/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/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:24:54,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:24:54,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:24:54,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:24:54,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:24:54,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:24:54,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:24:54,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:24:54,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:24:54,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:24:54,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:24:54,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:24:54,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:24:54,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:24:54,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:24:54,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:24:54,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:24:54,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:24:54,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:24:54,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:24:54,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:24:54,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:24:54,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:24:54,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:24:54,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:24:54,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:24:54,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:24:54,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:24:54,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:24:54,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:24:54,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:24:54,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:24:54,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:24:54,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:24:54,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:24:54,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:24:54,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:24:54,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:24:54,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:24:54,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:24:54,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:24:54,967 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 02:24:54,988 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:24:54,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:24:54,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:24:54,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:24:54,990 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:24:54,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:24:54,991 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:24:54,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:24:54,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:24:54,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:24:54,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:24:54,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:24:54,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:24:54,992 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:24:54,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:24:54,992 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:24:54,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:24:54,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:24:54,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:24:54,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:24:54,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:24:54,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:24:54,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:24:54,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:24:54,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:24:54,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:24:54,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:24:54,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:24:54,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:24:54,995 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 02:24:55,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:24:55,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:24:55,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:24:55,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:24:55,376 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:24:55,377 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:24:55,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b30e2799f/7d1279cdcd12484c9a2a473329d3a6d0/FLAG597da3bb8 [2020-10-15 02:24:56,135 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:24:56,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:24:56,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b30e2799f/7d1279cdcd12484c9a2a473329d3a6d0/FLAG597da3bb8 [2020-10-15 02:24:56,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b30e2799f/7d1279cdcd12484c9a2a473329d3a6d0 [2020-10-15 02:24:56,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:24:56,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:24:56,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:24:56,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:24:56,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:24:56,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:24:56" (1/1) ... [2020-10-15 02:24:56,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0619bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:56, skipping insertion in model container [2020-10-15 02:24:56,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:24:56" (1/1) ... [2020-10-15 02:24:56,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:24:56,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:24:57,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:24:57,048 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:24:57,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:24:57,197 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:24:57,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57 WrapperNode [2020-10-15 02:24:57,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:24:57,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:24:57,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:24:57,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:24:57,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57" (1/1) ... [2020-10-15 02:24:57,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57" (1/1) ... [2020-10-15 02:24:57,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57" (1/1) ... [2020-10-15 02:24:57,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57" (1/1) ... [2020-10-15 02:24:57,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57" (1/1) ... [2020-10-15 02:24:57,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57" (1/1) ... [2020-10-15 02:24:57,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57" (1/1) ... [2020-10-15 02:24:57,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:24:57,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:24:57,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:24:57,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:24:57,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57" (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 02:24:57,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:24:57,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:24:57,474 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:24:57,474 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:24:57,475 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:24:57,475 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:24:57,475 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:24:57,475 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-15 02:24:57,475 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:24:57,476 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:24:57,476 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:24:57,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:24:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:24:57,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:24:57,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:24:57,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:24:57,477 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:24:57,477 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:24:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:24:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:24:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:24:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:24:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:24:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:24:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:24:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 02:24:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:24:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:24:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:24:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:24:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:24:59,773 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:24:59,773 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:24:59,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:24:59 BoogieIcfgContainer [2020-10-15 02:24:59,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:24:59,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:24:59,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:24:59,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:24:59,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:24:56" (1/3) ... [2020-10-15 02:24:59,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43152a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:24:59, skipping insertion in model container [2020-10-15 02:24:59,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:24:57" (2/3) ... [2020-10-15 02:24:59,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43152a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:24:59, skipping insertion in model container [2020-10-15 02:24:59,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:24:59" (3/3) ... [2020-10-15 02:24:59,791 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:24:59,802 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:24:59,811 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:24:59,825 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:24:59,852 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:24:59,852 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:24:59,852 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:24:59,853 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:24:59,853 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:24:59,853 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:24:59,853 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:24:59,853 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:24:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states. [2020-10-15 02:24:59,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-15 02:24:59,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:24:59,915 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] [2020-10-15 02:24:59,916 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:24:59,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:24:59,922 INFO L82 PathProgramCache]: Analyzing trace with hash 906450296, now seen corresponding path program 1 times [2020-10-15 02:24:59,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:24:59,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263616638] [2020-10-15 02:24:59,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:25:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:00,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:01,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:01,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-15 02:25:01,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:01,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1264 [2020-10-15 02:25:01,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:01,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-15 02:25:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:01,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:25:02,666 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:25:02,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:25:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:02,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:02,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:02,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:25:02,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:02,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:25:02,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:02,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:02,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:02,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:02,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:02,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:02,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:25:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:02,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:02,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:02,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:25:02,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:02,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-15 02:25:02,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:02,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:02,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:02,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:02,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:02,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:03,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-15 02:25:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:03,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:03,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:03,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:25:03,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:25:03,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:03,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:25:03,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:03,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:03,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:25:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:03,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:03,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:03,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:03,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:03,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:25:03,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:03,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:03,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:03,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-15 02:25:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:03,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:03,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:03,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:03,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:03,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:25:03,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:03,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:03,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:03,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-15 02:25:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:03,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:03,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:03,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:03,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:03,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:25:03,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:03,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:03,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:03,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-15 02:25:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:03,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:03,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:03,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:03,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:03,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:25:03,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:03,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:03,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:03,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:03,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-15 02:25:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:03,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:03,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:03,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:03,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:25:03,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:03,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:03,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:03,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-15 02:25:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:03,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:03,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:03,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:03,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:03,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:25:03,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:03,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:03,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:03,496 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 02:25:03,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263616638] [2020-10-15 02:25:03,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:25:03,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 02:25:03,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018657970] [2020-10-15 02:25:03,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:25:03,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:25:03,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:25:03,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:25:03,523 INFO L87 Difference]: Start difference. First operand 747 states. Second operand 8 states. [2020-10-15 02:25:06,325 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:06,926 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:07,509 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:08,082 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:08,684 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:09,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:25:09,590 INFO L93 Difference]: Finished difference Result 989 states and 1744 transitions. [2020-10-15 02:25:09,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 02:25:09,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-10-15 02:25:09,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:25:09,615 INFO L225 Difference]: With dead ends: 989 [2020-10-15 02:25:09,615 INFO L226 Difference]: Without dead ends: 797 [2020-10-15 02:25:09,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:25:09,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-15 02:25:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 742. [2020-10-15 02:25:09,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-15 02:25:09,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1341 transitions. [2020-10-15 02:25:09,778 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1341 transitions. Word has length 182 [2020-10-15 02:25:09,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:25:09,779 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 1341 transitions. [2020-10-15 02:25:09,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:25:09,780 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1341 transitions. [2020-10-15 02:25:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-15 02:25:09,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:25:09,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:25:09,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:25:09,787 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:25:09,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:25:09,787 INFO L82 PathProgramCache]: Analyzing trace with hash 553361914, now seen corresponding path program 1 times [2020-10-15 02:25:09,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:25:09,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260144811] [2020-10-15 02:25:09,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:25:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:10,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:12,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:12,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-15 02:25:12,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:12,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2799 [2020-10-15 02:25:12,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:12,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:25:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-15 02:25:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:25:12,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:13,651 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:25:13,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:25:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:13,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:13,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:13,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:25:13,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:13,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:25:13,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:13,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:13,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:13,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:25:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:13,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:14,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:25:14,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:14,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 638 [2020-10-15 02:25:14,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:14,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:14,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:25:14,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:14,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:25:14,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-15 02:25:14,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-15 02:25:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:14,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:14,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:25:14,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:14,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:25:14,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:14,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:14,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:25:14,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:25:14,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:25:14,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:25:14,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:25:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:14,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:14,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:14,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:25:14,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:14,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:14,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:14,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-15 02:25:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:14,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:14,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:14,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:14,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:25:14,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:14,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:14,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:14,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:14,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:14,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:14,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-15 02:25:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:14,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:14,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:14,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:14,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:25:14,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:14,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:14,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:14,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:14,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:14,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-15 02:25:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:14,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:14,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:14,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:14,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:25:14,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:14,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:14,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-15 02:25:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:14,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:14,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:14,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:14,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:25:14,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:14,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:14,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:14,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:14,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:14,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:14,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-15 02:25:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:14,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:14,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:14,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:14,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:25:14,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:14,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:14,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:14,970 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 02:25:14,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260144811] [2020-10-15 02:25:14,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:25:14,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:25:14,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705474290] [2020-10-15 02:25:14,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:25:14,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:25:14,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:25:14,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:25:14,977 INFO L87 Difference]: Start difference. First operand 742 states and 1341 transitions. Second operand 14 states. [2020-10-15 02:25:23,021 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-15 02:25:23,685 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-15 02:25:24,530 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-15 02:25:25,167 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:25:26,276 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:26,924 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:27,696 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:28,479 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:29,224 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:25:30,154 INFO L93 Difference]: Finished difference Result 987 states and 1736 transitions. [2020-10-15 02:25:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:25:30,155 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 182 [2020-10-15 02:25:30,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:25:30,163 INFO L225 Difference]: With dead ends: 987 [2020-10-15 02:25:30,163 INFO L226 Difference]: Without dead ends: 797 [2020-10-15 02:25:30,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:25:30,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-15 02:25:30,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 742. [2020-10-15 02:25:30,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-15 02:25:30,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1281 transitions. [2020-10-15 02:25:30,300 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1281 transitions. Word has length 182 [2020-10-15 02:25:30,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:25:30,300 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 1281 transitions. [2020-10-15 02:25:30,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:25:30,301 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1281 transitions. [2020-10-15 02:25:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-15 02:25:30,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:25:30,306 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] [2020-10-15 02:25:30,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:25:30,307 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:25:30,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:25:30,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1577718157, now seen corresponding path program 1 times [2020-10-15 02:25:30,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:25:30,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453032956] [2020-10-15 02:25:30,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:25:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:30,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:31,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:31,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:35,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:35,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-15 02:25:35,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:25:35,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-15 02:25:35,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:35,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:35,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:25:35,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-15 02:25:35,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:25:35,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:36,382 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:25:36,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:25:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:36,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:36,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:36,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:25:36,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:36,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:25:36,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:36,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:36,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:36,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:25:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:36,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:36,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:36,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:25:36,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-15 02:25:36,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:36,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:36,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-15 02:25:36,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:36,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:25:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:36,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:36,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:36,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:25:36,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:36,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:25:36,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:36,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:25:36,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:36,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:25:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:36,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:37,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:37,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:37,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:37,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:25:37,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:37,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:25:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:25:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:25:37,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:37,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-15 02:25:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:37,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:37,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:37,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:37,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:37,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:37,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:37,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:37,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:37,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:37,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:25:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:37,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:37,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:37,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:37,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:37,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:25:37,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:37,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:37,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:37,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:37,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:37,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:37,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-15 02:25:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:37,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:37,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:37,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:37,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:37,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:37,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:37,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:37,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:37,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:37,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:37,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:37,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-15 02:25:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:37,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:37,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:37,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:37,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:37,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:37,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:37,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:37,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-15 02:25:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:37,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:37,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:37,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:37,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:37,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:25:37,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:37,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:37,375 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 02:25:37,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453032956] [2020-10-15 02:25:37,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:25:37,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:25:37,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612188113] [2020-10-15 02:25:37,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:25:37,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:25:37,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:25:37,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:25:37,380 INFO L87 Difference]: Start difference. First operand 742 states and 1281 transitions. Second operand 11 states. [2020-10-15 02:25:37,998 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:25:43,990 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:44,262 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-15 02:25:44,712 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:25:45,051 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:45,622 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:25:46,050 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:46,662 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:25:47,083 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:47,695 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:25:48,128 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:25:49,750 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-15 02:25:50,256 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-15 02:25:50,500 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:25:50,770 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:25:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:25:50,929 INFO L93 Difference]: Finished difference Result 1230 states and 2072 transitions. [2020-10-15 02:25:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:25:50,930 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 241 [2020-10-15 02:25:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:25:50,942 INFO L225 Difference]: With dead ends: 1230 [2020-10-15 02:25:50,942 INFO L226 Difference]: Without dead ends: 1046 [2020-10-15 02:25:50,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2020-10-15 02:25:50,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-10-15 02:25:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 927. [2020-10-15 02:25:51,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-10-15 02:25:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1579 transitions. [2020-10-15 02:25:51,110 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1579 transitions. Word has length 241 [2020-10-15 02:25:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:25:51,112 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1579 transitions. [2020-10-15 02:25:51,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:25:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1579 transitions. [2020-10-15 02:25:51,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-15 02:25:51,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:25:51,120 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] [2020-10-15 02:25:51,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:25:51,120 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:25:51,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:25:51,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1674493839, now seen corresponding path program 1 times [2020-10-15 02:25:51,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:25:51,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190283398] [2020-10-15 02:25:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:25:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:51,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:51,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:51,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:52,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:52,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:56,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:56,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-15 02:25:56,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:25:56,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-15 02:25:56,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:56,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:56,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:25:56,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:25:56,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-15 02:25:56,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:57,350 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:25:57,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:25:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:57,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:57,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:57,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:25:57,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:57,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:25:57,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:57,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:57,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:25:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:57,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:58,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:58,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:25:58,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:58,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-15 02:25:58,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:58,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:58,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:25:58,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:58,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:25:58,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:58,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:25:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:58,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:58,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:58,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:25:58,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:25:58,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:58,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:25:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:58,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:25:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:58,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:58,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:58,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:25:58,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:25:58,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:58,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:58,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:25:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:25:58,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:58,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-15 02:25:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:58,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:58,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:58,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:58,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:58,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:58,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:58,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:58,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:58,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:58,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:58,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-15 02:25:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:58,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:58,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:58,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:58,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:58,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:58,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:58,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:58,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:58,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:58,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-15 02:25:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:58,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:58,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:58,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:58,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:58,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:58,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:58,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-15 02:25:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:58,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:58,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:58,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:58,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:58,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:58,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:58,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:58,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-15 02:25:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:58,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:58,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:58,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:58,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:58,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:25:58,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:58,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:58,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:58,977 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 02:25:58,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190283398] [2020-10-15 02:25:58,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:25:58,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:25:58,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711231016] [2020-10-15 02:25:58,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:25:58,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:25:58,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:25:58,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:25:58,980 INFO L87 Difference]: Start difference. First operand 927 states and 1579 transitions. Second operand 11 states. [2020-10-15 02:25:59,638 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:26:00,301 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-15 02:26:00,975 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-15 02:26:03,735 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 368 DAG size of output: 366 [2020-10-15 02:26:18,347 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:26:18,822 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:19,147 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:19,636 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:20,294 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:20,591 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:21,068 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:21,852 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:22,143 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:22,727 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:23,551 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:23,846 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:24,306 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:25,119 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:25,411 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:25,879 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:27,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:26:27,555 INFO L93 Difference]: Finished difference Result 3570 states and 6058 transitions. [2020-10-15 02:26:27,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:26:27,556 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-10-15 02:26:27,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:26:27,570 INFO L225 Difference]: With dead ends: 3570 [2020-10-15 02:26:27,571 INFO L226 Difference]: Without dead ends: 2726 [2020-10-15 02:26:27,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:26:27,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2020-10-15 02:26:28,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2487. [2020-10-15 02:26:28,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2487 states. [2020-10-15 02:26:28,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 4230 transitions. [2020-10-15 02:26:28,042 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 4230 transitions. Word has length 245 [2020-10-15 02:26:28,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:26:28,043 INFO L479 AbstractCegarLoop]: Abstraction has 2487 states and 4230 transitions. [2020-10-15 02:26:28,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:26:28,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 4230 transitions. [2020-10-15 02:26:28,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-15 02:26:28,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:26:28,052 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] [2020-10-15 02:26:28,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:26:28,052 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:26:28,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:26:28,053 INFO L82 PathProgramCache]: Analyzing trace with hash -855225144, now seen corresponding path program 1 times [2020-10-15 02:26:28,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:26:28,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109214813] [2020-10-15 02:26:28,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:26:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:28,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:28,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:28,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:29,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:32,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:33,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:33,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-15 02:26:33,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:26:33,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5166 [2020-10-15 02:26:33,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:33,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:33,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:26:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:26:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-15 02:26:33,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:34,258 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:26:34,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:26:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:34,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:26:34,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:26:34,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:34,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:34,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:26:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:34,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:26:34,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-15 02:26:34,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:26:34,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:26:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:35,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:26:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:35,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:35,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:35,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:26:35,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:35,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:26:35,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:35,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:35,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:35,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:35,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:26:35,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:35,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:26:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:35,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:35,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:26:35,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:35,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:26:35,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:35,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:26:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:26:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:35,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:26:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:35,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:35,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:35,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:35,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:35,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:26:35,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:35,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:35,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-15 02:26:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:35,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:35,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:35,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:35,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:35,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:26:35,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:35,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:35,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:35,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-15 02:26:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:35,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:35,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:35,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:35,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:35,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:26:35,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:35,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:35,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:35,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:35,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-15 02:26:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:35,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:35,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:35,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:35,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:26:35,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:35,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:35,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:35,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-15 02:26:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:35,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:35,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:35,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:35,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:35,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:26:35,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:35,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:35,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:35,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:35,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:35,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:35,451 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 02:26:35,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109214813] [2020-10-15 02:26:35,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:26:35,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:26:35,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312051600] [2020-10-15 02:26:35,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:26:35,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:26:35,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:26:35,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:26:35,454 INFO L87 Difference]: Start difference. First operand 2487 states and 4230 transitions. Second operand 11 states. [2020-10-15 02:26:36,129 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:26:36,741 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-15 02:26:37,458 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-15 02:26:38,180 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:26:49,869 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:26:50,333 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:50,692 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:51,730 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:52,065 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:52,720 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:53,325 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:54,163 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:54,755 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:55,476 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:26:56,086 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:26:57,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:26:57,705 INFO L93 Difference]: Finished difference Result 7862 states and 13329 transitions. [2020-10-15 02:26:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:26:57,712 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 247 [2020-10-15 02:26:57,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:26:57,742 INFO L225 Difference]: With dead ends: 7862 [2020-10-15 02:26:57,742 INFO L226 Difference]: Without dead ends: 5399 [2020-10-15 02:26:57,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-15 02:26:57,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5399 states. [2020-10-15 02:26:58,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5399 to 4938. [2020-10-15 02:26:58,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4938 states. [2020-10-15 02:26:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4938 states to 4938 states and 8319 transitions. [2020-10-15 02:26:58,530 INFO L78 Accepts]: Start accepts. Automaton has 4938 states and 8319 transitions. Word has length 247 [2020-10-15 02:26:58,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:26:58,530 INFO L479 AbstractCegarLoop]: Abstraction has 4938 states and 8319 transitions. [2020-10-15 02:26:58,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:26:58,531 INFO L276 IsEmpty]: Start isEmpty. Operand 4938 states and 8319 transitions. [2020-10-15 02:26:58,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-15 02:26:58,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:26:58,545 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] [2020-10-15 02:26:58,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:26:58,545 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:26:58,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:26:58,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1107345241, now seen corresponding path program 1 times [2020-10-15 02:26:58,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:26:58,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306694103] [2020-10-15 02:26:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:26:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:58,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:59,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:59,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:59,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:59,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:01,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:01,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:01,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:03,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:03,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-15 02:27:03,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:27:03,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-15 02:27:03,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:03,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:03,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:27:03,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:27:03,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-15 02:27:03,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:04,407 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:27:04,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:04,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:04,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:04,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:04,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:04,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:27:04,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:04,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:04,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:04,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:04,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:04,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:04,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:27:04,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:04,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-15 02:27:04,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:04,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:04,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:27:04,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:04,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:27:04,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:04,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:27:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:04,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:04,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:04,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:27:04,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:27:04,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:04,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:27:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:04,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:27:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:04,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:04,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:04,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:27:04,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:04,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:27:04,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:04,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:04,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:04,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:27:04,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:27:04,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:04,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:27:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:04,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:04,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:04,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:04,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:04,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:04,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:04,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:04,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-15 02:27:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:04,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:04,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:04,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:04,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:04,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:04,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:04,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:05,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-15 02:27:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:05,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:05,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:05,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:05,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:27:05,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:05,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:05,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:05,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-15 02:27:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:05,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:05,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:05,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:05,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:27:05,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:05,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:05,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:05,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-15 02:27:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:05,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:05,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:05,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:05,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:27:05,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:05,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:05,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:05,212 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 02:27:05,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306694103] [2020-10-15 02:27:05,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:05,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:27:05,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312641860] [2020-10-15 02:27:05,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:27:05,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:05,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:27:05,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:27:05,214 INFO L87 Difference]: Start difference. First operand 4938 states and 8319 transitions. Second operand 11 states. [2020-10-15 02:27:05,898 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:27:06,570 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-15 02:27:07,742 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-15 02:27:08,397 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:27:20,792 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:27:21,276 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:21,615 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:22,721 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:23,050 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:23,882 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:24,393 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:25,471 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:25,962 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:26,866 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:27,424 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:29,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:27:29,047 INFO L93 Difference]: Finished difference Result 15576 states and 26189 transitions. [2020-10-15 02:27:29,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:27:29,051 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 247 [2020-10-15 02:27:29,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:27:29,094 INFO L225 Difference]: With dead ends: 15576 [2020-10-15 02:27:29,094 INFO L226 Difference]: Without dead ends: 10897 [2020-10-15 02:27:29,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-15 02:27:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2020-10-15 02:27:30,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 10097. [2020-10-15 02:27:30,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10097 states. [2020-10-15 02:27:30,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10097 states to 10097 states and 16879 transitions. [2020-10-15 02:27:30,388 INFO L78 Accepts]: Start accepts. Automaton has 10097 states and 16879 transitions. Word has length 247 [2020-10-15 02:27:30,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:27:30,389 INFO L479 AbstractCegarLoop]: Abstraction has 10097 states and 16879 transitions. [2020-10-15 02:27:30,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:27:30,389 INFO L276 IsEmpty]: Start isEmpty. Operand 10097 states and 16879 transitions. [2020-10-15 02:27:30,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-15 02:27:30,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:30,412 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] [2020-10-15 02:27:30,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:27:30,412 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:30,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:30,412 INFO L82 PathProgramCache]: Analyzing trace with hash 873586225, now seen corresponding path program 1 times [2020-10-15 02:27:30,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:30,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738607624] [2020-10-15 02:27:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:30,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:30,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:31,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:31,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:31,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:33,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:34,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:34,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:35,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:35,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-15 02:27:35,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:27:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-15 02:27:35,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:35,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:27:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:27:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-15 02:27:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:36,428 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:27:36,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:36,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:36,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:36,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:36,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:27:36,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:36,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:36,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:36,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:36,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:36,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:36,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:27:36,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:36,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-15 02:27:36,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:36,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:27:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:27:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:36,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:27:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:36,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:36,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:27:36,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:36,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:27:36,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:36,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:36,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:36,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:36,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:27:36,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:37,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:27:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:37,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:37,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:37,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:27:37,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:37,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:27:37,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:37,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:27:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:27:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:37,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-15 02:27:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:37,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:37,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:37,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:37,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:37,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:27:37,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:37,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:37,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:37,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:37,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:37,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:27:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:37,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:37,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:37,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:27:37,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:37,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:37,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:37,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-15 02:27:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:37,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:37,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:37,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:37,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:37,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:37,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:37,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:37,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:37,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-15 02:27:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:37,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:37,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:37,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:37,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:37,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:37,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:37,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:37,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:37,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-15 02:27:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:37,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:37,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:37,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:37,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:37,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:37,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:37,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:37,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:37,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:37,396 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 02:27:37,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738607624] [2020-10-15 02:27:37,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:37,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:27:37,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550151223] [2020-10-15 02:27:37,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:27:37,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:37,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:27:37,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:27:37,398 INFO L87 Difference]: Start difference. First operand 10097 states and 16879 transitions. Second operand 11 states. [2020-10-15 02:27:38,113 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:27:38,743 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-15 02:27:39,825 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-15 02:27:40,499 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:27:53,635 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:27:54,091 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:54,420 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:55,540 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:55,839 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:56,787 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:57,282 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:58,195 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:58,668 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:59,552 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:00,032 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:01,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:01,939 INFO L93 Difference]: Finished difference Result 30697 states and 51079 transitions. [2020-10-15 02:28:01,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:28:01,940 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 248 [2020-10-15 02:28:01,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:02,007 INFO L225 Difference]: With dead ends: 30697 [2020-10-15 02:28:02,007 INFO L226 Difference]: Without dead ends: 21091 [2020-10-15 02:28:02,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-15 02:28:02,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21091 states. [2020-10-15 02:28:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21091 to 19733. [2020-10-15 02:28:04,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19733 states. [2020-10-15 02:28:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19733 states to 19733 states and 32569 transitions. [2020-10-15 02:28:05,014 INFO L78 Accepts]: Start accepts. Automaton has 19733 states and 32569 transitions. Word has length 248 [2020-10-15 02:28:05,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:05,014 INFO L479 AbstractCegarLoop]: Abstraction has 19733 states and 32569 transitions. [2020-10-15 02:28:05,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:28:05,015 INFO L276 IsEmpty]: Start isEmpty. Operand 19733 states and 32569 transitions. [2020-10-15 02:28:05,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-15 02:28:05,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:05,051 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] [2020-10-15 02:28:05,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:28:05,051 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:05,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:05,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1179163587, now seen corresponding path program 1 times [2020-10-15 02:28:05,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:05,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560586135] [2020-10-15 02:28:05,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:05,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:05,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:05,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:05,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:06,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:10,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:10,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-15 02:28:10,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:28:10,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:28:10,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:10,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:10,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:28:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:28:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-15 02:28:10,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:10,946 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:28:10,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:10,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:10,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:10,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:10,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:10,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:28:10,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:10,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:10,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:10,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:11,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:11,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:11,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:28:11,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:11,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-15 02:28:11,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:11,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:11,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:28:11,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:28:11,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:11,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:28:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:11,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:11,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:11,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:28:11,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:11,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:11,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:11,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:11,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:11,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:28:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:11,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:11,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:11,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:28:11,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:11,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:28:11,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:11,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:11,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:28:11,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:11,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-15 02:28:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:11,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:11,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:11,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:11,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:11,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:11,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:11,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:11,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:11,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-15 02:28:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:11,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:11,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:11,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:11,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:11,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:11,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:11,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:11,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:11,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:11,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:11,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:11,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-15 02:28:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:11,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:11,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:11,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:11,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:11,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:11,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:11,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:11,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:11,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-15 02:28:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:11,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:11,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:11,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:11,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:11,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:11,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:11,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-15 02:28:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:11,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:11,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:11,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:11,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:11,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:28:11,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:11,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:11,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:11,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:11,841 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 02:28:11,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560586135] [2020-10-15 02:28:11,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:11,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:28:11,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815966572] [2020-10-15 02:28:11,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:28:11,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:11,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:28:11,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:28:11,843 INFO L87 Difference]: Start difference. First operand 19733 states and 32569 transitions. Second operand 11 states. [2020-10-15 02:28:12,571 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:28:13,288 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2020-10-15 02:28:14,028 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-15 02:28:16,604 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 367 DAG size of output: 363 [2020-10-15 02:28:39,643 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:28:40,199 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:40,573 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:41,037 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:42,006 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:42,720 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:42,965 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 169