/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.5.4.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:11:18,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:11:18,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:11:18,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:11:18,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:11:18,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:11:18,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:11:18,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:11:18,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:11:18,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:11:18,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:11:18,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:11:18,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:11:18,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:11:18,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:11:18,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:11:18,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:11:18,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:11:18,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:11:18,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:11:18,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:11:18,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:11:18,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:11:18,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:11:18,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:11:18,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:11:18,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:11:18,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:11:18,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:11:18,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:11:18,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:11:18,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:11:18,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:11:18,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:11:18,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:11:18,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:11:18,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:11:18,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:11:18,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:11:18,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:11:18,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:11:18,553 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 03:11:18,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:11:18,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:11:18,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:11:18,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:11:18,602 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:11:18,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:11:18,603 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:11:18,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:11:18,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:11:18,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:11:18,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:11:18,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:11:18,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:11:18,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:11:18,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:11:18,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:11:18,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:11:18,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:11:18,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:11:18,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:11:18,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:11:18,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:11:18,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:11:18,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:11:18,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:11:18,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:11:18,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:11:18,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:11:18,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:11:18,609 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 03:11:18,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:11:18,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:11:19,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:11:19,003 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:11:19,003 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:11:19,004 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2020-10-15 03:11:19,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62b55a72e/812c228c94e1485fbb3e951147edf244/FLAG853988030 [2020-10-15 03:11:19,937 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:11:19,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2020-10-15 03:11:19,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62b55a72e/812c228c94e1485fbb3e951147edf244/FLAG853988030 [2020-10-15 03:11:20,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62b55a72e/812c228c94e1485fbb3e951147edf244 [2020-10-15 03:11:20,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:11:20,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:11:20,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:11:20,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:11:20,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:11:20,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:11:20" (1/1) ... [2020-10-15 03:11:20,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4363b436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:20, skipping insertion in model container [2020-10-15 03:11:20,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:11:20" (1/1) ... [2020-10-15 03:11:20,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:11:20,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:11:23,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:11:23,469 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:11:25,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:11:25,388 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:11:25,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25 WrapperNode [2020-10-15 03:11:25,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:11:25,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:11:25,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:11:25,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:11:25,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25" (1/1) ... [2020-10-15 03:11:25,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25" (1/1) ... [2020-10-15 03:11:25,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25" (1/1) ... [2020-10-15 03:11:25,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25" (1/1) ... [2020-10-15 03:11:25,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25" (1/1) ... [2020-10-15 03:11:25,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25" (1/1) ... [2020-10-15 03:11:25,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25" (1/1) ... [2020-10-15 03:11:25,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:11:25,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:11:25,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:11:25,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:11:25,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25" (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 03:11:25,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:11:25,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:11:25,853 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:11:25,853 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:11:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:11:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:11:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:11:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:11:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:11:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:11:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:11:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:11:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:11:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:11:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:11:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:11:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:11:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:11:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:11:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:11:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:11:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:11:33,851 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:11:33,852 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:11:33,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:11:33 BoogieIcfgContainer [2020-10-15 03:11:33,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:11:33,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:11:33,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:11:33,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:11:33,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:11:20" (1/3) ... [2020-10-15 03:11:33,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337437d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:11:33, skipping insertion in model container [2020-10-15 03:11:33,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:25" (2/3) ... [2020-10-15 03:11:33,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337437d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:11:33, skipping insertion in model container [2020-10-15 03:11:33,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:11:33" (3/3) ... [2020-10-15 03:11:33,876 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.4.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2020-10-15 03:11:33,888 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:11:33,898 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 03:11:33,913 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 03:11:33,946 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:11:33,947 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:11:33,947 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:11:33,947 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:11:33,947 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:11:33,947 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:11:33,947 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:11:33,947 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:11:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states. [2020-10-15 03:11:34,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-15 03:11:34,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:11:34,033 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] [2020-10-15 03:11:34,034 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:11:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:11:34,040 INFO L82 PathProgramCache]: Analyzing trace with hash -2040294362, now seen corresponding path program 1 times [2020-10-15 03:11:34,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:11:34,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557775887] [2020-10-15 03:11:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:11:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:11:35,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:36,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:37,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:37,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:38,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:38,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:38,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:40,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:11:40,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-15 03:11:40,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:11:40,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-15 03:11:40,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:11:40,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:11:40,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:11:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-10-15 03:11:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 03:11:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-15 03:11:40,627 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2020-10-15 03:11:41,659 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-15 03:11:41,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:11:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:11:41,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:11:41,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:11:41,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:11:41,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:11:41,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 03:11:41,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:11:41,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:11:41,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:11:41,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:11:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:11:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:11:42,005 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 03:11:42,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557775887] [2020-10-15 03:11:42,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:11:42,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:11:42,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82595740] [2020-10-15 03:11:42,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:11:42,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:11:42,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:11:42,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:11:42,049 INFO L87 Difference]: Start difference. First operand 2249 states. Second operand 4 states. [2020-10-15 03:12:01,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:12:01,126 INFO L93 Difference]: Finished difference Result 4967 states and 8648 transitions. [2020-10-15 03:12:01,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:12:01,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 290 [2020-10-15 03:12:01,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:12:01,186 INFO L225 Difference]: With dead ends: 4967 [2020-10-15 03:12:01,186 INFO L226 Difference]: Without dead ends: 3595 [2020-10-15 03:12:01,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:12:01,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2020-10-15 03:12:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3503. [2020-10-15 03:12:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3503 states. [2020-10-15 03:12:01,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3503 states to 3503 states and 6085 transitions. [2020-10-15 03:12:01,446 INFO L78 Accepts]: Start accepts. Automaton has 3503 states and 6085 transitions. Word has length 290 [2020-10-15 03:12:01,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:12:01,447 INFO L479 AbstractCegarLoop]: Abstraction has 3503 states and 6085 transitions. [2020-10-15 03:12:01,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:12:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 3503 states and 6085 transitions. [2020-10-15 03:12:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-15 03:12:01,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:12:01,460 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] [2020-10-15 03:12:01,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:12:01,461 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:12:01,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:12:01,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1643787566, now seen corresponding path program 1 times [2020-10-15 03:12:01,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:12:01,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257268314] [2020-10-15 03:12:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:12:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:12:01,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:02,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:02,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:03,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:03,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:03,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:03,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:04,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:04,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:05,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:05,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:06,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:12:06,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-15 03:12:06,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:12:06,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-15 03:12:06,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:12:06,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:12:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:12:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:12:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-15 03:12:06,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-15 03:12:07,923 WARN L193 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-15 03:12:07,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:12:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:12:07,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:07,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:12:07,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:12:07,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:12:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-15 03:12:07,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:12:07,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:12:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:12:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:12:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:12:07,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:12:08,464 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 03:12:08,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257268314] [2020-10-15 03:12:08,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:12:08,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:12:08,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733491173] [2020-10-15 03:12:08,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:12:08,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:12:08,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:12:08,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:12:08,474 INFO L87 Difference]: Start difference. First operand 3503 states and 6085 transitions. Second operand 5 states. [2020-10-15 03:12:31,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:12:31,420 INFO L93 Difference]: Finished difference Result 10390 states and 18064 transitions. [2020-10-15 03:12:31,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:12:31,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2020-10-15 03:12:31,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:12:31,465 INFO L225 Difference]: With dead ends: 10390 [2020-10-15 03:12:31,465 INFO L226 Difference]: Without dead ends: 6908 [2020-10-15 03:12:31,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:12:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6908 states. [2020-10-15 03:12:31,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6908 to 6904. [2020-10-15 03:12:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6904 states. [2020-10-15 03:12:31,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 11974 transitions. [2020-10-15 03:12:31,851 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 11974 transitions. Word has length 306 [2020-10-15 03:12:31,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:12:31,852 INFO L479 AbstractCegarLoop]: Abstraction has 6904 states and 11974 transitions. [2020-10-15 03:12:31,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:12:31,852 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 11974 transitions. [2020-10-15 03:12:31,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-15 03:12:31,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:12:31,872 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] [2020-10-15 03:12:31,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:12:31,873 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:12:31,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:12:31,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1240776009, now seen corresponding path program 1 times [2020-10-15 03:12:31,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:12:31,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988851420] [2020-10-15 03:12:31,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:12:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:12:32,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:32,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:32,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:33,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:33,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:33,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:33,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:34,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:35,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:37,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:12:37,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-15 03:12:37,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:12:37,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:12:37,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:12:37,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:12:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:12:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 03:12:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-15 03:12:37,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:12:37,997 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-15 03:12:38,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:12:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:12:38,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:12:38,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:12:38,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:12:38,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:12:38,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 03:12:38,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:12:38,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:12:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:12:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:12:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:12:38,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:12:38,232 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 03:12:38,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988851420] [2020-10-15 03:12:38,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:12:38,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:12:38,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091662803] [2020-10-15 03:12:38,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:12:38,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:12:38,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:12:38,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:12:38,235 INFO L87 Difference]: Start difference. First operand 6904 states and 11974 transitions. Second operand 4 states. [2020-10-15 03:13:10,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:13:10,161 INFO L93 Difference]: Finished difference Result 20296 states and 35211 transitions. [2020-10-15 03:13:10,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:13:10,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-10-15 03:13:10,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:13:10,233 INFO L225 Difference]: With dead ends: 20296 [2020-10-15 03:13:10,233 INFO L226 Difference]: Without dead ends: 13569 [2020-10-15 03:13:10,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:13:10,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13569 states. [2020-10-15 03:13:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13569 to 13565. [2020-10-15 03:13:10,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13565 states. [2020-10-15 03:13:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13565 states to 13565 states and 23488 transitions. [2020-10-15 03:13:10,749 INFO L78 Accepts]: Start accepts. Automaton has 13565 states and 23488 transitions. Word has length 308 [2020-10-15 03:13:10,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:13:10,750 INFO L479 AbstractCegarLoop]: Abstraction has 13565 states and 23488 transitions. [2020-10-15 03:13:10,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:13:10,750 INFO L276 IsEmpty]: Start isEmpty. Operand 13565 states and 23488 transitions. [2020-10-15 03:13:10,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-15 03:13:10,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:13:10,790 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] [2020-10-15 03:13:10,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:13:10,790 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:13:10,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:13:10,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1227629354, now seen corresponding path program 1 times [2020-10-15 03:13:10,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:13:10,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217466918] [2020-10-15 03:13:10,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:13:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:13:10,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:11,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:11,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:11,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:11,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:12,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:12,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:12,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:13,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:14,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:15,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:13:15,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-15 03:13:15,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:13:15,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:13:15,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:13:15,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:13:15,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:13:15,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 03:13:15,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-15 03:13:15,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:13:16,845 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-15 03:13:16,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:13:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:13:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:16,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:13:16,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:13:16,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:13:16,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 03:13:16,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:13:16,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:13:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:13:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:13:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:13:16,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:13:17,149 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 03:13:17,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217466918] [2020-10-15 03:13:17,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:13:17,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:13:17,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084132640] [2020-10-15 03:13:17,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:13:17,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:13:17,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:13:17,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:13:17,153 INFO L87 Difference]: Start difference. First operand 13565 states and 23488 transitions. Second operand 4 states. [2020-10-15 03:13:51,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:13:51,153 INFO L93 Difference]: Finished difference Result 39963 states and 69216 transitions. [2020-10-15 03:13:51,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 03:13:51,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 309 [2020-10-15 03:13:51,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:13:51,227 INFO L225 Difference]: With dead ends: 39963 [2020-10-15 03:13:51,227 INFO L226 Difference]: Without dead ends: 26673 [2020-10-15 03:13:51,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:13:51,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26673 states. [2020-10-15 03:13:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26673 to 26669. [2020-10-15 03:13:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26669 states. [2020-10-15 03:13:52,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26669 states to 26669 states and 46093 transitions. [2020-10-15 03:13:52,185 INFO L78 Accepts]: Start accepts. Automaton has 26669 states and 46093 transitions. Word has length 309 [2020-10-15 03:13:52,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:13:52,185 INFO L479 AbstractCegarLoop]: Abstraction has 26669 states and 46093 transitions. [2020-10-15 03:13:52,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:13:52,185 INFO L276 IsEmpty]: Start isEmpty. Operand 26669 states and 46093 transitions. [2020-10-15 03:13:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-15 03:13:52,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:13:52,250 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] [2020-10-15 03:13:52,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:13:52,250 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:13:52,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:13:52,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1628934737, now seen corresponding path program 1 times [2020-10-15 03:13:52,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:13:52,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913911862] [2020-10-15 03:13:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:13:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:13:52,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:52,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:52,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:52,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:53,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:53,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:54,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:54,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:54,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:54,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:55,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:57,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:13:57,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-15 03:13:57,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:13:57,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-15 03:13:57,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:13:57,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:13:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:13:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:13:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-15 03:13:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:13:58,494 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-15 03:13:58,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:13:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:13:58,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:13:58,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:13:58,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:13:58,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:13:58,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:13:58,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:13:58,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:13:58,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:13:58,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:13:58,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:13:58,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:13:58,718 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 03:13:58,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913911862] [2020-10-15 03:13:58,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:13:58,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:13:58,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61250441] [2020-10-15 03:13:58,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:13:58,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:13:58,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:13:58,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:13:58,721 INFO L87 Difference]: Start difference. First operand 26669 states and 46093 transitions. Second operand 5 states. [2020-10-15 03:14:29,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:14:29,271 INFO L93 Difference]: Finished difference Result 56015 states and 97004 transitions. [2020-10-15 03:14:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:14:29,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 309 [2020-10-15 03:14:29,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:14:29,331 INFO L225 Difference]: With dead ends: 56015 [2020-10-15 03:14:29,331 INFO L226 Difference]: Without dead ends: 29871 [2020-10-15 03:14:29,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:14:29,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29871 states. [2020-10-15 03:14:30,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29871 to 26742. [2020-10-15 03:14:30,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26742 states. [2020-10-15 03:14:30,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26742 states to 26742 states and 46225 transitions. [2020-10-15 03:14:30,743 INFO L78 Accepts]: Start accepts. Automaton has 26742 states and 46225 transitions. Word has length 309 [2020-10-15 03:14:30,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:14:30,744 INFO L479 AbstractCegarLoop]: Abstraction has 26742 states and 46225 transitions. [2020-10-15 03:14:30,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:14:30,744 INFO L276 IsEmpty]: Start isEmpty. Operand 26742 states and 46225 transitions. [2020-10-15 03:14:30,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-15 03:14:30,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:14:30,789 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] [2020-10-15 03:14:30,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:14:30,790 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:14:30,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:14:30,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1533747486, now seen corresponding path program 1 times [2020-10-15 03:14:30,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:14:30,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844341453] [2020-10-15 03:14:30,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:14:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:14:31,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:31,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:31,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:31,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:32,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:32,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:32,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:32,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:32,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:35,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:35,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:14:35,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-15 03:14:35,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:14:35,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-15 03:14:35,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:14:35,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:14:35,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:14:35,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:14:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-15 03:14:35,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:14:37,137 WARN L193 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-15 03:14:37,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:14:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:14:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:14:37,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:14:37,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:14:37,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:14:37,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:14:37,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:14:37,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:14:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:14:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:14:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:14:37,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:14:37,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:14:37,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844341453] [2020-10-15 03:14:37,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:14:37,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:14:37,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235346865] [2020-10-15 03:14:37,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:14:37,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:14:37,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:14:37,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:14:37,335 INFO L87 Difference]: Start difference. First operand 26742 states and 46225 transitions. Second operand 5 states. [2020-10-15 03:15:05,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:15:05,621 INFO L93 Difference]: Finished difference Result 78876 states and 136378 transitions. [2020-10-15 03:15:05,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:15:05,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2020-10-15 03:15:05,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:15:05,703 INFO L225 Difference]: With dead ends: 78876 [2020-10-15 03:15:05,704 INFO L226 Difference]: Without dead ends: 52564 [2020-10-15 03:15:05,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:15:05,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52564 states. [2020-10-15 03:15:07,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52564 to 52560. [2020-10-15 03:15:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52560 states. [2020-10-15 03:15:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52560 states to 52560 states and 90641 transitions. [2020-10-15 03:15:08,041 INFO L78 Accepts]: Start accepts. Automaton has 52560 states and 90641 transitions. Word has length 312 [2020-10-15 03:15:08,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:15:08,041 INFO L479 AbstractCegarLoop]: Abstraction has 52560 states and 90641 transitions. [2020-10-15 03:15:08,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:15:08,042 INFO L276 IsEmpty]: Start isEmpty. Operand 52560 states and 90641 transitions. [2020-10-15 03:15:08,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-15 03:15:08,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:15:08,104 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] [2020-10-15 03:15:08,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:15:08,105 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:15:08,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:15:08,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1132978187, now seen corresponding path program 1 times [2020-10-15 03:15:08,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:15:08,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381712331] [2020-10-15 03:15:08,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:15:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:15:08,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:08,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:09,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:09,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:09,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:09,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:09,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:10,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:11,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:12,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:12,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:12,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:12,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:13,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:15:13,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-15 03:15:13,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:15:13,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-15 03:15:13,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:15:13,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:15:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:15:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:15:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-15 03:15:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:15:14,362 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2020-10-15 03:15:14,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:15:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:15:14,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:15:14,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:15:14,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:15:14,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:15:14,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 03:15:14,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:15:14,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:15:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:15:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:15:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:15:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:15:14,590 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 03:15:14,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381712331] [2020-10-15 03:15:14,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:15:14,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:15:14,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213633563] [2020-10-15 03:15:14,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:15:14,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:15:14,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:15:14,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:15:14,596 INFO L87 Difference]: Start difference. First operand 52560 states and 90641 transitions. Second operand 5 states.