39,917 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:08:39,918 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:08:39,918 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/rewnifrev2.c [2020-10-14 00:08:39,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60a1930bf/93bb3b1608ff49f590e3e9c79afac209/FLAGe36882fd8 [2020-10-14 00:08:40,429 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:08:40,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/rewnifrev2.c [2020-10-14 00:08:40,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60a1930bf/93bb3b1608ff49f590e3e9c79afac209/FLAGe36882fd8 [2020-10-14 00:08:40,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60a1930bf/93bb3b1608ff49f590e3e9c79afac209 [2020-10-14 00:08:40,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:08:40,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:08:40,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:08:40,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:08:40,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:08:40,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:08:40" (1/1) ... [2020-10-14 00:08:40,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a8d835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:40, skipping insertion in model container [2020-10-14 00:08:40,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:08:40" (1/1) ... [2020-10-14 00:08:40,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:08:40,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:08:41,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:08:41,026 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:08:41,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:08:41,059 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:08:41,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41 WrapperNode [2020-10-14 00:08:41,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:08:41,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:08:41,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:08:41,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:08:41,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41" (1/1) ... [2020-10-14 00:08:41,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41" (1/1) ... [2020-10-14 00:08:41,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41" (1/1) ... [2020-10-14 00:08:41,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41" (1/1) ... [2020-10-14 00:08:41,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41" (1/1) ... [2020-10-14 00:08:41,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41" (1/1) ... [2020-10-14 00:08:41,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41" (1/1) ... [2020-10-14 00:08:41,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:08:41,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:08:41,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:08:41,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:08:41,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:08:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:08:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:08:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 00:08:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 00:08:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:08:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:08:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 00:08:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 00:08:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 00:08:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:08:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 00:08:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:08:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 00:08:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 00:08:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 00:08:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:08:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:08:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 00:08:41,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:08:41,460 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-14 00:08:41,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:08:41 BoogieIcfgContainer [2020-10-14 00:08:41,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:08:41,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:08:41,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:08:41,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:08:41,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:08:40" (1/3) ... [2020-10-14 00:08:41,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732b283f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:08:41, skipping insertion in model container [2020-10-14 00:08:41,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:41" (2/3) ... [2020-10-14 00:08:41,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732b283f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:08:41, skipping insertion in model container [2020-10-14 00:08:41,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:08:41" (3/3) ... [2020-10-14 00:08:41,472 INFO L109 eAbstractionObserver]: Analyzing ICFG rewnifrev2.c [2020-10-14 00:08:41,483 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:08:41,490 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:08:41,504 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:08:41,535 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:08:41,536 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:08:41,536 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:08:41,536 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:08:41,536 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:08:41,537 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:08:41,537 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:08:41,537 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:08:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-14 00:08:41,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 00:08:41,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:41,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:41,569 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:41,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:41,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1473749012, now seen corresponding path program 1 times [2020-10-14 00:08:41,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:41,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462774138] [2020-10-14 00:08:41,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:41,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:41,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:41,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 00:08:41,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 00:08:41,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:41,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:41,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:41,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:41,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:08:41,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 00:08:41,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:41,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:41,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:41,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:41,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:41,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:08:41,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:41,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:41,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:41,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:41,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:41,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:41,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:08:41,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462774138] [2020-10-14 00:08:41,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:08:41,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 00:08:41,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908198681] [2020-10-14 00:08:41,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 00:08:41,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:41,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 00:08:41,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:08:41,990 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2020-10-14 00:08:42,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:42,099 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2020-10-14 00:08:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 00:08:42,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-14 00:08:42,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:42,110 INFO L225 Difference]: With dead ends: 45 [2020-10-14 00:08:42,110 INFO L226 Difference]: Without dead ends: 21 [2020-10-14 00:08:42,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:08:42,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-14 00:08:42,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-14 00:08:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-14 00:08:42,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-14 00:08:42,152 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2020-10-14 00:08:42,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:42,152 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-14 00:08:42,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 00:08:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-14 00:08:42,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 00:08:42,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:42,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:42,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:08:42,155 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:42,155 INFO L82 PathProgramCache]: Analyzing trace with hash 974335050, now seen corresponding path program 1 times [2020-10-14 00:08:42,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:42,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295815274] [2020-10-14 00:08:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:42,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:42,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:42,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:08:42,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:42,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-14 00:08:42,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:42,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 00:08:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:08:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 00:08:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:42,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:42,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:42,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:42,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:42,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:42,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:08:42,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:42,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:42,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:08:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:08:42,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295815274] [2020-10-14 00:08:42,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:08:42,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 00:08:42,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672253766] [2020-10-14 00:08:42,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 00:08:42,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:42,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 00:08:42,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-14 00:08:42,719 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 10 states. [2020-10-14 00:08:43,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:43,019 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-14 00:08:43,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:08:43,020 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-14 00:08:43,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:43,022 INFO L225 Difference]: With dead ends: 31 [2020-10-14 00:08:43,022 INFO L226 Difference]: Without dead ends: 29 [2020-10-14 00:08:43,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:08:43,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-14 00:08:43,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-10-14 00:08:43,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-14 00:08:43,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-14 00:08:43,041 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2020-10-14 00:08:43,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:43,042 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-14 00:08:43,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 00:08:43,042 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-14 00:08:43,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 00:08:43,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:43,044 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:43,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:08:43,045 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:43,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:43,045 INFO L82 PathProgramCache]: Analyzing trace with hash -844491903, now seen corresponding path program 1 times [2020-10-14 00:08:43,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:43,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523350881] [2020-10-14 00:08:43,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:43,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:43,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:43,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 00:08:43,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:43,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 00:08:43,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:43,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:43,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 00:08:43,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:08:43,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 00:08:43,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:43,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:43,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:43,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:43,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:43,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:43,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:43,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:43,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:43,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:43,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:43,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 00:08:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:43,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:43,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:43,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:43,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:43,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:08:43,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:43,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:08:43,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523350881] [2020-10-14 00:08:43,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:43,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 00:08:43,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661970070] [2020-10-14 00:08:43,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 00:08:43,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:43,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 00:08:43,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:08:43,421 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 11 states. [2020-10-14 00:08:43,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:43,801 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-10-14 00:08:43,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 00:08:43,802 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2020-10-14 00:08:43,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:43,803 INFO L225 Difference]: With dead ends: 39 [2020-10-14 00:08:43,803 INFO L226 Difference]: Without dead ends: 37 [2020-10-14 00:08:43,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-10-14 00:08:43,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-14 00:08:43,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-10-14 00:08:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-14 00:08:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-14 00:08:43,813 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2020-10-14 00:08:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:43,813 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-14 00:08:43,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 00:08:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-14 00:08:43,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 00:08:43,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:43,815 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:43,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:08:43,815 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:43,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:43,816 INFO L82 PathProgramCache]: Analyzing trace with hash 102618040, now seen corresponding path program 2 times [2020-10-14 00:08:43,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:43,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928569446] [2020-10-14 00:08:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:43,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:43,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:43,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 00:08:43,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:43,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 00:08:43,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:43,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 00:08:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 00:08:43,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:43,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:43,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:43,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:43,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:43,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:43,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:43,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:43,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:43,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:43,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:43,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:43,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:43,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 00:08:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:43,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:44,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:44,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:44,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:44,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:08:44,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:44,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:44,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:44,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:08:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:44,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:44,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:44,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:44,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:44,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:08:44,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:44,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:44,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 00:08:44,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928569446] [2020-10-14 00:08:44,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:44,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:08:44,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128887066] [2020-10-14 00:08:44,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:08:44,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:44,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:08:44,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:08:44,022 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2020-10-14 00:08:44,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:44,168 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2020-10-14 00:08:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:08:44,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-10-14 00:08:44,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:44,172 INFO L225 Difference]: With dead ends: 66 [2020-10-14 00:08:44,172 INFO L226 Difference]: Without dead ends: 38 [2020-10-14 00:08:44,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:08:44,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-14 00:08:44,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-10-14 00:08:44,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-14 00:08:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-10-14 00:08:44,180 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 32 [2020-10-14 00:08:44,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:44,181 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-10-14 00:08:44,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:08:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-10-14 00:08:44,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 00:08:44,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:44,182 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:44,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:08:44,183 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:44,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:44,183 INFO L82 PathProgramCache]: Analyzing trace with hash -67271530, now seen corresponding path program 3 times [2020-10-14 00:08:44,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:44,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684296270] [2020-10-14 00:08:44,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:44,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:44,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:44,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:08:44,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:44,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-14 00:08:44,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:44,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:44,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 00:08:44,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:08:44,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 00:08:44,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:44,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:44,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:44,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:44,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:44,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:44,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:44,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:44,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:44,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 00:08:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:44,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:44,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:44,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:44,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:44,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:08:44,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:44,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:44,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:44,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 00:08:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:44,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:44,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:44,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:44,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:44,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:08:44,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:44,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:44,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 00:08:44,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684296270] [2020-10-14 00:08:44,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:44,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 00:08:44,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999652491] [2020-10-14 00:08:44,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 00:08:44,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:44,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 00:08:44,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:08:44,603 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 13 states. [2020-10-14 00:08:45,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:45,167 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-14 00:08:45,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 00:08:45,167 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 34 [2020-10-14 00:08:45,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:45,169 INFO L225 Difference]: With dead ends: 49 [2020-10-14 00:08:45,169 INFO L226 Difference]: Without dead ends: 47 [2020-10-14 00:08:45,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2020-10-14 00:08:45,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-14 00:08:45,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-10-14 00:08:45,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-14 00:08:45,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-14 00:08:45,179 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 34 [2020-10-14 00:08:45,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:45,179 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-14 00:08:45,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 00:08:45,179 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-14 00:08:45,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-14 00:08:45,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:45,181 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:45,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:08:45,181 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:45,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:45,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1878171699, now seen corresponding path program 4 times [2020-10-14 00:08:45,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:45,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371670823] [2020-10-14 00:08:45,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:45,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:45,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:45,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 00:08:45,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:45,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 00:08:45,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:45,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 00:08:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:45,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 00:08:45,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:45,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:45,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:45,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:45,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:45,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:45,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:45,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:45,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:45,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:45,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:45,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:45,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:45,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 00:08:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:45,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:45,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:45,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:45,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:45,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:45,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:45,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:45,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:45,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 00:08:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:45,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:45,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:45,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:45,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:45,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:45,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:45,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:45,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:45,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:45,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:45,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:08:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:45,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:45,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:45,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:45,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:45,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:45,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:45,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:45,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:45,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:45,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:45,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 00:08:45,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371670823] [2020-10-14 00:08:45,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:45,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 00:08:45,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757975098] [2020-10-14 00:08:45,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 00:08:45,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:45,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 00:08:45,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-14 00:08:45,450 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 9 states. [2020-10-14 00:08:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:45,636 INFO L93 Difference]: Finished difference Result 84 states and 86 transitions. [2020-10-14 00:08:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 00:08:45,637 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-10-14 00:08:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:45,638 INFO L225 Difference]: With dead ends: 84 [2020-10-14 00:08:45,638 INFO L226 Difference]: Without dead ends: 48 [2020-10-14 00:08:45,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:08:45,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-14 00:08:45,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2020-10-14 00:08:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-14 00:08:45,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-14 00:08:45,646 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 42 [2020-10-14 00:08:45,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:45,647 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-14 00:08:45,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 00:08:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-14 00:08:45,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 00:08:45,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:45,648 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:45,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 00:08:45,649 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:45,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:45,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1415844651, now seen corresponding path program 5 times [2020-10-14 00:08:45,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:45,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575633160] [2020-10-14 00:08:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:45,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:46,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:46,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 00:08:46,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-10-14 00:08:46,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:46,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 00:08:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:08:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 00:08:46,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:46,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:46,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:46,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:46,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:46,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:46,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:08:46,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:46,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:46,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:46,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:46,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:46,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 00:08:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:46,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:46,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:46,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:46,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:46,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:08:46,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:46,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:46,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:46,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 00:08:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:46,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:46,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:46,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:46,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:46,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:08:46,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:46,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:46,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:46,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:46,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 00:08:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:46,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:46,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:46,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:46,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:46,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:08:46,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:46,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:46,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:46,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:46,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:46,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:46,452 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 00:08:46,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575633160] [2020-10-14 00:08:46,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:46,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 00:08:46,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983938025] [2020-10-14 00:08:46,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 00:08:46,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:46,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 00:08:46,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:08:46,455 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 15 states. [2020-10-14 00:08:47,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:47,346 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-10-14 00:08:47,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 00:08:47,347 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 44 [2020-10-14 00:08:47,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:47,349 INFO L225 Difference]: With dead ends: 59 [2020-10-14 00:08:47,349 INFO L226 Difference]: Without dead ends: 57 [2020-10-14 00:08:47,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2020-10-14 00:08:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-14 00:08:47,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2020-10-14 00:08:47,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-14 00:08:47,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-10-14 00:08:47,367 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 44 [2020-10-14 00:08:47,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:47,368 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-10-14 00:08:47,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 00:08:47,368 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-10-14 00:08:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 00:08:47,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:47,372 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:47,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 00:08:47,372 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:47,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:47,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1675266402, now seen corresponding path program 6 times [2020-10-14 00:08:47,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:47,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554512142] [2020-10-14 00:08:47,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:47,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:47,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:47,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:08:47,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:47,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-14 00:08:47,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:47,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 00:08:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:47,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 00:08:47,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:47,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:47,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:47,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:47,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:47,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:47,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:08:47,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:47,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:47,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:47,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:47,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:47,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:47,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 00:08:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:47,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:47,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:47,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:47,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:47,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:47,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:47,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:47,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 00:08:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:47,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:47,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:47,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:47,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:47,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:47,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:47,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:47,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 00:08:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:47,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:47,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:47,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:47,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:47,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:47,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:47,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:47,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:08:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:47,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:47,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:47,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:47,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:47,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:47,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:47,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:47,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:47,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:47,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:47,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 40 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 00:08:47,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554512142] [2020-10-14 00:08:47,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:47,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 00:08:47,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662273976] [2020-10-14 00:08:47,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 00:08:47,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:47,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 00:08:47,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 00:08:47,814 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 10 states. [2020-10-14 00:08:48,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:48,063 INFO L93 Difference]: Finished difference Result 102 states and 104 transitions. [2020-10-14 00:08:48,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 00:08:48,063 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-10-14 00:08:48,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:48,065 INFO L225 Difference]: With dead ends: 102 [2020-10-14 00:08:48,065 INFO L226 Difference]: Without dead ends: 58 [2020-10-14 00:08:48,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-10-14 00:08:48,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-14 00:08:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2020-10-14 00:08:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-14 00:08:48,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-14 00:08:48,074 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 52 [2020-10-14 00:08:48,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:48,074 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-14 00:08:48,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 00:08:48,075 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-14 00:08:48,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 00:08:48,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:48,075 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:48,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 00:08:48,076 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:48,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:48,076 INFO L82 PathProgramCache]: Analyzing trace with hash -911794368, now seen corresponding path program 7 times [2020-10-14 00:08:48,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:48,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412342241] [2020-10-14 00:08:48,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:48,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:48,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:48,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 00:08:48,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:48,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-10-14 00:08:48,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:48,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:48,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 00:08:48,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:08:48,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 00:08:48,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:49,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:49,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:49,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:49,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:49,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:49,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:49,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:49,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:49,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:49,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 00:08:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:49,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:49,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:49,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:49,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:49,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:08:49,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:49,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:49,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:49,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:49,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:49,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:49,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 00:08:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:49,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:49,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:49,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:49,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:49,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:49,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:49,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:49,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:49,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:08:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:49,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:49,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:49,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:49,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:49,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:08:49,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:49,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:49,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:49,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:08:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:49,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:49,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:49,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:49,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:49,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:08:49,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:49,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:49,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 44 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 00:08:49,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412342241] [2020-10-14 00:08:49,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:49,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 00:08:49,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474185580] [2020-10-14 00:08:49,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 00:08:49,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:49,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 00:08:49,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2020-10-14 00:08:49,255 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 20 states. [2020-10-14 00:08:50,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:50,305 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-10-14 00:08:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 00:08:50,305 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 54 [2020-10-14 00:08:50,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:50,306 INFO L225 Difference]: With dead ends: 69 [2020-10-14 00:08:50,306 INFO L226 Difference]: Without dead ends: 67 [2020-10-14 00:08:50,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=204, Invalid=1128, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 00:08:50,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-14 00:08:50,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2020-10-14 00:08:50,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-14 00:08:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-14 00:08:50,316 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 54 [2020-10-14 00:08:50,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:50,317 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-14 00:08:50,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 00:08:50,317 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-14 00:08:50,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 00:08:50,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:50,318 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:50,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 00:08:50,318 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:50,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1156493431, now seen corresponding path program 8 times [2020-10-14 00:08:50,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:50,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863701687] [2020-10-14 00:08:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:50,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:50,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:50,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 00:08:50,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-14 00:08:50,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:50,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 00:08:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 00:08:50,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:50,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:50,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:50,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:50,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:50,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:50,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:50,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:50,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:50,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:50,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 00:08:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:50,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:50,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:50,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:50,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:50,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:50,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:50,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:50,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:50,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 00:08:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:50,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:50,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:50,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:50,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:50,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:50,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:50,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:50,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:08:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:50,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:50,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:50,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:50,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:50,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:50,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:50,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:50,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:50,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:08:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:50,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:50,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:50,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:50,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:50,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:50,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:50,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:50,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:50,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:08:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:50,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:50,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:50,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:50,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:50,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:50,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:50,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:50,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:50,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:50,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:50,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 60 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 00:08:50,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863701687] [2020-10-14 00:08:50,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:50,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 00:08:50,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930572831] [2020-10-14 00:08:50,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 00:08:50,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:50,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 00:08:50,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:08:50,789 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 11 states. [2020-10-14 00:08:51,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:51,039 INFO L93 Difference]: Finished difference Result 120 states and 122 transitions. [2020-10-14 00:08:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 00:08:51,040 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2020-10-14 00:08:51,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:51,041 INFO L225 Difference]: With dead ends: 120 [2020-10-14 00:08:51,041 INFO L226 Difference]: Without dead ends: 68 [2020-10-14 00:08:51,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-14 00:08:51,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-14 00:08:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2020-10-14 00:08:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-14 00:08:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2020-10-14 00:08:51,051 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 62 [2020-10-14 00:08:51,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:51,051 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2020-10-14 00:08:51,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 00:08:51,051 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2020-10-14 00:08:51,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 00:08:51,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:51,052 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:51,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 00:08:51,053 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:51,053 INFO L82 PathProgramCache]: Analyzing trace with hash 370673877, now seen corresponding path program 9 times [2020-10-14 00:08:51,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:51,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78692156] [2020-10-14 00:08:51,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:51,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:52,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:52,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 00:08:52,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:52,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977 [2020-10-14 00:08:52,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:52,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 00:08:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:08:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 00:08:52,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:52,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:52,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:52,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:52,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:52,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:52,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:52,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:52,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:52,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:52,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:52,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:52,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:52,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:08:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:52,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:52,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:52,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:52,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:52,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:52,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:52,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:52,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:52,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:52,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 00:08:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:52,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:52,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:52,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:52,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:52,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:52,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:52,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 00:08:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:52,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:52,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:52,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:52,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:52,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:52,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:52,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:52,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:08:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:52,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:52,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:52,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:52,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:52,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:52,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:52,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:52,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:52,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 00:08:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:52,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:52,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:52,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:52,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:52,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:52,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:52,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:52,764 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 15 proven. 70 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 00:08:52,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78692156] [2020-10-14 00:08:52,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:52,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 00:08:52,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358444041] [2020-10-14 00:08:52,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 00:08:52,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:52,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 00:08:52,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2020-10-14 00:08:52,767 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand 23 states. [2020-10-14 00:08:54,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:54,104 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-14 00:08:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 00:08:54,104 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 64 [2020-10-14 00:08:54,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:54,105 INFO L225 Difference]: With dead ends: 79 [2020-10-14 00:08:54,105 INFO L226 Difference]: Without dead ends: 77 [2020-10-14 00:08:54,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=265, Invalid=1541, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 00:08:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-14 00:08:54,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2020-10-14 00:08:54,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-14 00:08:54,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-10-14 00:08:54,126 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 64 [2020-10-14 00:08:54,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:54,126 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-10-14 00:08:54,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 00:08:54,126 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-10-14 00:08:54,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 00:08:54,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:54,129 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:54,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 00:08:54,130 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:54,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:54,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1237633780, now seen corresponding path program 10 times [2020-10-14 00:08:54,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:54,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404137627] [2020-10-14 00:08:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:54,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:54,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:54,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 00:08:54,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:54,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-14 00:08:54,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:54,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:54,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 00:08:54,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:54,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 00:08:54,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:54,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:54,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:54,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:54,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:54,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:54,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:54,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:54,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:54,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:54,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:08:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:54,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:54,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:54,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:54,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:54,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:54,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:54,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:54,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:54,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:54,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:54,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:54,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 00:08:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:54,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:54,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:54,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:54,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:54,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:54,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:54,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:54,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:54,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 00:08:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:54,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:54,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:54,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:54,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:54,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:54,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:54,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:54,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:08:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:54,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:54,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:54,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:54,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:54,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:54,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:54,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:54,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:54,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:54,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 00:08:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:54,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:54,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:54,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:54,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:54,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:54,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:54,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:54,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:54,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:54,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:54,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:54,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 00:08:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:54,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:54,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:54,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:54,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:54,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:54,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:54,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:54,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 84 proven. 25 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 00:08:54,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404137627] [2020-10-14 00:08:54,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:54,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 00:08:54,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544698362] [2020-10-14 00:08:54,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 00:08:54,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:54,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 00:08:54,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:08:54,744 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 12 states. [2020-10-14 00:08:55,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:55,082 INFO L93 Difference]: Finished difference Result 138 states and 140 transitions. [2020-10-14 00:08:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 00:08:55,083 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-10-14 00:08:55,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:55,084 INFO L225 Difference]: With dead ends: 138 [2020-10-14 00:08:55,084 INFO L226 Difference]: Without dead ends: 78 [2020-10-14 00:08:55,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2020-10-14 00:08:55,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-14 00:08:55,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 77. [2020-10-14 00:08:55,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-14 00:08:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-14 00:08:55,094 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 72 [2020-10-14 00:08:55,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:55,095 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-14 00:08:55,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 00:08:55,095 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-14 00:08:55,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 00:08:55,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:55,096 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:55,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 00:08:55,096 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:55,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:55,096 INFO L82 PathProgramCache]: Analyzing trace with hash 831533034, now seen corresponding path program 11 times [2020-10-14 00:08:55,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:55,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330522723] [2020-10-14 00:08:55,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:55,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:55,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:55,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 00:08:55,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:55,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-10-14 00:08:55,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:55,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 00:08:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:08:55,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 00:08:55,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:56,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:56,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:56,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:56,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:56,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:08:56,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:56,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:56,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:56,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:56,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 00:08:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:56,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:56,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:56,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:56,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:08:56,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:56,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:56,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:56,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:56,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:56,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:56,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:08:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:56,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:56,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:56,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:56,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:56,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:56,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:56,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:56,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:56,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:56,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:56,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:08:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:56,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:56,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:56,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:56,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:56,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:56,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:56,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:56,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:08:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:56,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:56,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:56,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:56,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:56,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:56,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:56,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:56,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:08:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:56,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:56,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:56,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:56,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:56,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:56,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:56,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:56,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:08:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:56,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:56,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:56,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:56,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:56,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:56,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:56,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:56,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:56,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:08:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 102 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 00:08:56,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330522723] [2020-10-14 00:08:56,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:56,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 00:08:56,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667587872] [2020-10-14 00:08:56,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 00:08:56,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:56,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 00:08:56,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2020-10-14 00:08:56,598 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 22 states. [2020-10-14 00:08:58,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:58,403 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-10-14 00:08:58,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 00:08:58,403 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 74 [2020-10-14 00:08:58,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:58,405 INFO L225 Difference]: With dead ends: 89 [2020-10-14 00:08:58,405 INFO L226 Difference]: Without dead ends: 87 [2020-10-14 00:08:58,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=303, Invalid=1677, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 00:08:58,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-14 00:08:58,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2020-10-14 00:08:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-14 00:08:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2020-10-14 00:08:58,417 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 74 [2020-10-14 00:08:58,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:58,418 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2020-10-14 00:08:58,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 00:08:58,418 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2020-10-14 00:08:58,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 00:08:58,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:58,419 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:58,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 00:08:58,419 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:58,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:58,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1882814241, now seen corresponding path program 12 times [2020-10-14 00:08:58,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:58,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839060761] [2020-10-14 00:08:58,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:58,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:59,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 00:08:59,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:59,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-10-14 00:08:59,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:59,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 00:08:59,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:59,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 00:08:59,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:59,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:59,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:59,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:59,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:08:59,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:59,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:59,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:59,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 00:08:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:59,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:59,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:59,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:59,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:59,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:59,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:59,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:59,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:59,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:08:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:59,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:59,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:59,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:59,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:08:59,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:59,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:59,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:59,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:59,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:59,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:08:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:59,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:59,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:59,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:59,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:08:59,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:59,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:59,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:08:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:59,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:59,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:59,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:59,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:59,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:59,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:59,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:59,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:08:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:59,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:59,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:59,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:59,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:59,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:59,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:59,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:59,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:08:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:59,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:59,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:59,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:59,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:59,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:59,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:59,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:59,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:08:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:59,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:59,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:08:59,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:59,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:08:59,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:59,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:59,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 112 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 00:08:59,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839060761] [2020-10-14 00:08:59,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:59,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 00:08:59,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414342730] [2020-10-14 00:08:59,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 00:08:59,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:59,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 00:08:59,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:08:59,369 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 13 states. [2020-10-14 00:08:59,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:59,684 INFO L93 Difference]: Finished difference Result 156 states and 158 transitions. [2020-10-14 00:08:59,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 00:08:59,685 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 82 [2020-10-14 00:08:59,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:59,687 INFO L225 Difference]: With dead ends: 156 [2020-10-14 00:08:59,687 INFO L226 Difference]: Without dead ends: 88 [2020-10-14 00:08:59,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2020-10-14 00:08:59,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-14 00:08:59,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2020-10-14 00:08:59,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-14 00:08:59,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2020-10-14 00:08:59,702 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 82 [2020-10-14 00:08:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:59,702 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2020-10-14 00:08:59,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 00:08:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2020-10-14 00:08:59,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 00:08:59,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:59,703 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:59,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 00:08:59,703 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:59,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:59,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1198584959, now seen corresponding path program 13 times [2020-10-14 00:08:59,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:59,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961676507] [2020-10-14 00:08:59,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:59,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:00,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:00,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 00:09:00,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:00,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1188 [2020-10-14 00:09:00,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:00,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 00:09:00,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:09:00,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 00:09:00,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:01,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:01,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:01,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:01,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 00:09:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:01,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:01,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:01,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:01,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:01,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 00:09:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:01,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:01,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:01,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:01,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:01,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:09:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:01,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:01,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:01,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:01,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 00:09:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:01,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:01,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:01,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:01,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 00:09:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:01,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:01,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:01,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:01,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:01,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 00:09:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:01,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:01,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:01,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:01,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:01,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 00:09:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:01,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:01,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:01,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 21 proven. 140 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 00:09:01,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961676507] [2020-10-14 00:09:01,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:01,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 00:09:01,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44919769] [2020-10-14 00:09:01,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 00:09:01,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:01,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 00:09:01,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2020-10-14 00:09:01,951 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand 29 states. [2020-10-14 00:09:04,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:04,488 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-10-14 00:09:04,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-14 00:09:04,489 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 84 [2020-10-14 00:09:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:04,490 INFO L225 Difference]: With dead ends: 99 [2020-10-14 00:09:04,490 INFO L226 Difference]: Without dead ends: 97 [2020-10-14 00:09:04,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=408, Invalid=2562, Unknown=0, NotChecked=0, Total=2970 [2020-10-14 00:09:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-14 00:09:04,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2020-10-14 00:09:04,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-14 00:09:04,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 96 transitions. [2020-10-14 00:09:04,502 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 96 transitions. Word has length 84 [2020-10-14 00:09:04,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:04,502 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 96 transitions. [2020-10-14 00:09:04,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 00:09:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 96 transitions. [2020-10-14 00:09:04,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 00:09:04,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:04,503 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:04,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 00:09:04,513 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:04,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:04,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1458230966, now seen corresponding path program 14 times [2020-10-14 00:09:04,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:04,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674178723] [2020-10-14 00:09:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:04,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 00:09:05,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-10-14 00:09:05,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 00:09:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 00:09:05,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:05,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:05,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:05,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:05,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:05,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 00:09:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:05,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:05,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:05,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:05,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 00:09:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:05,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:05,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:05,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:05,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:09:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:05,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:05,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:05,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:05,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:05,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:05,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 00:09:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:05,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:05,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:05,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:05,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 00:09:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:05,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:05,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:05,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 00:09:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:05,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:05,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:05,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:05,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 00:09:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:05,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:05,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:05,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:05,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:05,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:05,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 00:09:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:05,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:05,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:05,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:05,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:05,451 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 144 proven. 49 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 00:09:05,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674178723] [2020-10-14 00:09:05,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:05,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 00:09:05,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256079765] [2020-10-14 00:09:05,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 00:09:05,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:05,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 00:09:05,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-10-14 00:09:05,456 INFO L87 Difference]: Start difference. First operand 95 states and 96 transitions. Second operand 14 states. [2020-10-14 00:09:05,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:05,876 INFO L93 Difference]: Finished difference Result 174 states and 176 transitions. [2020-10-14 00:09:05,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 00:09:05,877 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-14 00:09:05,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:05,879 INFO L225 Difference]: With dead ends: 174 [2020-10-14 00:09:05,879 INFO L226 Difference]: Without dead ends: 98 [2020-10-14 00:09:05,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2020-10-14 00:09:05,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-14 00:09:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-10-14 00:09:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-14 00:09:05,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2020-10-14 00:09:05,894 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 92 [2020-10-14 00:09:05,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:05,895 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 98 transitions. [2020-10-14 00:09:05,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 00:09:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2020-10-14 00:09:05,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 00:09:05,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:05,896 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:05,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 00:09:05,897 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:05,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:05,897 INFO L82 PathProgramCache]: Analyzing trace with hash 748926612, now seen corresponding path program 15 times [2020-10-14 00:09:05,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:05,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285366396] [2020-10-14 00:09:05,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:05,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:07,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:07,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 00:09:07,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:07,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1208 [2020-10-14 00:09:07,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:07,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:07,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 00:09:07,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:09:07,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 00:09:07,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:08,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:08,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 00:09:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:08,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:09:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:08,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:08,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:08,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:08,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:08,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:09:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:08,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:09:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:08,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 24 proven. 184 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 00:09:08,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285366396] [2020-10-14 00:09:08,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:08,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-14 00:09:08,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159043206] [2020-10-14 00:09:08,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-14 00:09:08,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:08,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-14 00:09:08,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2020-10-14 00:09:08,339 INFO L87 Difference]: Start difference. First operand 97 states and 98 transitions. Second operand 30 states. [2020-10-14 00:09:09,794 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-10-14 00:09:11,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:11,757 INFO L93 Difference]: Finished difference Result 109 states and 110 transitions. [2020-10-14 00:09:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 00:09:11,764 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 94 [2020-10-14 00:09:11,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:11,765 INFO L225 Difference]: With dead ends: 109 [2020-10-14 00:09:11,765 INFO L226 Difference]: Without dead ends: 107 [2020-10-14 00:09:11,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=486, Invalid=3054, Unknown=0, NotChecked=0, Total=3540 [2020-10-14 00:09:11,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-14 00:09:11,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2020-10-14 00:09:11,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-14 00:09:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 106 transitions. [2020-10-14 00:09:11,776 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 106 transitions. Word has length 94 [2020-10-14 00:09:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:11,777 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 106 transitions. [2020-10-14 00:09:11,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-14 00:09:11,777 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 106 transitions. [2020-10-14 00:09:11,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 00:09:11,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:11,778 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:11,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 00:09:11,778 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:11,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:11,779 INFO L82 PathProgramCache]: Analyzing trace with hash -271010869, now seen corresponding path program 16 times [2020-10-14 00:09:11,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:11,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821580666] [2020-10-14 00:09:11,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:11,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 00:09:12,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 797 [2020-10-14 00:09:12,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 00:09:12,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:12,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 00:09:12,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:12,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:12,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:12,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:12,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:12,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:12,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 00:09:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:12,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:12,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:12,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:12,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:09:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:12,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:12,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:12,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:12,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:12,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:12,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:12,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:12,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:12,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:12,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:12,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:12,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:12,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:12,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:12,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:12,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:12,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:12,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:12,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:12,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:09:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:12,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:12,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:12,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:12,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:12,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:09:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:12,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:12,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:12,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:12,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:09:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:12,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:12,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:12,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:12,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:12,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:09:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 180 proven. 64 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 00:09:12,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821580666] [2020-10-14 00:09:12,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:12,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 00:09:12,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657878778] [2020-10-14 00:09:12,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 00:09:12,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:12,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 00:09:12,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:09:12,849 INFO L87 Difference]: Start difference. First operand 105 states and 106 transitions. Second operand 15 states. [2020-10-14 00:09:13,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:13,433 INFO L93 Difference]: Finished difference Result 192 states and 194 transitions. [2020-10-14 00:09:13,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 00:09:13,434 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 102 [2020-10-14 00:09:13,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:13,436 INFO L225 Difference]: With dead ends: 192 [2020-10-14 00:09:13,437 INFO L226 Difference]: Without dead ends: 108 [2020-10-14 00:09:13,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2020-10-14 00:09:13,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-14 00:09:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2020-10-14 00:09:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-14 00:09:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 108 transitions. [2020-10-14 00:09:13,465 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 108 transitions. Word has length 102 [2020-10-14 00:09:13,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:13,466 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 108 transitions. [2020-10-14 00:09:13,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 00:09:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 108 transitions. [2020-10-14 00:09:13,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 00:09:13,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:13,469 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:13,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 00:09:13,469 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:13,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:13,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1436145193, now seen corresponding path program 17 times [2020-10-14 00:09:13,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:13,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837709694] [2020-10-14 00:09:13,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:13,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:15,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:15,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 00:09:15,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:15,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1844 [2020-10-14 00:09:15,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:15,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 00:09:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:09:15,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 00:09:15,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:16,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:16,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:16,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:16,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:16,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 00:09:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:16,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 00:09:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:16,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:09:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:16,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 00:09:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:16,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 00:09:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:16,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 00:09:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:16,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:09:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:16,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 00:09:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:16,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 00:09:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 27 proven. 234 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 00:09:17,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837709694] [2020-10-14 00:09:17,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:17,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-14 00:09:17,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597039431] [2020-10-14 00:09:17,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-14 00:09:17,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:17,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-14 00:09:17,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 00:09:17,019 INFO L87 Difference]: Start difference. First operand 107 states and 108 transitions. Second operand 35 states. [2020-10-14 00:09:19,020 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2020-10-14 00:09:19,203 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2020-10-14 00:09:19,364 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2020-10-14 00:09:21,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:21,228 INFO L93 Difference]: Finished difference Result 119 states and 120 transitions. [2020-10-14 00:09:21,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-14 00:09:21,229 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 104 [2020-10-14 00:09:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:21,231 INFO L225 Difference]: With dead ends: 119 [2020-10-14 00:09:21,231 INFO L226 Difference]: Without dead ends: 117 [2020-10-14 00:09:21,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=584, Invalid=3706, Unknown=0, NotChecked=0, Total=4290 [2020-10-14 00:09:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-14 00:09:21,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2020-10-14 00:09:21,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-14 00:09:21,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 116 transitions. [2020-10-14 00:09:21,249 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 116 transitions. Word has length 104 [2020-10-14 00:09:21,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:21,250 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 116 transitions. [2020-10-14 00:09:21,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-14 00:09:21,250 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 116 transitions. [2020-10-14 00:09:21,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 00:09:21,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:21,251 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:21,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 00:09:21,252 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:21,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:21,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1477733984, now seen corresponding path program 18 times [2020-10-14 00:09:21,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:21,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479939973] [2020-10-14 00:09:21,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:21,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-14 00:09:22,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 986 [2020-10-14 00:09:22,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 00:09:22,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 00:09:22,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:22,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:22,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:22,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 00:09:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:22,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 00:09:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:22,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:09:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:22,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 00:09:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:22,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 00:09:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:22,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 00:09:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:22,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:09:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:22,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 00:09:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:22,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 00:09:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:22,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 00:09:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:22,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,481 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 220 proven. 81 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 00:09:22,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479939973] [2020-10-14 00:09:22,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:22,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 00:09:22,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098545705] [2020-10-14 00:09:22,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 00:09:22,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:22,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 00:09:22,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2020-10-14 00:09:22,483 INFO L87 Difference]: Start difference. First operand 115 states and 116 transitions. Second operand 16 states. [2020-10-14 00:09:23,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:23,006 INFO L93 Difference]: Finished difference Result 210 states and 212 transitions. [2020-10-14 00:09:23,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 00:09:23,008 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 112 [2020-10-14 00:09:23,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:23,009 INFO L225 Difference]: With dead ends: 210 [2020-10-14 00:09:23,009 INFO L226 Difference]: Without dead ends: 118 [2020-10-14 00:09:23,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=279, Invalid=533, Unknown=0, NotChecked=0, Total=812 [2020-10-14 00:09:23,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-14 00:09:23,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2020-10-14 00:09:23,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-14 00:09:23,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2020-10-14 00:09:23,021 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 112 [2020-10-14 00:09:23,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:23,021 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2020-10-14 00:09:23,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 00:09:23,021 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2020-10-14 00:09:23,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 00:09:23,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:23,023 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:23,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 00:09:23,023 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:23,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:23,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1280095038, now seen corresponding path program 19 times [2020-10-14 00:09:23,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:23,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033108904] [2020-10-14 00:09:23,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:23,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:24,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:24,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 00:09:24,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:24,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1765 [2020-10-14 00:09:24,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:24,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:24,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 00:09:24,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:09:24,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 00:09:24,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:26,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:26,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:26,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:26,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:09:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:26,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:09:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:09:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:09:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:09:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:09:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:09:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:09:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:09:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:09:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 30 proven. 290 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 00:09:26,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033108904] [2020-10-14 00:09:26,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:26,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-14 00:09:26,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302239112] [2020-10-14 00:09:26,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-14 00:09:26,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:26,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-14 00:09:26,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1296, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 00:09:26,693 INFO L87 Difference]: Start difference. First operand 117 states and 118 transitions. Second operand 38 states. [2020-10-14 00:09:28,856 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2020-10-14 00:09:29,142 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2020-10-14 00:09:29,436 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-10-14 00:09:29,717 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-10-14 00:09:31,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:31,572 INFO L93 Difference]: Finished difference Result 129 states and 130 transitions. [2020-10-14 00:09:31,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 00:09:31,573 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 114 [2020-10-14 00:09:31,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:31,576 INFO L225 Difference]: With dead ends: 129 [2020-10-14 00:09:31,576 INFO L226 Difference]: Without dead ends: 127 [2020-10-14 00:09:31,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=690, Invalid=4566, Unknown=0, NotChecked=0, Total=5256 [2020-10-14 00:09:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-14 00:09:31,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-14 00:09:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-14 00:09:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 126 transitions. [2020-10-14 00:09:31,589 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 126 transitions. Word has length 114 [2020-10-14 00:09:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:31,590 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 126 transitions. [2020-10-14 00:09:31,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-14 00:09:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 126 transitions. [2020-10-14 00:09:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-14 00:09:31,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:31,591 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:31,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 00:09:31,591 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:31,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:31,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1170774411, now seen corresponding path program 20 times [2020-10-14 00:09:31,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:31,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845229131] [2020-10-14 00:09:31,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:31,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 00:09:32,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-10-14 00:09:32,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 00:09:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 00:09:32,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:32,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:32,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:32,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:09:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:09:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:09:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:09:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:09:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:09:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:09:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:09:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:32,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:09:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:09:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:09:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:32,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:32,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:32,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:32,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:32,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:32,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:32,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 264 proven. 100 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 00:09:32,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845229131] [2020-10-14 00:09:32,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:32,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 00:09:32,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432994502] [2020-10-14 00:09:32,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 00:09:32,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:32,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 00:09:32,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2020-10-14 00:09:32,797 INFO L87 Difference]: Start difference. First operand 125 states and 126 transitions. Second operand 17 states. [2020-10-14 00:09:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:33,774 INFO L93 Difference]: Finished difference Result 228 states and 230 transitions. [2020-10-14 00:09:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 00:09:33,776 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 122 [2020-10-14 00:09:33,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:33,778 INFO L225 Difference]: With dead ends: 228 [2020-10-14 00:09:33,778 INFO L226 Difference]: Without dead ends: 128 [2020-10-14 00:09:33,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=609, Unknown=0, NotChecked=0, Total=930 [2020-10-14 00:09:33,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-14 00:09:33,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2020-10-14 00:09:33,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-14 00:09:33,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 128 transitions. [2020-10-14 00:09:33,790 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 128 transitions. Word has length 122 [2020-10-14 00:09:33,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:33,790 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 128 transitions. [2020-10-14 00:09:33,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 00:09:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 128 transitions. [2020-10-14 00:09:33,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 00:09:33,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:33,792 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:33,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 00:09:33,792 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:33,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:33,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1505907245, now seen corresponding path program 21 times [2020-10-14 00:09:33,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:33,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857383870] [2020-10-14 00:09:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:33,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:35,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:35,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 00:09:35,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1563 [2020-10-14 00:09:35,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:35,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 00:09:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:09:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 00:09:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:37,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:37,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:37,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:37,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 00:09:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:37,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:09:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:37,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 00:09:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:37,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 00:09:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:37,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 00:09:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:37,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 00:09:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:37,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 00:09:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:37,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 00:09:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:37,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 00:09:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:37,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 00:09:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:37,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 00:09:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:37,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:37,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:37,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:37,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:37,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:37,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:37,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:37,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:37,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:37,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:37,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 33 proven. 352 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 00:09:37,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857383870] [2020-10-14 00:09:37,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:37,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-14 00:09:37,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656951057] [2020-10-14 00:09:37,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-14 00:09:37,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:37,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-14 00:09:37,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1228, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 00:09:37,361 INFO L87 Difference]: Start difference. First operand 127 states and 128 transitions. Second operand 37 states. [2020-10-14 00:09:38,837 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2020-10-14 00:09:39,117 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-10-14 00:09:39,435 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2020-10-14 00:09:39,769 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2020-10-14 00:09:40,097 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2020-10-14 00:09:40,415 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-14 00:09:42,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:42,413 INFO L93 Difference]: Finished difference Result 139 states and 140 transitions. [2020-10-14 00:09:42,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-14 00:09:42,414 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 124 [2020-10-14 00:09:42,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:42,416 INFO L225 Difference]: With dead ends: 139 [2020-10-14 00:09:42,416 INFO L226 Difference]: Without dead ends: 137 [2020-10-14 00:09:42,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=761, Invalid=4939, Unknown=0, NotChecked=0, Total=5700 [2020-10-14 00:09:42,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-14 00:09:42,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2020-10-14 00:09:42,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-14 00:09:42,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 136 transitions. [2020-10-14 00:09:42,432 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 136 transitions. Word has length 124 [2020-10-14 00:09:42,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:42,432 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 136 transitions. [2020-10-14 00:09:42,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-14 00:09:42,433 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 136 transitions. [2020-10-14 00:09:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 00:09:42,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:42,434 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:42,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 00:09:42,434 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:42,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:42,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1147337738, now seen corresponding path program 22 times [2020-10-14 00:09:42,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:42,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464995324] [2020-10-14 00:09:42,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:42,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 00:09:43,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-10-14 00:09:43,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 00:09:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 00:09:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:43,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:43,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:43,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:43,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:43,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:43,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 00:09:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:43,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:43,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:09:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:43,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:43,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 00:09:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:43,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:43,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 00:09:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:43,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:43,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 00:09:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:43,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:43,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 00:09:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:43,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:43,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 00:09:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:43,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:43,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 00:09:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:43,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:43,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 00:09:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:43,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:43,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 00:09:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:43,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:43,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 00:09:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:43,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:43,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 00:09:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:43,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:43,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:43,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:43,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:43,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:43,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:43,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:43,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:43,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:43,809 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 267 proven. 166 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 00:09:43,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464995324] [2020-10-14 00:09:43,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:43,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 00:09:43,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789244386] [2020-10-14 00:09:43,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 00:09:43,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:43,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 00:09:43,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=213, Unknown=0, NotChecked=0, Total=342 [2020-10-14 00:09:43,812 INFO L87 Difference]: Start difference. First operand 135 states and 136 transitions. Second operand 19 states. [2020-10-14 00:09:44,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:44,708 INFO L93 Difference]: Finished difference Result 246 states and 248 transitions. [2020-10-14 00:09:44,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 00:09:44,709 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 132 [2020-10-14 00:09:44,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:44,710 INFO L225 Difference]: With dead ends: 246 [2020-10-14 00:09:44,710 INFO L226 Difference]: Without dead ends: 138 [2020-10-14 00:09:44,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=354, Invalid=702, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 00:09:44,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-14 00:09:44,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2020-10-14 00:09:44,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-14 00:09:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 138 transitions. [2020-10-14 00:09:44,726 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 138 transitions. Word has length 132 [2020-10-14 00:09:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:44,726 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 138 transitions. [2020-10-14 00:09:44,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 00:09:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 138 transitions. [2020-10-14 00:09:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 00:09:44,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:44,728 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:44,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 00:09:44,728 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:44,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:44,728 INFO L82 PathProgramCache]: Analyzing trace with hash 2054563304, now seen corresponding path program 23 times [2020-10-14 00:09:44,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:44,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346519381] [2020-10-14 00:09:44,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:44,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:46,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:46,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 00:09:46,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:46,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2009 [2020-10-14 00:09:46,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:46,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:46,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 00:09:46,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:09:46,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 00:09:46,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:49,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:49,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:09:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:49,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:49,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:49,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:49,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:49,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:09:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:49,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:09:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:49,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:09:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:49,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:49,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:09:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:49,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:09:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:49,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:09:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:49,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:09:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:49,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:49,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:49,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:49,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:49,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 36 proven. 420 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 00:09:49,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346519381] [2020-10-14 00:09:49,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:49,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-14 00:09:49,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724265400] [2020-10-14 00:09:49,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-14 00:09:49,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:49,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-14 00:09:49,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1600, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 00:09:49,222 INFO L87 Difference]: Start difference. First operand 137 states and 138 transitions. Second operand 42 states. [2020-10-14 00:09:50,998 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-14 00:09:51,305 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-10-14 00:09:51,630 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2020-10-14 00:09:51,984 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2020-10-14 00:09:52,367 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2020-10-14 00:09:52,762 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2020-10-14 00:09:53,134 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-14 00:09:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:55,960 INFO L93 Difference]: Finished difference Result 149 states and 150 transitions. [2020-10-14 00:09:55,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 00:09:55,963 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 134 [2020-10-14 00:09:55,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:55,965 INFO L225 Difference]: With dead ends: 149 [2020-10-14 00:09:55,965 INFO L226 Difference]: Without dead ends: 147 [2020-10-14 00:09:55,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=904, Invalid=6068, Unknown=0, NotChecked=0, Total=6972 [2020-10-14 00:09:55,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-14 00:09:55,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2020-10-14 00:09:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-14 00:09:55,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 146 transitions. [2020-10-14 00:09:55,982 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 146 transitions. Word has length 134 [2020-10-14 00:09:55,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:55,983 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 146 transitions. [2020-10-14 00:09:55,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-14 00:09:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 146 transitions. [2020-10-14 00:09:55,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-14 00:09:55,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:55,985 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:55,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 00:09:55,985 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:55,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:55,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1639936225, now seen corresponding path program 24 times [2020-10-14 00:09:55,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:55,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325818531] [2020-10-14 00:09:55,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 00:09:57,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1150 [2020-10-14 00:09:57,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 00:09:57,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:57,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 00:09:57,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:57,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:57,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:57,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:09:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:09:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:09:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:09:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:09:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:09:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:09:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:57,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:09:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:09:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 00:09:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:57,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:57,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:57,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:57,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:57,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:57,635 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 364 proven. 144 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 00:09:57,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325818531] [2020-10-14 00:09:57,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:57,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 00:09:57,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670870162] [2020-10-14 00:09:57,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 00:09:57,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:57,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 00:09:57,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2020-10-14 00:09:57,638 INFO L87 Difference]: Start difference. First operand 145 states and 146 transitions. Second operand 19 states. [2020-10-14 00:09:59,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:59,254 INFO L93 Difference]: Finished difference Result 264 states and 266 transitions. [2020-10-14 00:09:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 00:09:59,255 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 142 [2020-10-14 00:09:59,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:59,258 INFO L225 Difference]: With dead ends: 264 [2020-10-14 00:09:59,258 INFO L226 Difference]: Without dead ends: 148 [2020-10-14 00:09:59,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=414, Invalid=776, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 00:09:59,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-14 00:09:59,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2020-10-14 00:09:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-14 00:09:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2020-10-14 00:09:59,295 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 142 [2020-10-14 00:09:59,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:59,296 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2020-10-14 00:09:59,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 00:09:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2020-10-14 00:09:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-14 00:09:59,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:59,303 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:59,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 00:09:59,303 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:59,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:59,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1468496765, now seen corresponding path program 25 times [2020-10-14 00:09:59,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:59,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022006359] [2020-10-14 00:09:59,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:59,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:02,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:02,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 00:10:02,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2697 [2020-10-14 00:10:02,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:02,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-14 00:10:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:10:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 00:10:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:04,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:04,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:04,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 00:10:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:04,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:10:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:04,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 00:10:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 00:10:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:04,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 00:10:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:04,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:10:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:04,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 00:10:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:04,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 00:10:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:04,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 00:10:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:04,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 00:10:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:04,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 00:10:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:04,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 00:10:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:04,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 00:10:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:04,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:04,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:04,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:04,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:04,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:04,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:04,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:04,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 39 proven. 494 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 00:10:04,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022006359] [2020-10-14 00:10:04,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:04,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-14 00:10:04,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862622562] [2020-10-14 00:10:04,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-14 00:10:04,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:04,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-14 00:10:04,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1924, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 00:10:04,583 INFO L87 Difference]: Start difference. First operand 147 states and 148 transitions. Second operand 46 states. [2020-10-14 00:10:06,877 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-10-14 00:10:07,262 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2020-10-14 00:10:07,660 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-10-14 00:10:08,080 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2020-10-14 00:10:08,524 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 90 [2020-10-14 00:10:08,973 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 89 [2020-10-14 00:10:09,417 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-14 00:10:12,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:12,181 INFO L93 Difference]: Finished difference Result 159 states and 160 transitions. [2020-10-14 00:10:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-14 00:10:12,182 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 144 [2020-10-14 00:10:12,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:12,184 INFO L225 Difference]: With dead ends: 159 [2020-10-14 00:10:12,184 INFO L226 Difference]: Without dead ends: 157 [2020-10-14 00:10:12,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1455 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1064, Invalid=7126, Unknown=0, NotChecked=0, Total=8190 [2020-10-14 00:10:12,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-14 00:10:12,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2020-10-14 00:10:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-14 00:10:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 156 transitions. [2020-10-14 00:10:12,206 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 156 transitions. Word has length 144 [2020-10-14 00:10:12,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:12,206 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 156 transitions. [2020-10-14 00:10:12,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-14 00:10:12,206 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 156 transitions. [2020-10-14 00:10:12,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-14 00:10:12,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:12,208 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:12,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 00:10:12,208 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:12,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:12,208 INFO L82 PathProgramCache]: Analyzing trace with hash -553549900, now seen corresponding path program 26 times [2020-10-14 00:10:12,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:12,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488761555] [2020-10-14 00:10:12,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:12,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 00:10:13,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1323 [2020-10-14 00:10:13,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 00:10:13,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:10:13,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 00:10:13,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:13,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:13,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:13,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 00:10:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:10:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 00:10:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 00:10:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 00:10:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:10:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 00:10:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 00:10:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:10:13,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 00:10:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 00:10:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 00:10:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 00:10:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 00:10:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 00:10:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:13,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:13,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:13,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:13,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:13,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:13,894 INFO L134 CoverageAnalysis]: Checked inductivity of 953 backedges. 420 proven. 169 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-14 00:10:13,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488761555] [2020-10-14 00:10:13,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:13,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 00:10:13,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70345967] [2020-10-14 00:10:13,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 00:10:13,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:13,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 00:10:13,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=223, Unknown=0, NotChecked=0, Total=380 [2020-10-14 00:10:13,896 INFO L87 Difference]: Start difference. First operand 155 states and 156 transitions. Second operand 20 states. [2020-10-14 00:10:15,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:15,060 INFO L93 Difference]: Finished difference Result 282 states and 284 transitions. [2020-10-14 00:10:15,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 00:10:15,061 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 152 [2020-10-14 00:10:15,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:15,062 INFO L225 Difference]: With dead ends: 282 [2020-10-14 00:10:15,063 INFO L226 Difference]: Without dead ends: 158 [2020-10-14 00:10:15,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=465, Invalid=867, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 00:10:15,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-14 00:10:15,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2020-10-14 00:10:15,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-14 00:10:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 158 transitions. [2020-10-14 00:10:15,077 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 158 transitions. Word has length 152 [2020-10-14 00:10:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:15,077 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 158 transitions. [2020-10-14 00:10:15,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 00:10:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 158 transitions. [2020-10-14 00:10:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-14 00:10:15,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:15,078 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:15,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 00:10:15,079 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:15,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:15,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1182069102, now seen corresponding path program 27 times [2020-10-14 00:10:15,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:15,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224325378] [2020-10-14 00:10:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:17,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:17,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 00:10:17,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:17,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2874 [2020-10-14 00:10:17,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:17,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:17,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-14 00:10:17,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:10:17,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 00:10:17,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:21,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:21,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:21,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:21,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:10:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:10:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:10:21,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:10:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:21,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:10:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:21,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:10:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:21,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:10:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:10:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:10:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:10:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:10:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:10:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:10:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 00:10:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 00:10:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:21,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:21,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:21,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:21,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:21,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:21,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:21,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:21,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:21,760 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 42 proven. 574 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-14 00:10:21,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224325378] [2020-10-14 00:10:21,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:21,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-14 00:10:21,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076765068] [2020-10-14 00:10:21,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-14 00:10:21,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:21,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-14 00:10:21,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1936, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 00:10:21,762 INFO L87 Difference]: Start difference. First operand 157 states and 158 transitions. Second operand 46 states. [2020-10-14 00:10:23,669 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-10-14 00:10:24,096 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-10-14 00:10:24,513 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2020-10-14 00:10:24,947 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2020-10-14 00:10:25,437 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2020-10-14 00:10:25,939 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-10-14 00:10:26,444 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2020-10-14 00:10:27,007 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 96 [2020-10-14 00:10:27,528 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 95 [2020-10-14 00:10:28,066 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2020-10-14 00:10:33,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:33,263 INFO L93 Difference]: Finished difference Result 169 states and 170 transitions. [2020-10-14 00:10:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-14 00:10:33,264 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 154 [2020-10-14 00:10:33,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:33,266 INFO L225 Difference]: With dead ends: 169 [2020-10-14 00:10:33,266 INFO L226 Difference]: Without dead ends: 167 [2020-10-14 00:10:33,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1119, Invalid=7437, Unknown=0, NotChecked=0, Total=8556 [2020-10-14 00:10:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-14 00:10:33,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2020-10-14 00:10:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-14 00:10:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 166 transitions. [2020-10-14 00:10:33,285 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 166 transitions. Word has length 154 [2020-10-14 00:10:33,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:33,286 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 166 transitions. [2020-10-14 00:10:33,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-14 00:10:33,286 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 166 transitions. [2020-10-14 00:10:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-14 00:10:33,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:33,287 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:33,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 00:10:33,288 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:33,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:33,288 INFO L82 PathProgramCache]: Analyzing trace with hash 56569289, now seen corresponding path program 28 times [2020-10-14 00:10:33,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:33,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757420459] [2020-10-14 00:10:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:33,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:35,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:35,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-14 00:10:35,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:35,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2413 [2020-10-14 00:10:35,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:35,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 00:10:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:10:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 00:10:35,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:10:36,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:36,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:36,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:10:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:10:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:36,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:10:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:10:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:10:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:10:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:10:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:10:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:10:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:10:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:10:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:10:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 00:10:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 00:10:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 00:10:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:36,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:36,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:36,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:36,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:36,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:36,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:36,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:36,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:36,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:36,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:36,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 480 proven. 196 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-14 00:10:36,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757420459] [2020-10-14 00:10:36,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:36,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 00:10:36,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054511093] [2020-10-14 00:10:36,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 00:10:36,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:36,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 00:10:36,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=245, Unknown=0, NotChecked=0, Total=420 [2020-10-14 00:10:36,239 INFO L87 Difference]: Start difference. First operand 165 states and 166 transitions. Second operand 21 states. [2020-10-14 00:10:37,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:37,508 INFO L93 Difference]: Finished difference Result 300 states and 302 transitions. [2020-10-14 00:10:37,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-14 00:10:37,509 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 162 [2020-10-14 00:10:37,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:37,511 INFO L225 Difference]: With dead ends: 300 [2020-10-14 00:10:37,511 INFO L226 Difference]: Without dead ends: 168 [2020-10-14 00:10:37,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=519, Invalid=963, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 00:10:37,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-14 00:10:37,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-10-14 00:10:37,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-14 00:10:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 168 transitions. [2020-10-14 00:10:37,528 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 168 transitions. Word has length 162 [2020-10-14 00:10:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:37,528 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 168 transitions. [2020-10-14 00:10:37,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 00:10:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 168 transitions. [2020-10-14 00:10:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-14 00:10:37,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:37,529 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:37,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 00:10:37,530 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:37,530 INFO L82 PathProgramCache]: Analyzing trace with hash 2244391, now seen corresponding path program 29 times [2020-10-14 00:10:37,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:37,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763202043] [2020-10-14 00:10:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:37,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:41,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:41,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 00:10:41,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:41,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4001 [2020-10-14 00:10:41,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:41,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-14 00:10:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:10:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 00:10:41,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:44,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:44,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:10:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:44,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 00:10:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 00:10:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 00:10:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 00:10:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 00:10:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 00:10:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 00:10:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 00:10:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 00:10:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:44,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 00:10:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-14 00:10:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:44,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-14 00:10:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:44,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 00:10:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 00:10:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:44,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:44,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:44,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:44,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 45 proven. 660 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-14 00:10:44,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763202043] [2020-10-14 00:10:44,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:44,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-14 00:10:44,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070586088] [2020-10-14 00:10:44,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-14 00:10:44,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:44,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-14 00:10:44,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1392, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 00:10:44,716 INFO L87 Difference]: Start difference. First operand 167 states and 168 transitions. Second operand 39 states. [2020-10-14 00:10:47,009 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-14 00:10:47,229 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-14 00:10:47,489 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-14 00:10:47,731 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-10-14 00:10:47,996 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-14 00:10:48,268 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-14 00:10:48,584 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2020-10-14 00:10:48,860 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-14 00:10:49,179 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-10-14 00:10:49,479 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-10-14 00:10:49,812 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2020-10-14 00:10:50,111 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2020-10-14 00:10:50,468 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-14 00:10:50,787 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2020-10-14 00:10:51,183 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 95 [2020-10-14 00:10:51,557 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 99 [2020-10-14 00:10:52,026 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 101 [2020-10-14 00:10:52,473 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 104 [2020-10-14 00:10:52,840 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 102 [2020-10-14 00:10:54,216 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-14 00:10:54,623 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-10-14 00:10:55,048 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-10-14 00:10:55,439 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-14 00:10:55,868 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-14 00:10:56,279 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-10-14 00:10:56,698 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-10-14 00:10:57,102 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-10-14 00:10:57,503 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-10-14 00:10:57,925 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-14 00:10:58,324 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-14 00:10:58,743 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-10-14 00:10:59,118 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-10-14 00:10:59,360 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-10-14 00:11:00,019 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-10-14 00:11:00,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:11:00,158 INFO L93 Difference]: Finished difference Result 179 states and 180 transitions. [2020-10-14 00:11:00,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-14 00:11:00,160 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 164 [2020-10-14 00:11:00,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:11:00,162 INFO L225 Difference]: With dead ends: 179 [2020-10-14 00:11:00,162 INFO L226 Difference]: Without dead ends: 177 [2020-10-14 00:11:00,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 33 SyntacticMatches, 14 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1219 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=1189, Invalid=6821, Unknown=0, NotChecked=0, Total=8010 [2020-10-14 00:11:00,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-14 00:11:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2020-10-14 00:11:00,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-14 00:11:00,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 176 transitions. [2020-10-14 00:11:00,186 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 176 transitions. Word has length 164 [2020-10-14 00:11:00,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:11:00,187 INFO L479 AbstractCegarLoop]: Abstraction has 175 states and 176 transitions. [2020-10-14 00:11:00,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-14 00:11:00,187 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 176 transitions. [2020-10-14 00:11:00,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-14 00:11:00,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:11:00,189 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:11:00,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 00:11:00,189 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:11:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:11:00,189 INFO L82 PathProgramCache]: Analyzing trace with hash -476382882, now seen corresponding path program 30 times [2020-10-14 00:11:00,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:11:00,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378975936] [2020-10-14 00:11:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:11:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:00,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:02,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:02,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-14 00:11:02,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:02,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2736 [2020-10-14 00:11:02,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:02,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:02,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 00:11:02,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:11:02,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-14 00:11:02,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:11:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:11:03,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:11:03,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:11:03,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:11:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 00:11:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 00:11:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 00:11:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 00:11:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 00:11:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 00:11:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 00:11:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 00:11:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-14 00:11:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 00:11:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-14 00:11:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:11:03,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-14 00:11:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 00:11:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 00:11:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-14 00:11:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:03,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:03,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:03,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:03,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:03,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:03,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:03,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:03,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:03,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:03,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:03,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:03,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 544 proven. 225 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-14 00:11:03,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378975936] [2020-10-14 00:11:03,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:11:03,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 00:11:03,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105926793] [2020-10-14 00:11:03,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 00:11:03,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:11:03,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 00:11:03,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=268, Unknown=0, NotChecked=0, Total=462 [2020-10-14 00:11:03,447 INFO L87 Difference]: Start difference. First operand 175 states and 176 transitions. Second operand 22 states. [2020-10-14 00:11:05,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:11:05,122 INFO L93 Difference]: Finished difference Result 318 states and 320 transitions. [2020-10-14 00:11:05,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 00:11:05,124 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 172 [2020-10-14 00:11:05,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:11:05,126 INFO L225 Difference]: With dead ends: 318 [2020-10-14 00:11:05,126 INFO L226 Difference]: Without dead ends: 178 [2020-10-14 00:11:05,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=576, Invalid=1064, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 00:11:05,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-14 00:11:05,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2020-10-14 00:11:05,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-14 00:11:05,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 178 transitions. [2020-10-14 00:11:05,147 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 178 transitions. Word has length 172 [2020-10-14 00:11:05,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:11:05,147 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 178 transitions. [2020-10-14 00:11:05,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 00:11:05,148 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 178 transitions. [2020-10-14 00:11:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-14 00:11:05,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:11:05,150 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:11:05,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 00:11:05,150 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:11:05,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:11:05,150 INFO L82 PathProgramCache]: Analyzing trace with hash -462000836, now seen corresponding path program 31 times [2020-10-14 00:11:05,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:11:05,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775917682] [2020-10-14 00:11:05,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:11:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:05,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:10,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:10,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-14 00:11:10,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:10,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4870 [2020-10-14 00:11:10,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:10,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:10,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-14 00:11:10,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:11:10,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-14 00:11:10,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:11:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:11:16,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:11:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:11:16,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:11:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:11:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:11:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:11:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:16,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:11:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:16,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:11:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:11:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:11:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:11:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:11:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:11:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 00:11:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:11:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:11:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 00:11:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 00:11:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:16,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:16,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:16,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:16,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:16,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:16,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 48 proven. 752 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-14 00:11:16,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775917682] [2020-10-14 00:11:16,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:11:16,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2020-10-14 00:11:16,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273159075] [2020-10-14 00:11:16,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-10-14 00:11:16,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:11:16,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-10-14 00:11:16,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=2498, Unknown=0, NotChecked=0, Total=2652 [2020-10-14 00:11:16,332 INFO L87 Difference]: Start difference. First operand 177 states and 178 transitions. Second operand 52 states. [2020-10-14 00:11:17,917 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2020-10-14 00:11:18,448 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-14 00:11:18,999 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2020-10-14 00:11:19,620 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-10-14 00:11:20,212 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-10-14 00:11:20,840 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2020-10-14 00:11:21,495 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2020-10-14 00:11:22,166 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2020-10-14 00:11:22,862 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 89 [2020-10-14 00:11:23,599 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 95 [2020-10-14 00:11:23,877 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 00:11:24,338 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 101 [2020-10-14 00:11:24,603 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 00:11:25,121 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 107 [2020-10-14 00:11:25,416 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 00:11:25,977 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 106 [2020-10-14 00:11:26,296 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-14 00:11:26,749 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-14 00:11:33,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:11:33,502 INFO L93 Difference]: Finished difference Result 189 states and 190 transitions. [2020-10-14 00:11:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-10-14 00:11:33,504 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 174 [2020-10-14 00:11:33,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:11:33,509 INFO L225 Difference]: With dead ends: 189 [2020-10-14 00:11:33,509 INFO L226 Difference]: Without dead ends: 187 [2020-10-14 00:11:33,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=1433, Invalid=9487, Unknown=0, NotChecked=0, Total=10920 [2020-10-14 00:11:33,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-14 00:11:33,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2020-10-14 00:11:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-14 00:11:33,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 186 transitions. [2020-10-14 00:11:33,534 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 186 transitions. Word has length 174 [2020-10-14 00:11:33,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:11:33,534 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 186 transitions. [2020-10-14 00:11:33,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-10-14 00:11:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 186 transitions. [2020-10-14 00:11:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-14 00:11:33,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:11:33,535 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:11:33,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 00:11:33,536 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:11:33,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:11:33,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1451343245, now seen corresponding path program 32 times [2020-10-14 00:11:33,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:11:33,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224522162] [2020-10-14 00:11:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:11:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 00:11:36,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2438 [2020-10-14 00:11:36,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 00:11:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:11:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 00:11:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:11:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:11:36,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:11:36,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:11:36,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:11:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:11:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:11:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:36,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:11:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:11:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:11:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:11:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:11:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:11:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:11:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:11:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 00:11:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:11:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:11:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 00:11:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 00:11:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-14 00:11:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:36,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:36,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:36,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:36,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:36,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:36,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 612 proven. 256 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-14 00:11:36,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224522162] [2020-10-14 00:11:36,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:11:36,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 00:11:36,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936202857] [2020-10-14 00:11:36,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 00:11:36,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:11:36,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 00:11:36,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=292, Unknown=0, NotChecked=0, Total=506 [2020-10-14 00:11:36,720 INFO L87 Difference]: Start difference. First operand 185 states and 186 transitions. Second operand 23 states. [2020-10-14 00:11:39,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:11:39,207 INFO L93 Difference]: Finished difference Result 336 states and 338 transitions. [2020-10-14 00:11:39,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-14 00:11:39,210 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 182 [2020-10-14 00:11:39,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:11:39,212 INFO L225 Difference]: With dead ends: 336 [2020-10-14 00:11:39,212 INFO L226 Difference]: Without dead ends: 188 [2020-10-14 00:11:39,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=636, Invalid=1170, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 00:11:39,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-14 00:11:39,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 187. [2020-10-14 00:11:39,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-14 00:11:39,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 188 transitions. [2020-10-14 00:11:39,233 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 188 transitions. Word has length 182 [2020-10-14 00:11:39,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:11:39,234 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 188 transitions. [2020-10-14 00:11:39,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 00:11:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 188 transitions. [2020-10-14 00:11:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-14 00:11:39,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:11:39,235 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:11:39,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-14 00:11:39,236 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:11:39,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:11:39,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1866004689, now seen corresponding path program 33 times [2020-10-14 00:11:39,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:11:39,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85429821] [2020-10-14 00:11:39,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:11:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:44,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:44,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 00:11:44,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:44,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 00:11:44,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:44,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-10-14 00:11:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:11:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-14 00:11:44,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:11:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:11:53,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:11:53,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:11:53,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:11:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 00:11:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 00:11:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:53,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 00:11:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:53,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:11:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 00:11:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 00:11:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 00:11:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 00:11:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 00:11:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 00:11:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 00:11:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 00:11:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 00:11:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-14 00:11:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-14 00:11:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-14 00:11:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:53,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:53,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:53,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:53,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:53,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:53,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:53,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:53,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 51 proven. 850 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-14 00:11:53,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85429821] [2020-10-14 00:11:53,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:11:53,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2020-10-14 00:11:53,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808991050] [2020-10-14 00:11:53,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-10-14 00:11:53,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:11:53,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-10-14 00:11:53,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=3242, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 00:11:53,300 INFO L87 Difference]: Start difference. First operand 187 states and 188 transitions. Second operand 59 states. [2020-10-14 00:11:54,429 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2020-10-14 00:11:55,213 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2020-10-14 00:11:55,984 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2020-10-14 00:11:56,820 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-10-14 00:11:57,621 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-10-14 00:11:58,452 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-10-14 00:11:59,310 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2020-10-14 00:12:00,263 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2020-10-14 00:12:01,160 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2020-10-14 00:12:02,058 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 85 [2020-10-14 00:12:02,415 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-14 00:12:02,992 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 90 [2020-10-14 00:12:03,381 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-14 00:12:03,961 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 96 [2020-10-14 00:12:04,316 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 00:12:04,908 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 102 [2020-10-14 00:12:05,280 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 00:12:05,879 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 108 [2020-10-14 00:12:06,313 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 00:12:07,053 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2020-10-14 00:12:07,455 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-14 00:12:08,178 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 112 [2020-10-14 00:12:08,625 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-14 00:12:09,244 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-10-14 00:12:18,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:12:18,029 INFO L93 Difference]: Finished difference Result 199 states and 200 transitions. [2020-10-14 00:12:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-14 00:12:18,032 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 184 [2020-10-14 00:12:18,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:12:18,034 INFO L225 Difference]: With dead ends: 199 [2020-10-14 00:12:18,034 INFO L226 Difference]: Without dead ends: 197 [2020-10-14 00:12:18,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1394 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=1621, Invalid=11489, Unknown=0, NotChecked=0, Total=13110 [2020-10-14 00:12:18,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-14 00:12:18,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2020-10-14 00:12:18,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-14 00:12:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 196 transitions. [2020-10-14 00:12:18,056 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 196 transitions. Word has length 184 [2020-10-14 00:12:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:12:18,057 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 196 transitions. [2020-10-14 00:12:18,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-10-14 00:12:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 196 transitions. [2020-10-14 00:12:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-14 00:12:18,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:12:18,059 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:12:18,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-14 00:12:18,059 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:12:18,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:12:18,059 INFO L82 PathProgramCache]: Analyzing trace with hash -967153400, now seen corresponding path program 34 times [2020-10-14 00:12:18,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:12:18,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757508621] [2020-10-14 00:12:18,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:12:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:18,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:20,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:20,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-14 00:12:20,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:20,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2901 [2020-10-14 00:12:20,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:20,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:20,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 00:12:20,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:12:20,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 00:12:20,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:12:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:12:21,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:12:21,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:12:21,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:12:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 00:12:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 00:12:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 00:12:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:12:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 00:12:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 00:12:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 00:12:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 00:12:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 00:12:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 00:12:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 00:12:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 00:12:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 00:12:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-14 00:12:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-14 00:12:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-14 00:12:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-14 00:12:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:21,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:21,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:21,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:21,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:21,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:21,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:21,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:21,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1585 backedges. 684 proven. 289 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-10-14 00:12:21,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757508621] [2020-10-14 00:12:21,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:12:21,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 00:12:21,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954168661] [2020-10-14 00:12:21,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 00:12:21,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:12:21,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 00:12:21,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=317, Unknown=0, NotChecked=0, Total=552 [2020-10-14 00:12:21,872 INFO L87 Difference]: Start difference. First operand 195 states and 196 transitions. Second operand 24 states. [2020-10-14 00:12:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:12:24,814 INFO L93 Difference]: Finished difference Result 354 states and 356 transitions. [2020-10-14 00:12:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 00:12:24,818 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 192 [2020-10-14 00:12:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:12:24,820 INFO L225 Difference]: With dead ends: 354 [2020-10-14 00:12:24,820 INFO L226 Difference]: Without dead ends: 198 [2020-10-14 00:12:24,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=699, Invalid=1281, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 00:12:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-14 00:12:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 197. [2020-10-14 00:12:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-14 00:12:24,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 198 transitions. [2020-10-14 00:12:24,842 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 198 transitions. Word has length 192 [2020-10-14 00:12:24,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:12:24,842 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 198 transitions. [2020-10-14 00:12:24,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 00:12:24,842 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 198 transitions. [2020-10-14 00:12:24,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-14 00:12:24,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:12:24,844 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:12:24,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-14 00:12:24,844 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:12:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:12:24,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1856192998, now seen corresponding path program 35 times [2020-10-14 00:12:24,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:12:24,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303571852] [2020-10-14 00:12:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:12:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:24,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:29,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:29,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 00:12:29,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:29,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 00:12:29,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:29,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 60 [2020-10-14 00:12:29,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 00:12:29,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 00:12:29,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0