/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:09:38,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:09:38,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:09:38,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:09:38,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:09:38,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:09:38,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:09:38,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:09:38,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:09:38,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:09:38,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:09:38,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:09:38,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:09:38,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:09:38,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:09:38,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:09:38,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:09:38,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:09:38,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:09:38,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:09:38,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:09:38,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:09:38,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:09:38,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:09:38,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:09:38,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:09:38,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:09:38,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:09:38,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:09:38,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:09:38,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:09:38,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:09:38,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:09:38,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:09:38,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:09:38,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:09:38,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:09:38,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:09:38,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:09:38,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:09:38,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:09:38,422 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 [2020-10-15 03:09:38,445 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:09:38,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:09:38,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:09:38,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:09:38,447 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:09:38,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:09:38,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:09:38,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:09:38,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:09:38,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:09:38,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:09:38,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:09:38,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:09:38,449 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:09:38,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:09:38,449 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:09:38,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:09:38,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:09:38,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:09:38,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:09:38,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:09:38,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:09:38,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:09:38,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:09:38,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:09:38,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:09:38,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:09:38,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:09:38,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:09:38,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:09:38,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:09:38,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:09:38,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:09:38,795 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:09:38,796 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:09:38,797 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-15 03:09:38,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bc8bd08b/9d304bf59ee245f5978c549eeb4dbcd0/FLAGc8c985ae3 [2020-10-15 03:09:39,623 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:09:39,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-15 03:09:39,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bc8bd08b/9d304bf59ee245f5978c549eeb4dbcd0/FLAGc8c985ae3 [2020-10-15 03:09:39,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bc8bd08b/9d304bf59ee245f5978c549eeb4dbcd0 [2020-10-15 03:09:39,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:09:39,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:09:39,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:09:39,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:09:39,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:09:39,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:39" (1/1) ... [2020-10-15 03:09:39,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420abe59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39, skipping insertion in model container [2020-10-15 03:09:39,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:39" (1/1) ... [2020-10-15 03:09:39,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:09:39,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:09:41,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:09:41,815 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:09:43,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:09:43,410 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:09:43,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43 WrapperNode [2020-10-15 03:09:43,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:09:43,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:09:43,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:09:43,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:09:43,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43" (1/1) ... [2020-10-15 03:09:43,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43" (1/1) ... [2020-10-15 03:09:43,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43" (1/1) ... [2020-10-15 03:09:43,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43" (1/1) ... [2020-10-15 03:09:43,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43" (1/1) ... [2020-10-15 03:09:43,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43" (1/1) ... [2020-10-15 03:09:43,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43" (1/1) ... [2020-10-15 03:09:43,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:09:43,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:09:43,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:09:43,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:09:43,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43" (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 [2020-10-15 03:09:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:09:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:09:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:09:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:09:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:09:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:09:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:09:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:09:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:09:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:09:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:09:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:09:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:09:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:09:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:09:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:09:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:09:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:09:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:09:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:09:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:09:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:09:49,606 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:09:49,606 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:09:49,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:09:49 BoogieIcfgContainer [2020-10-15 03:09:49,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:09:49,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:09:49,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:09:49,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:09:49,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:09:39" (1/3) ... [2020-10-15 03:09:49,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb44bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:09:49, skipping insertion in model container [2020-10-15 03:09:49,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:43" (2/3) ... [2020-10-15 03:09:49,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb44bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:09:49, skipping insertion in model container [2020-10-15 03:09:49,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:09:49" (3/3) ... [2020-10-15 03:09:49,627 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-15 03:09:49,638 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:09:49,647 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 03:09:49,662 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 03:09:49,693 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:09:49,693 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:09:49,693 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:09:49,693 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:09:49,693 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:09:49,694 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:09:49,694 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:09:49,694 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:09:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states. [2020-10-15 03:09:49,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2020-10-15 03:09:49,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:09:49,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:09:49,781 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:09:49,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:09:49,788 INFO L82 PathProgramCache]: Analyzing trace with hash -856462850, now seen corresponding path program 1 times [2020-10-15 03:09:49,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:09:49,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923489592] [2020-10-15 03:09:49,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:09:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:53,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:55,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:56,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:57,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:57,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 470 [2020-10-15 03:09:57,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 03:09:57,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-15 03:09:57,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:57,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:57,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:09:57,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:09:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-15 03:09:57,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:09:59,193 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-15 03:09:59,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:09:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:09:59,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:09:59,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:09:59,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:09:59,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:09:59,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 03:09:59,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:09:59,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:09:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:09:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:09:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:09:59,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:09:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:09:59,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923489592] [2020-10-15 03:09:59,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:09:59,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:09:59,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374815647] [2020-10-15 03:09:59,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:09:59,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:09:59,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:09:59,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:09:59,917 INFO L87 Difference]: Start difference. First operand 1371 states. Second operand 5 states. [2020-10-15 03:10:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:10:22,025 INFO L93 Difference]: Finished difference Result 4032 states and 7300 transitions. [2020-10-15 03:10:22,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 03:10:22,029 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 464 [2020-10-15 03:10:22,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:10:22,071 INFO L225 Difference]: With dead ends: 4032 [2020-10-15 03:10:22,072 INFO L226 Difference]: Without dead ends: 2702 [2020-10-15 03:10:22,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:10:22,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2020-10-15 03:10:22,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2662. [2020-10-15 03:10:22,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2662 states. [2020-10-15 03:10:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2662 states to 2662 states and 4378 transitions. [2020-10-15 03:10:22,326 INFO L78 Accepts]: Start accepts. Automaton has 2662 states and 4378 transitions. Word has length 464 [2020-10-15 03:10:22,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:10:22,328 INFO L479 AbstractCegarLoop]: Abstraction has 2662 states and 4378 transitions. [2020-10-15 03:10:22,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:10:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2662 states and 4378 transitions. [2020-10-15 03:10:22,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2020-10-15 03:10:22,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:10:22,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:10:22,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:10:22,349 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:10:22,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:10:22,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1436067214, now seen corresponding path program 1 times [2020-10-15 03:10:22,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:10:22,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227099427] [2020-10-15 03:10:22,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:10:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:22,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:23,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:23,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:24,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:24,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:25,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:25,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:25,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:26,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:26,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:26,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:27,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:27,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:27,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-15 03:10:27,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:10:27,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5100 [2020-10-15 03:10:27,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:27,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:10:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 03:10:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-15 03:10:27,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-15 03:10:29,466 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-15 03:10:29,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:10:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:29,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:29,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:29,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:10:29,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:10:29,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 03:10:29,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:29,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:10:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:10:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:10:29,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 03:10:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:10:30,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227099427] [2020-10-15 03:10:30,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:10:30,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:10:30,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165214833] [2020-10-15 03:10:30,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:10:30,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:10:30,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:10:30,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:10:30,326 INFO L87 Difference]: Start difference. First operand 2662 states and 4378 transitions. Second operand 4 states. [2020-10-15 03:10:51,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:10:51,429 INFO L93 Difference]: Finished difference Result 7677 states and 12576 transitions. [2020-10-15 03:10:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:10:51,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 466 [2020-10-15 03:10:51,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:10:51,479 INFO L225 Difference]: With dead ends: 7677 [2020-10-15 03:10:51,479 INFO L226 Difference]: Without dead ends: 5250 [2020-10-15 03:10:51,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:10:51,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5250 states. [2020-10-15 03:10:51,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5250 to 5212. [2020-10-15 03:10:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5212 states. [2020-10-15 03:10:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 8543 transitions. [2020-10-15 03:10:51,773 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 8543 transitions. Word has length 466 [2020-10-15 03:10:51,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:10:51,775 INFO L479 AbstractCegarLoop]: Abstraction has 5212 states and 8543 transitions. [2020-10-15 03:10:51,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:10:51,776 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 8543 transitions. [2020-10-15 03:10:51,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2020-10-15 03:10:51,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:10:51,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:10:51,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:10:51,804 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:10:51,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:10:51,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1621467042, now seen corresponding path program 1 times [2020-10-15 03:10:51,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:10:51,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362830531] [2020-10-15 03:10:51,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:10:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:51,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:52,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:52,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:53,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:53,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:54,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:54,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:54,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:55,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:55,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:55,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:56,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:56,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:56,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:56,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:56,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 473 [2020-10-15 03:10:56,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:10:56,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-15 03:10:56,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:56,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:56,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:10:56,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 03:10:56,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-15 03:10:56,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:10:58,374 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-15 03:10:58,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:10:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:10:58,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:10:58,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:10:58,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:10:58,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:10:58,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 03:10:58,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:10:58,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:10:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:10:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:10:58,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:10:58,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:10:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:10:58,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362830531] [2020-10-15 03:10:58,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:10:58,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:10:58,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796192177] [2020-10-15 03:10:58,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:10:58,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:10:58,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:10:58,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:10:58,755 INFO L87 Difference]: Start difference. First operand 5212 states and 8543 transitions. Second operand 4 states. [2020-10-15 03:11:19,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:11:19,814 INFO L93 Difference]: Finished difference Result 15163 states and 24779 transitions. [2020-10-15 03:11:19,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:11:19,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 467 [2020-10-15 03:11:19,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:11:19,871 INFO L225 Difference]: With dead ends: 15163 [2020-10-15 03:11:19,871 INFO L226 Difference]: Without dead ends: 10248 [2020-10-15 03:11:19,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:11:19,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10248 states. [2020-10-15 03:11:20,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10248 to 10212. [2020-10-15 03:11:20,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10212 states. [2020-10-15 03:11:20,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10212 states to 10212 states and 16668 transitions. [2020-10-15 03:11:20,376 INFO L78 Accepts]: Start accepts. Automaton has 10212 states and 16668 transitions. Word has length 467 [2020-10-15 03:11:20,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:11:20,377 INFO L479 AbstractCegarLoop]: Abstraction has 10212 states and 16668 transitions. [2020-10-15 03:11:20,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:11:20,377 INFO L276 IsEmpty]: Start isEmpty. Operand 10212 states and 16668 transitions. [2020-10-15 03:11:20,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2020-10-15 03:11:20,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:11:20,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:11:20,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:11:20,407 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:11:20,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:11:20,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1068386073, now seen corresponding path program 1 times [2020-10-15 03:11:20,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:11:20,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239437349] [2020-10-15 03:11:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:11:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:11:20,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:20,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:20,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:21,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:21,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:21,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:22,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:22,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:22,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:22,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:23,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:23,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:23,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:24,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:24,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:24,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:24,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:25,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:25,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:25,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:25,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:11:25,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 473 [2020-10-15 03:11:25,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-15 03:11:25,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5151 [2020-10-15 03:11:25,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:11:25,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:11:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:11:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:11:25,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 217 [2020-10-15 03:11:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 03:11:27,070 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-15 03:11:27,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:11:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:11:27,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:27,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:11:27,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:11:27,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:11:27,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 03:11:27,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:11:27,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:11:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:11:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:11:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:11:27,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:11:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:11:27,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239437349] [2020-10-15 03:11:27,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:11:27,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:11:27,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250163121] [2020-10-15 03:11:27,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:11:27,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:11:27,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:11:27,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:11:27,548 INFO L87 Difference]: Start difference. First operand 10212 states and 16668 transitions. Second operand 5 states. [2020-10-15 03:11:45,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:11:45,558 INFO L93 Difference]: Finished difference Result 29806 states and 48503 transitions. [2020-10-15 03:11:45,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:11:45,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 467 [2020-10-15 03:11:45,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:11:45,643 INFO L225 Difference]: With dead ends: 29806 [2020-10-15 03:11:45,643 INFO L226 Difference]: Without dead ends: 20005 [2020-10-15 03:11:45,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:11:45,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20005 states. [2020-10-15 03:11:46,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20005 to 19860. [2020-10-15 03:11:46,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19860 states. [2020-10-15 03:11:46,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19860 states to 19860 states and 32197 transitions. [2020-10-15 03:11:46,415 INFO L78 Accepts]: Start accepts. Automaton has 19860 states and 32197 transitions. Word has length 467 [2020-10-15 03:11:46,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:11:46,416 INFO L479 AbstractCegarLoop]: Abstraction has 19860 states and 32197 transitions. [2020-10-15 03:11:46,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:11:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 19860 states and 32197 transitions. [2020-10-15 03:11:46,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2020-10-15 03:11:46,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:11:46,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:11:46,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:11:46,463 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:11:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:11:46,464 INFO L82 PathProgramCache]: Analyzing trace with hash 227812435, now seen corresponding path program 1 times [2020-10-15 03:11:46,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:11:46,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001907937] [2020-10-15 03:11:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:11:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:11:46,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:46,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:46,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:46,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:47,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:47,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:47,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:47,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:48,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:48,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:48,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:48,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:48,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:48,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:49,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:49,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:49,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:49,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:51,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:11:51,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 475 [2020-10-15 03:11:51,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 03:11:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-15 03:11:51,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:11:51,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:11:51,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:11:51,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:11:51,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-15 03:11:51,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:11:53,197 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-15 03:11:53,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:11:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:11:53,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:53,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:11:53,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:11:53,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:11:53,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 03:11:53,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:11:53,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:11:53,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:11:53,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:11:53,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:11:53,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:11:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:11:53,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001907937] [2020-10-15 03:11:53,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:11:53,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:11:53,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609279324] [2020-10-15 03:11:53,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:11:53,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:11:53,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:11:53,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:11:53,585 INFO L87 Difference]: Start difference. First operand 19860 states and 32197 transitions. Second operand 5 states. [2020-10-15 03:12:12,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:12:12,647 INFO L93 Difference]: Finished difference Result 59138 states and 95853 transitions. [2020-10-15 03:12:12,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:12:12,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 469 [2020-10-15 03:12:12,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:12:12,725 INFO L225 Difference]: With dead ends: 59138 [2020-10-15 03:12:12,725 INFO L226 Difference]: Without dead ends: 39341 [2020-10-15 03:12:12,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:12:12,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39341 states. [2020-10-15 03:12:15,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39341 to 39321. [2020-10-15 03:12:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39321 states. [2020-10-15 03:12:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39321 states to 39321 states and 63459 transitions. [2020-10-15 03:12:15,528 INFO L78 Accepts]: Start accepts. Automaton has 39321 states and 63459 transitions. Word has length 469 [2020-10-15 03:12:15,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:12:15,528 INFO L479 AbstractCegarLoop]: Abstraction has 39321 states and 63459 transitions. [2020-10-15 03:12:15,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:12:15,528 INFO L276 IsEmpty]: Start isEmpty. Operand 39321 states and 63459 transitions. [2020-10-15 03:12:15,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2020-10-15 03:12:15,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:12:15,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:12:15,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:12:15,585 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:12:15,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:12:15,586 INFO L82 PathProgramCache]: Analyzing trace with hash 120403991, now seen corresponding path program 1 times [2020-10-15 03:12:15,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:12:15,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682452755] [2020-10-15 03:12:15,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:12:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:12:15,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:15,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:15,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:16,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:16,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:16,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:16,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:16,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:17,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:18,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:19,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:19,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:19,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:19,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:20,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:20,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:20,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:12:20,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 477 [2020-10-15 03:12:20,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 03:12:20,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-15 03:12:20,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:12:20,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:12:20,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:12:20,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-15 03:12:20,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-15 03:12:20,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:12:21,947 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-15 03:12:21,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:12:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:12:21,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:21,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:12:21,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:12:21,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:12:21,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:12:21,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:12:21,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:12:21,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:12:21,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:12:21,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:12:21,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:12:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:12:22,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682452755] [2020-10-15 03:12:22,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:12:22,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:12:22,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111066429] [2020-10-15 03:12:22,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:12:22,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:12:22,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:12:22,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:12:22,421 INFO L87 Difference]: Start difference. First operand 39321 states and 63459 transitions. Second operand 4 states. [2020-10-15 03:12:47,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:12:47,953 INFO L93 Difference]: Finished difference Result 114786 states and 184747 transitions. [2020-10-15 03:12:47,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:12:47,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 471 [2020-10-15 03:12:47,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:12:48,095 INFO L225 Difference]: With dead ends: 114786 [2020-10-15 03:12:48,095 INFO L226 Difference]: Without dead ends: 77413 [2020-10-15 03:12:48,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:12:48,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77413 states. [2020-10-15 03:12:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77413 to 77395. [2020-10-15 03:12:53,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77395 states. [2020-10-15 03:12:53,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77395 states to 77395 states and 124307 transitions. [2020-10-15 03:12:53,780 INFO L78 Accepts]: Start accepts. Automaton has 77395 states and 124307 transitions. Word has length 471 [2020-10-15 03:12:53,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:12:53,780 INFO L479 AbstractCegarLoop]: Abstraction has 77395 states and 124307 transitions. [2020-10-15 03:12:53,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:12:53,781 INFO L276 IsEmpty]: Start isEmpty. Operand 77395 states and 124307 transitions. [2020-10-15 03:12:53,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-10-15 03:12:53,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:12:53,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:12:53,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:12:53,877 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:12:53,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:12:53,877 INFO L82 PathProgramCache]: Analyzing trace with hash -13507060, now seen corresponding path program 1 times [2020-10-15 03:12:53,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:12:53,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374456981] [2020-10-15 03:12:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:12:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:12:53,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:54,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:54,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:54,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:54,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:54,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:55,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:55,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:56,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:56,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:56,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:56,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:56,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:56,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:57,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:57,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:59,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:12:59,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 478 [2020-10-15 03:12:59,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 03:12:59,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-15 03:12:59,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:12:59,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:12:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:12:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:12:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-15 03:12:59,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:13:00,871 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-15 03:13:00,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:13:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:13:00,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:00,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:13:00,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:13:00,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:13:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:13:00,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:13:00,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:13:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:13:00,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:13:00,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:13:00,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:13:01,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:13:01,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374456981] [2020-10-15 03:13:01,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:13:01,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:13:01,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875240257] [2020-10-15 03:13:01,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:13:01,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:13:01,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:13:01,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:13:01,220 INFO L87 Difference]: Start difference. First operand 77395 states and 124307 transitions. Second operand 5 states. [2020-10-15 03:13:25,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:13:25,673 INFO L93 Difference]: Finished difference Result 225776 states and 361547 transitions. [2020-10-15 03:13:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:13:25,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 472 [2020-10-15 03:13:25,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:13:25,919 INFO L225 Difference]: With dead ends: 225776 [2020-10-15 03:13:25,920 INFO L226 Difference]: Without dead ends: 151433 [2020-10-15 03:13:26,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:13:26,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151433 states. [2020-10-15 03:13:36,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151433 to 151419. [2020-10-15 03:13:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151419 states. [2020-10-15 03:13:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151419 states to 151419 states and 241567 transitions. [2020-10-15 03:13:36,906 INFO L78 Accepts]: Start accepts. Automaton has 151419 states and 241567 transitions. Word has length 472 [2020-10-15 03:13:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:13:36,907 INFO L479 AbstractCegarLoop]: Abstraction has 151419 states and 241567 transitions. [2020-10-15 03:13:36,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:13:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 151419 states and 241567 transitions. [2020-10-15 03:13:37,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2020-10-15 03:13:37,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:13:37,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:13:37,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:13:37,080 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:13:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:13:37,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1809919167, now seen corresponding path program 1 times [2020-10-15 03:13:37,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:13:37,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440693601] [2020-10-15 03:13:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:13:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:13:37,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:37,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:37,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:37,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:37,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:37,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:37,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:37,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:37,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:38,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking...