/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/eca-rers2012/Problem04_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 01:05:35,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 01:05:35,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 01:05:35,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 01:05:35,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 01:05:35,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 01:05:35,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 01:05:35,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 01:05:35,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 01:05:35,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 01:05:35,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 01:05:35,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 01:05:35,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 01:05:35,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 01:05:35,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 01:05:35,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 01:05:35,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 01:05:35,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 01:05:35,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 01:05:35,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 01:05:35,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 01:05:35,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 01:05:35,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 01:05:35,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 01:05:35,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 01:05:35,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 01:05:35,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 01:05:35,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 01:05:35,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 01:05:35,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 01:05:35,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 01:05:35,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 01:05:35,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 01:05:35,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 01:05:35,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 01:05:35,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 01:05:35,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 01:05:35,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 01:05:35,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 01:05:35,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 01:05:35,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 01:05:35,380 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 01:05:35,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 01:05:35,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 01:05:35,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 01:05:35,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 01:05:35,404 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 01:05:35,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 01:05:35,405 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 01:05:35,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 01:05:35,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 01:05:35,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 01:05:35,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 01:05:35,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 01:05:35,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 01:05:35,406 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 01:05:35,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 01:05:35,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 01:05:35,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 01:05:35,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 01:05:35,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 01:05:35,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 01:05:35,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 01:05:35,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:05:35,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 01:05:35,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 01:05:35,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 01:05:35,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 01:05:35,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 01:05:35,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 01:05:35,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 01:05:35,410 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 01:05:35,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 01:05:35,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 01:05:35,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 01:05:35,752 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 01:05:35,752 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 01:05:35,753 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label33.c [2020-10-14 01:05:35,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d36473d5/55021bd560df4bdcb6d0b47a59d6d82f/FLAG33baf40f4 [2020-10-14 01:05:36,722 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 01:05:36,723 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label33.c [2020-10-14 01:05:36,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d36473d5/55021bd560df4bdcb6d0b47a59d6d82f/FLAG33baf40f4 [2020-10-14 01:05:37,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d36473d5/55021bd560df4bdcb6d0b47a59d6d82f [2020-10-14 01:05:37,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 01:05:37,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 01:05:37,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 01:05:37,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 01:05:37,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 01:05:37,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:05:37" (1/1) ... [2020-10-14 01:05:37,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e0ef97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:37, skipping insertion in model container [2020-10-14 01:05:37,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:05:37" (1/1) ... [2020-10-14 01:05:37,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 01:05:37,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 01:05:38,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:05:38,905 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 01:05:39,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:05:39,664 INFO L208 MainTranslator]: Completed translation [2020-10-14 01:05:39,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39 WrapperNode [2020-10-14 01:05:39,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 01:05:39,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 01:05:39,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 01:05:39,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 01:05:39,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39" (1/1) ... [2020-10-14 01:05:39,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39" (1/1) ... [2020-10-14 01:05:39,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39" (1/1) ... [2020-10-14 01:05:39,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39" (1/1) ... [2020-10-14 01:05:39,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39" (1/1) ... [2020-10-14 01:05:39,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39" (1/1) ... [2020-10-14 01:05:39,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39" (1/1) ... [2020-10-14 01:05:39,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 01:05:39,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 01:05:39,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 01:05:39,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 01:05:39,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39" (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 01:05:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 01:05:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 01:05:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 01:05:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 01:05:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 01:05:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 01:05:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 01:05:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 01:05:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 01:05:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 01:05:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 01:05:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 01:05:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 01:05:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 01:05:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 01:05:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 01:05:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 01:05:44,626 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 01:05:44,626 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 01:05:44,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:05:44 BoogieIcfgContainer [2020-10-14 01:05:44,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 01:05:44,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 01:05:44,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 01:05:44,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 01:05:44,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:05:37" (1/3) ... [2020-10-14 01:05:44,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145c5512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:05:44, skipping insertion in model container [2020-10-14 01:05:44,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:05:39" (2/3) ... [2020-10-14 01:05:44,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145c5512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:05:44, skipping insertion in model container [2020-10-14 01:05:44,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:05:44" (3/3) ... [2020-10-14 01:05:44,646 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label33.c [2020-10-14 01:05:44,656 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 01:05:44,665 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 01:05:44,678 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 01:05:44,703 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 01:05:44,703 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 01:05:44,703 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 01:05:44,703 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 01:05:44,703 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 01:05:44,703 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 01:05:44,703 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 01:05:44,703 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 01:05:44,739 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2020-10-14 01:05:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2020-10-14 01:05:44,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:05:44,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:05:44,787 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:05:44,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:05:44,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1119883053, now seen corresponding path program 1 times [2020-10-14 01:05:44,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:05:44,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173860107] [2020-10-14 01:05:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:05:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:45,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:48,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:50,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:50,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 838 [2020-10-14 01:05:50,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:05:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 01:05:50,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:50,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 01:05:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:05:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 832 [2020-10-14 01:05:50,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 01:05:51,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:05:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:05:51,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:05:51,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:05:51,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:05:51,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:05:51,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 01:05:51,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:05:51,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:05:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:05:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:05:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:05:51,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:05:53,332 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 01:05:53,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173860107] [2020-10-14 01:05:53,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:05:53,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 01:05:53,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732574413] [2020-10-14 01:05:53,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:05:53,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:05:53,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:05:53,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:05:53,364 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 5 states. [2020-10-14 01:06:03,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:03,560 INFO L93 Difference]: Finished difference Result 2672 states and 5138 transitions. [2020-10-14 01:06:03,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:06:03,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 824 [2020-10-14 01:06:03,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:03,601 INFO L225 Difference]: With dead ends: 2672 [2020-10-14 01:06:03,601 INFO L226 Difference]: Without dead ends: 1702 [2020-10-14 01:06:03,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 01:06:03,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2020-10-14 01:06:03,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1687. [2020-10-14 01:06:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1687 states. [2020-10-14 01:06:03,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 3015 transitions. [2020-10-14 01:06:03,792 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 3015 transitions. Word has length 824 [2020-10-14 01:06:03,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:03,798 INFO L479 AbstractCegarLoop]: Abstraction has 1687 states and 3015 transitions. [2020-10-14 01:06:03,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 01:06:03,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 3015 transitions. [2020-10-14 01:06:03,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2020-10-14 01:06:03,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:03,831 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:06:03,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 01:06:03,832 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:03,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:03,833 INFO L82 PathProgramCache]: Analyzing trace with hash -230800924, now seen corresponding path program 1 times [2020-10-14 01:06:03,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:03,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699189681] [2020-10-14 01:06:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:04,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:04,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:09,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:09,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 859 [2020-10-14 01:06:09,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:06:09,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-14 01:06:09,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:09,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:09,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 01:06:09,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:06:09,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 829 [2020-10-14 01:06:09,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:10,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:06:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:10,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:10,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:10,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:06:10,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:06:10,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:10,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:10,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:06:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:10,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:10,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:10,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:06:10,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:10,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 01:06:10,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:10,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:10,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:06:10,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:10,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:06:10,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:10,962 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:06:10,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699189681] [2020-10-14 01:06:10,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:06:10,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 01:06:10,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557183186] [2020-10-14 01:06:10,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:06:10,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:06:10,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:06:10,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:06:10,967 INFO L87 Difference]: Start difference. First operand 1687 states and 3015 transitions. Second operand 5 states. [2020-10-14 01:06:20,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:20,203 INFO L93 Difference]: Finished difference Result 5073 states and 9123 transitions. [2020-10-14 01:06:20,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:06:20,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 843 [2020-10-14 01:06:20,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:20,225 INFO L225 Difference]: With dead ends: 5073 [2020-10-14 01:06:20,225 INFO L226 Difference]: Without dead ends: 3392 [2020-10-14 01:06:20,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 01:06:20,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2020-10-14 01:06:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 3388. [2020-10-14 01:06:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3388 states. [2020-10-14 01:06:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 5273 transitions. [2020-10-14 01:06:20,328 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 5273 transitions. Word has length 843 [2020-10-14 01:06:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:20,330 INFO L479 AbstractCegarLoop]: Abstraction has 3388 states and 5273 transitions. [2020-10-14 01:06:20,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 01:06:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 5273 transitions. [2020-10-14 01:06:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2020-10-14 01:06:20,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:20,347 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:06:20,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 01:06:20,348 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:20,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:20,348 INFO L82 PathProgramCache]: Analyzing trace with hash 995549154, now seen corresponding path program 1 times [2020-10-14 01:06:20,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:20,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904324574] [2020-10-14 01:06:20,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:20,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:20,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:20,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:25,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:25,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:25,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 906 [2020-10-14 01:06:25,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:06:25,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 01:06:25,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:25,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:25,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:25,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 01:06:25,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 01:06:25,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:25,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:06:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:25,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:25,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:25,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:06:25,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:25,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:06:25,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:25,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:25,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:25,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:06:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:25,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:25,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:25,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:06:25,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:25,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:06:25,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:25,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:25,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:25,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:06:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:25,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:25,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:06:25,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:25,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:06:25,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:25,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:06:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:06:25,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:25,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 01:06:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:25,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:25,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:25,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 01:06:25,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:25,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 01:06:25,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:25,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:06:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 01:06:25,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:26,169 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 01:06:26,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904324574] [2020-10-14 01:06:26,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:06:26,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:06:26,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128831596] [2020-10-14 01:06:26,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:06:26,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:06:26,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:06:26,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:06:26,175 INFO L87 Difference]: Start difference. First operand 3388 states and 5273 transitions. Second operand 7 states. [2020-10-14 01:06:38,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:06:38,356 INFO L93 Difference]: Finished difference Result 8587 states and 13874 transitions. [2020-10-14 01:06:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:06:38,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 886 [2020-10-14 01:06:38,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:06:38,386 INFO L225 Difference]: With dead ends: 8587 [2020-10-14 01:06:38,386 INFO L226 Difference]: Without dead ends: 5205 [2020-10-14 01:06:38,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:06:38,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5205 states. [2020-10-14 01:06:38,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5205 to 5174. [2020-10-14 01:06:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5174 states. [2020-10-14 01:06:38,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5174 states to 5174 states and 7628 transitions. [2020-10-14 01:06:38,536 INFO L78 Accepts]: Start accepts. Automaton has 5174 states and 7628 transitions. Word has length 886 [2020-10-14 01:06:38,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:06:38,536 INFO L479 AbstractCegarLoop]: Abstraction has 5174 states and 7628 transitions. [2020-10-14 01:06:38,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:06:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5174 states and 7628 transitions. [2020-10-14 01:06:38,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 917 [2020-10-14 01:06:38,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:06:38,559 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:06:38,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 01:06:38,560 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:06:38,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:06:38,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1501175910, now seen corresponding path program 1 times [2020-10-14 01:06:38,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:06:38,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365018307] [2020-10-14 01:06:38,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:06:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:38,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:38,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:38,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:42,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:43,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:43,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 936 [2020-10-14 01:06:43,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:06:43,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-14 01:06:43,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:43,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:43,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 01:06:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 01:06:43,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:43,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:06:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:43,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:43,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:43,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:06:43,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:06:43,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:43,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:43,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:43,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:06:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:43,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:43,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:43,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:06:43,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:43,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:06:43,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:43,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:06:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:06:43,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:43,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:06:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:44,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:44,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:44,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:06:44,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:44,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 01:06:44,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:44,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:06:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:06:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:06:44,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:06:44,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 01:06:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:06:44,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:06:44,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:06:44,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:06:44,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:06:44,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 01:06:44,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:06:44,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:06:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:06:44,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:06:44,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 01:06:44,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:06:44,577 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 01:06:44,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365018307] [2020-10-14 01:06:44,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:06:44,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:06:44,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320113730] [2020-10-14 01:06:44,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:06:44,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:06:44,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:06:44,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:06:44,581 INFO L87 Difference]: Start difference. First operand 5174 states and 7628 transitions. Second operand 7 states. [2020-10-14 01:07:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:07:02,437 INFO L93 Difference]: Finished difference Result 20863 states and 32341 transitions. [2020-10-14 01:07:02,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:07:02,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 916 [2020-10-14 01:07:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:07:02,519 INFO L225 Difference]: With dead ends: 20863 [2020-10-14 01:07:02,520 INFO L226 Difference]: Without dead ends: 15695 [2020-10-14 01:07:02,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:07:02,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15695 states. [2020-10-14 01:07:02,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15695 to 15649. [2020-10-14 01:07:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15649 states. [2020-10-14 01:07:02,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15649 states to 15649 states and 20964 transitions. [2020-10-14 01:07:02,908 INFO L78 Accepts]: Start accepts. Automaton has 15649 states and 20964 transitions. Word has length 916 [2020-10-14 01:07:02,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:07:02,909 INFO L479 AbstractCegarLoop]: Abstraction has 15649 states and 20964 transitions. [2020-10-14 01:07:02,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:07:02,909 INFO L276 IsEmpty]: Start isEmpty. Operand 15649 states and 20964 transitions. [2020-10-14 01:07:02,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 965 [2020-10-14 01:07:02,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:07:02,972 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:07:02,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 01:07:02,973 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:07:02,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:07:02,973 INFO L82 PathProgramCache]: Analyzing trace with hash -712871014, now seen corresponding path program 1 times [2020-10-14 01:07:02,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:07:02,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116017746] [2020-10-14 01:07:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:07:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:03,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:03,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:05,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:08,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:08,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 980 [2020-10-14 01:07:08,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:07:08,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 01:07:08,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:08,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:08,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:07:08,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:07:08,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 01:07:08,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:08,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:07:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:08,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:08,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:08,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:07:08,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:08,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:07:08,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:08,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:07:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:07:08,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:07:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:08,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:08,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:08,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 01:07:08,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:08,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 01:07:08,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:08,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:08,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:08,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:07:08,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 01:07:08,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:07:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:07:09,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116017746] [2020-10-14 01:07:09,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:07:09,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:07:09,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715817157] [2020-10-14 01:07:09,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:07:09,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:07:09,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:07:09,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:07:09,259 INFO L87 Difference]: Start difference. First operand 15649 states and 20964 transitions. Second operand 7 states. [2020-10-14 01:07:20,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:07:20,536 INFO L93 Difference]: Finished difference Result 39395 states and 54514 transitions. [2020-10-14 01:07:20,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:07:20,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 964 [2020-10-14 01:07:20,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:07:20,630 INFO L225 Difference]: With dead ends: 39395 [2020-10-14 01:07:20,630 INFO L226 Difference]: Without dead ends: 23752 [2020-10-14 01:07:20,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:07:20,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23752 states. [2020-10-14 01:07:21,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23752 to 23632. [2020-10-14 01:07:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23632 states. [2020-10-14 01:07:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23632 states to 23632 states and 31300 transitions. [2020-10-14 01:07:21,259 INFO L78 Accepts]: Start accepts. Automaton has 23632 states and 31300 transitions. Word has length 964 [2020-10-14 01:07:21,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:07:21,259 INFO L479 AbstractCegarLoop]: Abstraction has 23632 states and 31300 transitions. [2020-10-14 01:07:21,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:07:21,260 INFO L276 IsEmpty]: Start isEmpty. Operand 23632 states and 31300 transitions. [2020-10-14 01:07:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2020-10-14 01:07:21,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:07:21,354 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:07:21,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 01:07:21,354 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:07:21,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:07:21,355 INFO L82 PathProgramCache]: Analyzing trace with hash -594402702, now seen corresponding path program 1 times [2020-10-14 01:07:21,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:07:21,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530358672] [2020-10-14 01:07:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:07:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:21,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:22,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:24,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:26,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:26,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 994 [2020-10-14 01:07:26,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:07:26,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 01:07:26,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:26,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:26,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:26,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:07:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 01:07:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:07:26,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:07:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:26,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:26,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:26,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:07:26,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:26,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:07:26,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:26,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:26,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:26,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:26,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:26,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:26,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:07:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:26,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:26,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:26,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:07:26,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:26,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 01:07:26,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:26,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:07:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:07:26,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:26,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:07:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:26,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:26,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:26,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 01:07:26,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:26,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 01:07:26,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:26,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:26,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:26,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:07:26,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 01:07:26,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:27,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 01:07:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:27,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:27,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:27,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:07:27,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:27,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 01:07:27,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:27,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 01:07:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:27,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:27,520 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 161 proven. 57 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 01:07:27,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530358672] [2020-10-14 01:07:27,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:07:27,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:07:27,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359424360] [2020-10-14 01:07:27,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:07:27,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:07:27,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:07:27,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:07:27,523 INFO L87 Difference]: Start difference. First operand 23632 states and 31300 transitions. Second operand 7 states. [2020-10-14 01:07:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:07:40,901 INFO L93 Difference]: Finished difference Result 70385 states and 107997 transitions. [2020-10-14 01:07:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:07:40,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 974 [2020-10-14 01:07:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:07:41,143 INFO L225 Difference]: With dead ends: 70385 [2020-10-14 01:07:41,143 INFO L226 Difference]: Without dead ends: 46759 [2020-10-14 01:07:41,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:07:41,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46759 states. [2020-10-14 01:07:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46759 to 45976. [2020-10-14 01:07:42,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45976 states. [2020-10-14 01:07:42,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45976 states to 45976 states and 61658 transitions. [2020-10-14 01:07:42,597 INFO L78 Accepts]: Start accepts. Automaton has 45976 states and 61658 transitions. Word has length 974 [2020-10-14 01:07:42,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:07:42,598 INFO L479 AbstractCegarLoop]: Abstraction has 45976 states and 61658 transitions. [2020-10-14 01:07:42,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:07:42,598 INFO L276 IsEmpty]: Start isEmpty. Operand 45976 states and 61658 transitions. [2020-10-14 01:07:42,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2020-10-14 01:07:42,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:07:42,712 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:07:42,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 01:07:42,712 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:07:42,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:07:42,713 INFO L82 PathProgramCache]: Analyzing trace with hash 596410330, now seen corresponding path program 1 times [2020-10-14 01:07:42,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:07:42,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883090472] [2020-10-14 01:07:42,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:07:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:42,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:42,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:43,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:45,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:47,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:47,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 995 [2020-10-14 01:07:47,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:07:47,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-14 01:07:47,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:47,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:07:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 01:07:47,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:07:48,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:07:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:48,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:48,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:48,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:07:48,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:07:48,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:48,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:48,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:07:48,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:07:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:48,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:48,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:48,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:07:48,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:48,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 01:07:48,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:48,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:48,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:07:48,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:07:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:07:48,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:07:48,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:07:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:48,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:48,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:48,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 01:07:48,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:48,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 01:07:48,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:48,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:48,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:07:48,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:07:48,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 01:07:48,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:07:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 01:07:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:07:48,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:07:48,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:07:48,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:07:48,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:07:48,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 01:07:48,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:07:48,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:07:48,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:07:48,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 01:07:48,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:07:48,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:07:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 162 proven. 57 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 01:07:49,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883090472] [2020-10-14 01:07:49,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:07:49,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:07:49,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485034959] [2020-10-14 01:07:49,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:07:49,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:07:49,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:07:49,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:07:49,200 INFO L87 Difference]: Start difference. First operand 45976 states and 61658 transitions. Second operand 7 states. [2020-10-14 01:08:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:08:00,869 INFO L93 Difference]: Finished difference Result 123247 states and 170919 transitions. [2020-10-14 01:08:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 01:08:00,870 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 975 [2020-10-14 01:08:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:08:01,096 INFO L225 Difference]: With dead ends: 123247 [2020-10-14 01:08:01,096 INFO L226 Difference]: Without dead ends: 77281 [2020-10-14 01:08:01,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 01:08:01,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77281 states. [2020-10-14 01:08:02,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77281 to 77272. [2020-10-14 01:08:02,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77272 states. [2020-10-14 01:08:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77272 states to 77272 states and 105144 transitions. [2020-10-14 01:08:02,886 INFO L78 Accepts]: Start accepts. Automaton has 77272 states and 105144 transitions. Word has length 975 [2020-10-14 01:08:02,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:08:02,886 INFO L479 AbstractCegarLoop]: Abstraction has 77272 states and 105144 transitions. [2020-10-14 01:08:02,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:08:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 77272 states and 105144 transitions. [2020-10-14 01:08:03,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1182 [2020-10-14 01:08:03,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:08:03,159 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:08:03,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 01:08:03,161 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:08:03,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:08:03,161 INFO L82 PathProgramCache]: Analyzing trace with hash -340806275, now seen corresponding path program 1 times [2020-10-14 01:08:03,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:08:03,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254107789] [2020-10-14 01:08:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:08:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:03,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:03,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:08,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:08,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1201 [2020-10-14 01:08:08,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:08:08,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5131 [2020-10-14 01:08:08,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:08,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 01:08:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:08:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 340 [2020-10-14 01:08:08,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:08,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:08:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:08,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:08,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:08,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:08:08,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:08:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:08,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:08:08,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:08:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:08,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:08,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:08,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:08:08,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 01:08:08,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:08,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:08:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:08:08,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:08:08,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:08:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:08,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:09,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:10,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:10,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-14 01:08:10,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:08:10,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2003 [2020-10-14 01:08:10,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:10,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 01:08:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:08:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 341 [2020-10-14 01:08:10,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:11,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:08:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:11,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:11,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:11,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 01:08:11,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 01:08:11,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:11,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 01:08:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 01:08:11,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 364 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:08:13,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254107789] [2020-10-14 01:08:13,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:08:13,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 01:08:13,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150906715] [2020-10-14 01:08:13,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 01:08:13,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:08:13,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 01:08:13,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 01:08:13,527 INFO L87 Difference]: Start difference. First operand 77272 states and 105144 transitions. Second operand 9 states. [2020-10-14 01:08:13,882 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-14 01:08:17,610 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2020-10-14 01:08:18,058 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-14 01:08:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:08:31,437 INFO L93 Difference]: Finished difference Result 156194 states and 222962 transitions. [2020-10-14 01:08:31,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 01:08:31,438 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1181 [2020-10-14 01:08:31,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:08:31,695 INFO L225 Difference]: With dead ends: 156194 [2020-10-14 01:08:31,696 INFO L226 Difference]: Without dead ends: 78932 [2020-10-14 01:08:31,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-14 01:08:31,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78932 states. [2020-10-14 01:08:32,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78932 to 78153. [2020-10-14 01:08:32,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78153 states. [2020-10-14 01:08:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78153 states to 78153 states and 106320 transitions. [2020-10-14 01:08:33,081 INFO L78 Accepts]: Start accepts. Automaton has 78153 states and 106320 transitions. Word has length 1181 [2020-10-14 01:08:33,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:08:33,082 INFO L479 AbstractCegarLoop]: Abstraction has 78153 states and 106320 transitions. [2020-10-14 01:08:33,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 01:08:33,082 INFO L276 IsEmpty]: Start isEmpty. Operand 78153 states and 106320 transitions. [2020-10-14 01:08:33,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1288 [2020-10-14 01:08:33,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:08:33,373 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:08:33,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 01:08:33,374 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:08:33,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:08:33,375 INFO L82 PathProgramCache]: Analyzing trace with hash -853616151, now seen corresponding path program 1 times [2020-10-14 01:08:33,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:08:33,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400627645] [2020-10-14 01:08:33,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:08:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:33,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:33,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:34,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:38,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:38,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1307 [2020-10-14 01:08:38,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:08:38,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5350 [2020-10-14 01:08:38,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:38,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:08:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 01:08:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 340 [2020-10-14 01:08:38,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:39,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:08:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:39,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:39,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:39,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:08:39,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:08:39,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:39,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:08:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:08:39,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:08:39,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:08:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:39,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:39,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:39,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 01:08:39,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 01:08:39,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:39,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:08:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 01:08:39,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:39,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 01:08:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:39,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:39,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:39,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-14 01:08:39,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:39,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-14 01:08:39,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:39,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:08:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:08:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 341 [2020-10-14 01:08:39,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:39,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:08:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:39,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:40,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:40,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 01:08:40,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:40,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 01:08:40,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:40,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 01:08:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:08:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 01:08:40,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:08:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 576 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:08:43,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400627645] [2020-10-14 01:08:43,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:08:43,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 01:08:43,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389710925] [2020-10-14 01:08:43,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 01:08:43,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:08:43,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 01:08:43,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 01:08:43,526 INFO L87 Difference]: Start difference. First operand 78153 states and 106320 transitions. Second operand 8 states. [2020-10-14 01:08:57,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:08:57,499 INFO L93 Difference]: Finished difference Result 195276 states and 277115 transitions. [2020-10-14 01:08:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:08:57,500 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1287 [2020-10-14 01:08:57,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:08:57,787 INFO L225 Difference]: With dead ends: 195276 [2020-10-14 01:08:57,788 INFO L226 Difference]: Without dead ends: 112915 [2020-10-14 01:08:57,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 01:08:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112915 states. [2020-10-14 01:08:59,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112915 to 99945. [2020-10-14 01:08:59,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99945 states. [2020-10-14 01:08:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99945 states to 99945 states and 131040 transitions. [2020-10-14 01:08:59,638 INFO L78 Accepts]: Start accepts. Automaton has 99945 states and 131040 transitions. Word has length 1287 [2020-10-14 01:08:59,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:08:59,639 INFO L479 AbstractCegarLoop]: Abstraction has 99945 states and 131040 transitions. [2020-10-14 01:08:59,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 01:08:59,639 INFO L276 IsEmpty]: Start isEmpty. Operand 99945 states and 131040 transitions. [2020-10-14 01:08:59,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1583 [2020-10-14 01:08:59,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:08:59,809 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:08:59,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 01:08:59,810 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:08:59,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:08:59,810 INFO L82 PathProgramCache]: Analyzing trace with hash 640684345, now seen corresponding path program 1 times [2020-10-14 01:08:59,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:08:59,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267513178] [2020-10-14 01:08:59,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:08:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:00,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:00,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:00,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:00,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:05,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:05,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1606 [2020-10-14 01:09:05,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:09:05,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 01:09:05,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:05,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:09:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 01:09:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 01:09:05,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:09:05,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:09:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:05,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:05,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:05,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:09:05,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:05,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:09:05,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:05,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:09:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:09:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:09:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:09:05,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:09:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:05,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:05,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:05,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 01:09:05,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:05,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 01:09:05,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:05,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:05,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:09:05,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:09:05,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 01:09:05,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:09:05,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 01:09:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:05,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:05,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:05,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 01:09:05,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 01:09:05,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:05,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:09:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:09:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 01:09:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:09:05,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2020-10-14 01:09:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:05,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:05,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:05,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 01:09:05,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:05,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 01:09:05,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:05,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:09:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 01:09:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:09:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:09:05,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428