/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/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:26:31,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:26:31,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:26:31,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:26:31,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:26:31,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:26:31,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:26:31,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:26:31,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:26:31,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:26:31,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:26:31,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:26:31,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:26:31,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:26:31,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:26:31,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:26:31,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:26:31,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:26:31,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:26:31,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:26:31,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:26:31,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:26:31,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:26:31,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:26:31,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:26:31,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:26:31,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:26:31,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:26:31,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:26:31,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:26:31,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:26:31,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:26:31,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:26:31,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:26:31,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:26:31,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:26:31,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:26:31,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:26:31,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:26:31,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:26:31,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:26:31,466 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 08:26:31,515 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:26:31,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:26:31,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:26:31,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:26:31,518 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:26:31,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:26:31,518 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:26:31,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:26:31,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:26:31,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:26:31,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:26:31,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:26:31,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:26:31,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:26:31,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:26:31,521 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:26:31,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:26:31,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:26:31,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:26:31,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:26:31,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:26:31,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:26:31,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:26:31,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:26:31,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:26:31,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:26:31,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:26:31,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:26:31,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:26:31,524 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 08:26:31,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:26:31,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:26:31,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:26:31,865 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:26:31,866 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:26:31,866 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:26:31,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/688dc0b86/ba7360c9b7c14022b0e5f5fd0a7ee26f/FLAG1da526edc [2020-10-14 08:26:32,623 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:26:32,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:26:32,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/688dc0b86/ba7360c9b7c14022b0e5f5fd0a7ee26f/FLAG1da526edc [2020-10-14 08:26:32,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/688dc0b86/ba7360c9b7c14022b0e5f5fd0a7ee26f [2020-10-14 08:26:32,771 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:26:32,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:26:32,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:26:32,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:26:32,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:26:32,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:26:32" (1/1) ... [2020-10-14 08:26:32,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d5d851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:32, skipping insertion in model container [2020-10-14 08:26:32,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:26:32" (1/1) ... [2020-10-14 08:26:32,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:26:32,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:26:34,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:26:34,393 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:26:35,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:26:35,369 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:26:35,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35 WrapperNode [2020-10-14 08:26:35,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:26:35,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:26:35,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:26:35,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:26:35,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35" (1/1) ... [2020-10-14 08:26:35,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35" (1/1) ... [2020-10-14 08:26:35,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35" (1/1) ... [2020-10-14 08:26:35,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35" (1/1) ... [2020-10-14 08:26:35,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35" (1/1) ... [2020-10-14 08:26:35,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35" (1/1) ... [2020-10-14 08:26:35,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35" (1/1) ... [2020-10-14 08:26:35,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:26:35,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:26:35,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:26:35,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:26:35,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35" (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 08:26:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:26:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:26:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:26:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:26:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:26:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:26:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:26:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:26:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:26:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:26:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:26:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:26:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:26:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:26:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:26:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:26:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:26:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:26:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:26:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:26:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:26:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:26:38,198 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:26:38,199 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:26:38,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:26:38 BoogieIcfgContainer [2020-10-14 08:26:38,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:26:38,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:26:38,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:26:38,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:26:38,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:26:32" (1/3) ... [2020-10-14 08:26:38,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341cf0e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:26:38, skipping insertion in model container [2020-10-14 08:26:38,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:35" (2/3) ... [2020-10-14 08:26:38,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341cf0e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:26:38, skipping insertion in model container [2020-10-14 08:26:38,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:26:38" (3/3) ... [2020-10-14 08:26:38,226 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:26:38,236 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:26:38,252 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-14 08:26:38,266 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-14 08:26:38,301 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:26:38,301 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:26:38,301 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:26:38,301 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:26:38,301 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:26:38,302 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:26:38,302 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:26:38,302 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:26:38,338 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states. [2020-10-14 08:26:38,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-14 08:26:38,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:26:38,365 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] [2020-10-14 08:26:38,366 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:26:38,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:26:38,373 INFO L82 PathProgramCache]: Analyzing trace with hash 2107463414, now seen corresponding path program 1 times [2020-10-14 08:26:38,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:26:38,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581748459] [2020-10-14 08:26:38,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:26:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:26:39,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:39,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:40,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:40,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:40,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:41,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:41,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:41,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:41,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:41,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:41,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:42,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:42,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:43,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:43,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:43,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:44,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:26:44,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-14 08:26:44,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:26:44,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 08:26:44,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:26:44,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:26:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:26:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-14 08:26:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 08:26:44,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:26:45,292 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:26:45,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:26:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:26:45,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:45,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:26:45,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:26:45,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:26:45,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:26:45,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:26:45,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:26:45,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:26:45,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:26:45,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:26:45,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:26:45,534 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 08:26:45,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581748459] [2020-10-14 08:26:45,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:26:45,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:26:45,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275082018] [2020-10-14 08:26:45,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:26:45,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:26:45,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:26:45,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:26:45,562 INFO L87 Difference]: Start difference. First operand 922 states. Second operand 4 states. [2020-10-14 08:26:46,177 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-14 08:26:52,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:26:52,790 INFO L93 Difference]: Finished difference Result 1604 states and 2863 transitions. [2020-10-14 08:26:52,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:26:52,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 296 [2020-10-14 08:26:52,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:26:52,828 INFO L225 Difference]: With dead ends: 1604 [2020-10-14 08:26:52,828 INFO L226 Difference]: Without dead ends: 1334 [2020-10-14 08:26:52,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:26:52,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2020-10-14 08:26:52,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1332. [2020-10-14 08:26:52,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1332 states. [2020-10-14 08:26:52,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 2035 transitions. [2020-10-14 08:26:52,984 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 2035 transitions. Word has length 296 [2020-10-14 08:26:52,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:26:52,988 INFO L479 AbstractCegarLoop]: Abstraction has 1332 states and 2035 transitions. [2020-10-14 08:26:52,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:26:52,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 2035 transitions. [2020-10-14 08:26:53,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-14 08:26:53,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:26:53,006 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] [2020-10-14 08:26:53,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:26:53,007 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:26:53,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:26:53,008 INFO L82 PathProgramCache]: Analyzing trace with hash 298029289, now seen corresponding path program 1 times [2020-10-14 08:26:53,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:26:53,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137553865] [2020-10-14 08:26:53,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:26:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:26:53,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:53,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:53,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:54,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:54,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:54,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:54,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:54,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:54,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:55,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:55,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:55,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:55,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:56,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:56,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:56,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:58,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:26:58,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-14 08:26:58,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:26:58,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-14 08:26:58,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:26:58,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:26:58,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:26:58,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 08:26:58,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 08:26:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:26:59,156 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:26:59,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:26:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:26:59,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:26:59,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:26:59,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:26:59,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:26:59,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:26:59,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:26:59,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:26:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:26:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:26:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:26:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:26:59,430 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 08:26:59,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137553865] [2020-10-14 08:26:59,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:26:59,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:26:59,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725462831] [2020-10-14 08:26:59,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:26:59,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:26:59,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:26:59,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:26:59,437 INFO L87 Difference]: Start difference. First operand 1332 states and 2035 transitions. Second operand 4 states. [2020-10-14 08:27:00,180 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-14 08:27:06,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:27:06,242 INFO L93 Difference]: Finished difference Result 2577 states and 3984 transitions. [2020-10-14 08:27:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:27:06,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 296 [2020-10-14 08:27:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:27:06,263 INFO L225 Difference]: With dead ends: 2577 [2020-10-14 08:27:06,264 INFO L226 Difference]: Without dead ends: 2246 [2020-10-14 08:27:06,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:27:06,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2020-10-14 08:27:06,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2244. [2020-10-14 08:27:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2020-10-14 08:27:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3448 transitions. [2020-10-14 08:27:06,369 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3448 transitions. Word has length 296 [2020-10-14 08:27:06,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:27:06,369 INFO L479 AbstractCegarLoop]: Abstraction has 2244 states and 3448 transitions. [2020-10-14 08:27:06,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:27:06,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3448 transitions. [2020-10-14 08:27:06,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-14 08:27:06,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:27:06,377 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] [2020-10-14 08:27:06,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:27:06,382 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:27:06,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:27:06,383 INFO L82 PathProgramCache]: Analyzing trace with hash 297690665, now seen corresponding path program 1 times [2020-10-14 08:27:06,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:27:06,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648572408] [2020-10-14 08:27:06,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:27:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:27:06,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:07,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:07,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:07,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:07,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:07,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:07,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:07,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:08,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:08,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:08,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:08,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:09,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:09,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:11,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:27:11,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-14 08:27:11,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 08:27:11,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 08:27:11,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:27:11,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:27:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:27:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:27:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 08:27:11,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:27:12,340 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:27:12,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:27:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:27:12,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:12,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:27:12,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:27:12,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:27:12,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:27:12,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:27:12,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:27:12,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:27:12,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:27:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:27:12,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:27:12,613 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 08:27:12,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648572408] [2020-10-14 08:27:12,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:27:12,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:27:12,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611647338] [2020-10-14 08:27:12,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:27:12,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:27:12,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:27:12,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:27:12,621 INFO L87 Difference]: Start difference. First operand 2244 states and 3448 transitions. Second operand 5 states. [2020-10-14 08:27:21,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:27:21,342 INFO L93 Difference]: Finished difference Result 6635 states and 10189 transitions. [2020-10-14 08:27:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:27:21,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-10-14 08:27:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:27:21,365 INFO L225 Difference]: With dead ends: 6635 [2020-10-14 08:27:21,365 INFO L226 Difference]: Without dead ends: 4404 [2020-10-14 08:27:21,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:27:21,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2020-10-14 08:27:21,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 4260. [2020-10-14 08:27:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4260 states. [2020-10-14 08:27:21,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 6529 transitions. [2020-10-14 08:27:21,539 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 6529 transitions. Word has length 296 [2020-10-14 08:27:21,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:27:21,539 INFO L479 AbstractCegarLoop]: Abstraction has 4260 states and 6529 transitions. [2020-10-14 08:27:21,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:27:21,539 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 6529 transitions. [2020-10-14 08:27:21,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-14 08:27:21,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:27:21,551 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] [2020-10-14 08:27:21,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:27:21,552 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:27:21,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:27:21,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1626210056, now seen corresponding path program 1 times [2020-10-14 08:27:21,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:27:21,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272173104] [2020-10-14 08:27:21,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:27:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:27:21,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:21,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:21,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:22,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:22,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:22,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:22,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:22,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:22,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:22,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:22,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:23,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:23,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:24,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:24,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:26,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:27:26,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 08:27:26,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:27:26,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 08:27:26,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:27:26,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:27:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:27:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:27:26,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 08:27:26,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:27:27,469 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:27:27,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:27:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:27:27,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:27,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:27:27,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:27:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:27:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:27:27,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:27:27,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:27:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:27:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:27:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:27:27,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:27:27,896 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 08:27:27,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272173104] [2020-10-14 08:27:27,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:27:27,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:27:27,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747233346] [2020-10-14 08:27:27,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:27:27,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:27:27,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:27:27,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:27:27,899 INFO L87 Difference]: Start difference. First operand 4260 states and 6529 transitions. Second operand 4 states. [2020-10-14 08:27:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:27:37,301 INFO L93 Difference]: Finished difference Result 12476 states and 19074 transitions. [2020-10-14 08:27:37,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:27:37,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 298 [2020-10-14 08:27:37,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:27:37,341 INFO L225 Difference]: With dead ends: 12476 [2020-10-14 08:27:37,341 INFO L226 Difference]: Without dead ends: 8356 [2020-10-14 08:27:37,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:27:37,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8356 states. [2020-10-14 08:27:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8356 to 8216. [2020-10-14 08:27:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8216 states. [2020-10-14 08:27:37,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8216 states to 8216 states and 12541 transitions. [2020-10-14 08:27:37,674 INFO L78 Accepts]: Start accepts. Automaton has 8216 states and 12541 transitions. Word has length 298 [2020-10-14 08:27:37,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:27:37,674 INFO L479 AbstractCegarLoop]: Abstraction has 8216 states and 12541 transitions. [2020-10-14 08:27:37,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:27:37,675 INFO L276 IsEmpty]: Start isEmpty. Operand 8216 states and 12541 transitions. [2020-10-14 08:27:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-14 08:27:37,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:27:37,697 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] [2020-10-14 08:27:37,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:27:37,701 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:27:37,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:27:37,701 INFO L82 PathProgramCache]: Analyzing trace with hash 574738765, now seen corresponding path program 1 times [2020-10-14 08:27:37,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:27:37,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610504163] [2020-10-14 08:27:37,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:27:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:27:37,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:37,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:37,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:38,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:38,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:38,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:38,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:38,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:38,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:38,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:38,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:38,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:39,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:39,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:39,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:42,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:27:42,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 08:27:42,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 08:27:42,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 08:27:42,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:27:42,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:27:42,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:27:42,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:27:42,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:27:42,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:27:43,588 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:27:43,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:27:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:27:43,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:43,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:27:43,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:27:43,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:27:43,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:27:43,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:27:43,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:27:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:27:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:27:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:27:43,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:27:43,829 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 08:27:43,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610504163] [2020-10-14 08:27:43,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:27:43,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:27:43,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343206657] [2020-10-14 08:27:43,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:27:43,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:27:43,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:27:43,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:27:43,834 INFO L87 Difference]: Start difference. First operand 8216 states and 12541 transitions. Second operand 4 states. [2020-10-14 08:27:49,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:27:49,269 INFO L93 Difference]: Finished difference Result 24489 states and 37347 transitions. [2020-10-14 08:27:49,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:27:49,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 298 [2020-10-14 08:27:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:27:49,329 INFO L225 Difference]: With dead ends: 24489 [2020-10-14 08:27:49,330 INFO L226 Difference]: Without dead ends: 16300 [2020-10-14 08:27:49,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:27:49,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16300 states. [2020-10-14 08:27:49,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16300 to 8227. [2020-10-14 08:27:49,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8227 states. [2020-10-14 08:27:49,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8227 states to 8227 states and 12556 transitions. [2020-10-14 08:27:49,744 INFO L78 Accepts]: Start accepts. Automaton has 8227 states and 12556 transitions. Word has length 298 [2020-10-14 08:27:49,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:27:49,744 INFO L479 AbstractCegarLoop]: Abstraction has 8227 states and 12556 transitions. [2020-10-14 08:27:49,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:27:49,745 INFO L276 IsEmpty]: Start isEmpty. Operand 8227 states and 12556 transitions. [2020-10-14 08:27:49,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-14 08:27:49,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:27:49,767 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] [2020-10-14 08:27:49,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:27:49,767 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:27:49,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:27:49,768 INFO L82 PathProgramCache]: Analyzing trace with hash 2040589920, now seen corresponding path program 1 times [2020-10-14 08:27:49,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:27:49,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561058040] [2020-10-14 08:27:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:27:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:27:49,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:49,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:50,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:50,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:50,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:50,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:50,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:50,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:51,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:51,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:51,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:51,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:51,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:51,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:52,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:52,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:52,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:54,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:27:54,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-10-14 08:27:54,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:27:54,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 08:27:54,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:27:54,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:27:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:27:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 08:27:54,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:27:54,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:27:55,401 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:27:55,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:27:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:27:55,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:27:55,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:27:55,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:27:55,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:27:55,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:27:55,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:27:55,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:27:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:27:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:27:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:27:55,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:27:55,495 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 08:27:55,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561058040] [2020-10-14 08:27:55,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:27:55,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:27:55,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999785220] [2020-10-14 08:27:55,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:27:55,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:27:55,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:27:55,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:27:55,497 INFO L87 Difference]: Start difference. First operand 8227 states and 12556 transitions. Second operand 4 states. [2020-10-14 08:28:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:28:05,134 INFO L93 Difference]: Finished difference Result 24586 states and 37514 transitions. [2020-10-14 08:28:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:28:05,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 299 [2020-10-14 08:28:05,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:28:05,167 INFO L225 Difference]: With dead ends: 24586 [2020-10-14 08:28:05,168 INFO L226 Difference]: Without dead ends: 16409 [2020-10-14 08:28:05,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:28:05,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16409 states. [2020-10-14 08:28:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16409 to 8243. [2020-10-14 08:28:05,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8243 states. [2020-10-14 08:28:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8243 states to 8243 states and 12575 transitions. [2020-10-14 08:28:05,640 INFO L78 Accepts]: Start accepts. Automaton has 8243 states and 12575 transitions. Word has length 299 [2020-10-14 08:28:05,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:28:05,641 INFO L479 AbstractCegarLoop]: Abstraction has 8243 states and 12575 transitions. [2020-10-14 08:28:05,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:28:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8243 states and 12575 transitions. [2020-10-14 08:28:05,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-14 08:28:05,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:28:05,658 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] [2020-10-14 08:28:05,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:28:05,658 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:28:05,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:28:05,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1022946752, now seen corresponding path program 1 times [2020-10-14 08:28:05,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:28:05,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766604625] [2020-10-14 08:28:05,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:28:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:28:05,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:06,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:07,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:07,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:10,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:10,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:10,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:10,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:28:10,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-14 08:28:10,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:28:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 08:28:10,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:28:10,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:28:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:28:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:28:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 08:28:10,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:28:11,522 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:28:11,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:28:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:28:11,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:11,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:28:11,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:28:11,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:28:11,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:28:11,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:28:11,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:28:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:28:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:28:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:28:11,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:28:11,704 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 08:28:11,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766604625] [2020-10-14 08:28:11,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:28:11,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:28:11,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096820696] [2020-10-14 08:28:11,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:28:11,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:28:11,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:28:11,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:28:11,706 INFO L87 Difference]: Start difference. First operand 8243 states and 12575 transitions. Second operand 5 states. [2020-10-14 08:28:21,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:28:21,982 INFO L93 Difference]: Finished difference Result 24098 states and 36676 transitions. [2020-10-14 08:28:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:28:21,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 300 [2020-10-14 08:28:21,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:28:22,020 INFO L225 Difference]: With dead ends: 24098 [2020-10-14 08:28:22,021 INFO L226 Difference]: Without dead ends: 16032 [2020-10-14 08:28:22,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:28:22,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16032 states. [2020-10-14 08:28:22,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16032 to 15842. [2020-10-14 08:28:22,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15842 states. [2020-10-14 08:28:23,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15842 states to 15842 states and 24016 transitions. [2020-10-14 08:28:23,010 INFO L78 Accepts]: Start accepts. Automaton has 15842 states and 24016 transitions. Word has length 300 [2020-10-14 08:28:23,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:28:23,010 INFO L479 AbstractCegarLoop]: Abstraction has 15842 states and 24016 transitions. [2020-10-14 08:28:23,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:28:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 15842 states and 24016 transitions. [2020-10-14 08:28:23,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-14 08:28:23,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:28:23,050 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] [2020-10-14 08:28:23,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:28:23,050 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:28:23,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:28:23,051 INFO L82 PathProgramCache]: Analyzing trace with hash -914768025, now seen corresponding path program 1 times [2020-10-14 08:28:23,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:28:23,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513451342] [2020-10-14 08:28:23,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:28:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:28:23,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:23,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:23,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:23,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:23,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:23,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:24,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:25,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:28,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:28:28,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-14 08:28:28,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 08:28:28,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 08:28:28,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:28:28,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:28:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:28:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:28:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 08:28:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:28:28,691 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:28:28,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:28:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:28:28,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:28,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:28:28,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:28:28,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:28:28,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:28:28,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:28:28,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:28:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:28:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:28:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:28:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:28:28,816 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 08:28:28,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513451342] [2020-10-14 08:28:28,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:28:28,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:28:28,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540752780] [2020-10-14 08:28:28,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:28:28,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:28:28,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:28:28,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:28:28,819 INFO L87 Difference]: Start difference. First operand 15842 states and 24016 transitions. Second operand 4 states. [2020-10-14 08:28:39,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:28:39,834 INFO L93 Difference]: Finished difference Result 46687 states and 70668 transitions. [2020-10-14 08:28:39,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:28:39,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2020-10-14 08:28:39,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:28:39,880 INFO L225 Difference]: With dead ends: 46687 [2020-10-14 08:28:39,881 INFO L226 Difference]: Without dead ends: 31093 [2020-10-14 08:28:39,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:28:39,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31093 states. [2020-10-14 08:28:41,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31093 to 30903. [2020-10-14 08:28:41,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30903 states. [2020-10-14 08:28:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30903 states to 30903 states and 46559 transitions. [2020-10-14 08:28:41,503 INFO L78 Accepts]: Start accepts. Automaton has 30903 states and 46559 transitions. Word has length 302 [2020-10-14 08:28:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:28:41,503 INFO L479 AbstractCegarLoop]: Abstraction has 30903 states and 46559 transitions. [2020-10-14 08:28:41,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:28:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 30903 states and 46559 transitions. [2020-10-14 08:28:41,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-14 08:28:41,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:28:41,544 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] [2020-10-14 08:28:41,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:28:41,544 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:28:41,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:28:41,545 INFO L82 PathProgramCache]: Analyzing trace with hash 429578730, now seen corresponding path program 1 times [2020-10-14 08:28:41,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:28:41,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532379024] [2020-10-14 08:28:41,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:28:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:28:42,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:42,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:42,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:42,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:43,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:44,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:44,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:44,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:44,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:46,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:28:46,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-14 08:28:46,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:28:46,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 08:28:46,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:28:46,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:28:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:28:46,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:28:46,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 08:28:46,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:28:47,268 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:28:47,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:28:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:28:47,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:28:47,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:28:47,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:28:47,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:28:47,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:28:47,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:28:47,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:28:47,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:28:47,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:28:47,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:28:47,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:28:47,400 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 08:28:47,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532379024] [2020-10-14 08:28:47,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:28:47,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:28:47,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298243938] [2020-10-14 08:28:47,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:28:47,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:28:47,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:28:47,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:28:47,402 INFO L87 Difference]: Start difference. First operand 30903 states and 46559 transitions. Second operand 5 states. [2020-10-14 08:28:58,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:28:58,709 INFO L93 Difference]: Finished difference Result 91118 states and 137049 transitions. [2020-10-14 08:28:58,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:28:58,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-10-14 08:28:58,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:28:58,795 INFO L225 Difference]: With dead ends: 91118 [2020-10-14 08:28:58,795 INFO L226 Difference]: Without dead ends: 60282 [2020-10-14 08:28:58,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:28:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60282 states. [2020-10-14 08:29:01,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60282 to 60182. [2020-10-14 08:29:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60182 states. [2020-10-14 08:29:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60182 states to 60182 states and 89895 transitions. [2020-10-14 08:29:01,572 INFO L78 Accepts]: Start accepts. Automaton has 60182 states and 89895 transitions. Word has length 302 [2020-10-14 08:29:01,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:29:01,572 INFO L479 AbstractCegarLoop]: Abstraction has 60182 states and 89895 transitions. [2020-10-14 08:29:01,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:29:01,572 INFO L276 IsEmpty]: Start isEmpty. Operand 60182 states and 89895 transitions. [2020-10-14 08:29:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-14 08:29:01,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:29:01,612 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] [2020-10-14 08:29:01,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:29:01,613 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:29:01,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:29:01,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1218331029, now seen corresponding path program 1 times [2020-10-14 08:29:01,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:29:01,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375969140] [2020-10-14 08:29:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:29:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:29:01,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:02,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:02,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:02,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:02,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:02,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:02,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:03,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:03,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:03,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:03,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:03,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:03,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:04,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:04,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:04,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:06,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:29:06,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-14 08:29:06,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:29:06,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 08:29:06,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:29:06,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:29:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:29:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:29:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 08:29:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:29:07,393 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:29:07,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:29:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:29:07,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:07,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:29:07,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:29:07,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:29:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:29:07,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:29:07,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:29:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:29:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:29:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:29:07,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:29:07,524 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 08:29:07,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375969140] [2020-10-14 08:29:07,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:29:07,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:29:07,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158838137] [2020-10-14 08:29:07,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:29:07,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:29:07,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:29:07,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:29:07,526 INFO L87 Difference]: Start difference. First operand 60182 states and 89895 transitions. Second operand 5 states. [2020-10-14 08:29:20,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:29:20,802 INFO L93 Difference]: Finished difference Result 177684 states and 264966 transitions. [2020-10-14 08:29:20,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:29:20,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-10-14 08:29:20,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:29:20,990 INFO L225 Difference]: With dead ends: 177684 [2020-10-14 08:29:20,990 INFO L226 Difference]: Without dead ends: 117764 [2020-10-14 08:29:21,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:29:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117764 states. [2020-10-14 08:29:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117764 to 117680. [2020-10-14 08:29:28,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117680 states. [2020-10-14 08:29:28,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117680 states to 117680 states and 174255 transitions. [2020-10-14 08:29:28,970 INFO L78 Accepts]: Start accepts. Automaton has 117680 states and 174255 transitions. Word has length 302 [2020-10-14 08:29:28,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:29:28,971 INFO L479 AbstractCegarLoop]: Abstraction has 117680 states and 174255 transitions. [2020-10-14 08:29:28,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:29:28,971 INFO L276 IsEmpty]: Start isEmpty. Operand 117680 states and 174255 transitions. [2020-10-14 08:29:29,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-14 08:29:29,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:29:29,066 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] [2020-10-14 08:29:29,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:29:29,067 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:29:29,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:29:29,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1949616813, now seen corresponding path program 1 times [2020-10-14 08:29:29,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:29:29,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978625215] [2020-10-14 08:29:29,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:29:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:29:29,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:29,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:29,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:29,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:29,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:29,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:29,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:29,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:29,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:29,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:30,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:30,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:30,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:32,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:34,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:29:34,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 08:29:34,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:29:34,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 08:29:34,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:29:34,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:29:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:29:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 08:29:34,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:29:34,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:29:34,653 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:29:34,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:29:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:29:34,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:29:34,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:29:34,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:29:34,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:29:34,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:29:34,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:29:34,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:29:34,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:29:34,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:29:34,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:29:34,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:29:34,724 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 08:29:34,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978625215] [2020-10-14 08:29:34,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:29:34,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:29:34,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944019922] [2020-10-14 08:29:34,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:29:34,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:29:34,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:29:34,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:29:34,726 INFO L87 Difference]: Start difference. First operand 117680 states and 174255 transitions. Second operand 4 states. [2020-10-14 08:29:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:29:53,038 INFO L93 Difference]: Finished difference Result 352201 states and 521409 transitions. [2020-10-14 08:29:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:29:53,039 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 304 [2020-10-14 08:29:53,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:29:53,286 INFO L225 Difference]: With dead ends: 352201 [2020-10-14 08:29:53,286 INFO L226 Difference]: Without dead ends: 234918 [2020-10-14 08:29:53,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:29:53,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234918 states. [2020-10-14 08:30:02,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234918 to 117782. [2020-10-14 08:30:02,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117782 states. [2020-10-14 08:30:02,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117782 states to 117782 states and 174390 transitions. [2020-10-14 08:30:02,623 INFO L78 Accepts]: Start accepts. Automaton has 117782 states and 174390 transitions. Word has length 304 [2020-10-14 08:30:02,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:30:02,623 INFO L479 AbstractCegarLoop]: Abstraction has 117782 states and 174390 transitions. [2020-10-14 08:30:02,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:30:02,623 INFO L276 IsEmpty]: Start isEmpty. Operand 117782 states and 174390 transitions. [2020-10-14 08:30:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-10-14 08:30:02,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:30:02,692 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] [2020-10-14 08:30:02,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:30:02,692 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:30:02,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:30:02,692 INFO L82 PathProgramCache]: Analyzing trace with hash -221506440, now seen corresponding path program 1 times [2020-10-14 08:30:02,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:30:02,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17169379] [2020-10-14 08:30:02,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:30:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:30:02,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:30:03,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking...