/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_lcr.6_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:31:42,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:31:42,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:31:42,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:31:42,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:31:42,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:31:43,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:31:43,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:31:43,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:31:43,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:31:43,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:31:43,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:31:43,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:31:43,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:31:43,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:31:43,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:31:43,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:31:43,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:31:43,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:31:43,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:31:43,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:31:43,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:31:43,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:31:43,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:31:43,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:31:43,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:31:43,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:31:43,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:31:43,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:31:43,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:31:43,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:31:43,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:31:43,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:31:43,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:31:43,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:31:43,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:31:43,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:31:43,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:31:43,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:31:43,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:31:43,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:31:43,056 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 02:31:43,100 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:31:43,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:31:43,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:31:43,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:31:43,103 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:31:43,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:31:43,103 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:31:43,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:31:43,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:31:43,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:31:43,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:31:43,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:31:43,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:31:43,106 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:31:43,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:31:43,106 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:31:43,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:31:43,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:31:43,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:31:43,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:31:43,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:31:43,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:31:43,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:31:43,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:31:43,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:31:43,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:31:43,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:31:43,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:31:43,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:31:43,109 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 02:31:43,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:31:43,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:31:43,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:31:43,427 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:31:43,428 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:31:43,429 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:31:43,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4bf62ae2/6d922ee80e464206971a24a40ee98fc9/FLAG80cde6049 [2020-10-15 02:31:43,970 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:31:43,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:31:43,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4bf62ae2/6d922ee80e464206971a24a40ee98fc9/FLAG80cde6049 [2020-10-15 02:31:44,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4bf62ae2/6d922ee80e464206971a24a40ee98fc9 [2020-10-15 02:31:44,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:31:44,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:31:44,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:31:44,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:31:44,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:31:44,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:31:44" (1/1) ... [2020-10-15 02:31:44,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2260ab44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44, skipping insertion in model container [2020-10-15 02:31:44,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:31:44" (1/1) ... [2020-10-15 02:31:44,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:31:44,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:31:44,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:31:44,681 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:31:44,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:31:44,773 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:31:44,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44 WrapperNode [2020-10-15 02:31:44,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:31:44,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:31:44,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:31:44,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:31:44,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44" (1/1) ... [2020-10-15 02:31:44,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44" (1/1) ... [2020-10-15 02:31:44,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44" (1/1) ... [2020-10-15 02:31:44,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44" (1/1) ... [2020-10-15 02:31:44,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44" (1/1) ... [2020-10-15 02:31:44,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44" (1/1) ... [2020-10-15 02:31:44,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44" (1/1) ... [2020-10-15 02:31:44,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:31:44,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:31:44,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:31:44,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:31:44,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44" (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 02:31:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:31:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:31:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:31:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:31:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:31:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:31:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:31:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-15 02:31:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-15 02:31:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:31:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:31:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:31:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:31:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:31:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:31:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:31:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:31:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:31:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:31:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:31:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:31:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:31:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:31:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:31:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:31:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:31:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 02:31:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-15 02:31:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:31:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:31:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:31:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:31:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:31:45,715 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:31:45,716 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:31:45,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:31:45 BoogieIcfgContainer [2020-10-15 02:31:45,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:31:45,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:31:45,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:31:45,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:31:45,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:31:44" (1/3) ... [2020-10-15 02:31:45,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbbba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:31:45, skipping insertion in model container [2020-10-15 02:31:45,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:31:44" (2/3) ... [2020-10-15 02:31:45,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbbba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:31:45, skipping insertion in model container [2020-10-15 02:31:45,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:31:45" (3/3) ... [2020-10-15 02:31:45,730 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:31:45,738 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:31:45,746 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:31:45,760 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:31:45,786 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:31:45,786 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:31:45,786 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:31:45,787 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:31:45,787 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:31:45,787 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:31:45,787 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:31:45,788 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:31:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-10-15 02:31:45,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-15 02:31:45,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:31:45,826 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] [2020-10-15 02:31:45,827 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:31:45,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:31:45,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1505797224, now seen corresponding path program 1 times [2020-10-15 02:31:45,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:31:45,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595439010] [2020-10-15 02:31:45,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:31:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:46,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:46,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:46,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:31:46,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:46,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-15 02:31:46,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:46,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:46,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:46,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:31:46,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:46,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:31:46,876 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:31:46,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:46,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:46,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:46,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:46,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:46,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:31:46,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:46,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:46,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:46,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:46,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:46,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:46,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:46,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:46,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:46,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:31:46,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:46,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:46,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:46,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:46,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:46,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:46,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:31:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:46,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:46,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:46,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:46,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:46,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:46,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:46,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:46,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:31:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:46,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:46,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:31:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:46,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:46,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:46,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:46,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:46,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:31:46,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:46,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:47,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:31:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:47,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:47,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:47,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:47,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:31:47,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:47,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:47,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:47,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:47,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:47,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:31:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:47,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:47,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:47,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:47,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:47,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:47,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:47,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:47,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:47,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:47,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:31:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:47,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:47,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:47,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:47,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:31:47,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:47,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:47,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:47,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:47,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:47,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:47,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:31:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:47,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:47,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:47,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:47,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:47,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:31:47,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:47,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:47,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:47,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:31:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:47,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:47,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:47,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:47,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:47,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:31:47,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:47,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:47,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 24 [2020-10-15 02:31:47,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:31:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:47,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:47,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:47,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:47,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:47,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:47,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:47,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:31:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:47,252 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 02:31:47,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595439010] [2020-10-15 02:31:47,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:31:47,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:31:47,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067072756] [2020-10-15 02:31:47,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:31:47,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:47,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:31:47,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:31:47,280 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 9 states. [2020-10-15 02:31:48,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:31:48,508 INFO L93 Difference]: Finished difference Result 238 states and 355 transitions. [2020-10-15 02:31:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 02:31:48,510 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-15 02:31:48,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:31:48,524 INFO L225 Difference]: With dead ends: 238 [2020-10-15 02:31:48,524 INFO L226 Difference]: Without dead ends: 144 [2020-10-15 02:31:48,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:31:48,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-15 02:31:48,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-15 02:31:48,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-15 02:31:48,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 219 transitions. [2020-10-15 02:31:48,593 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 219 transitions. Word has length 74 [2020-10-15 02:31:48,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:31:48,593 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 219 transitions. [2020-10-15 02:31:48,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:31:48,594 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 219 transitions. [2020-10-15 02:31:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-15 02:31:48,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:31:48,598 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] [2020-10-15 02:31:48,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:31:48,598 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:31:48,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:31:48,599 INFO L82 PathProgramCache]: Analyzing trace with hash 2066497002, now seen corresponding path program 1 times [2020-10-15 02:31:48,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:31:48,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258005471] [2020-10-15 02:31:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:31:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:48,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:31:49,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 716 [2020-10-15 02:31:49,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:31:49,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:31:49,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:31:49,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:49,578 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:31:49,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:49,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:31:49,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:49,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:49,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:31:49,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:49,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:49,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:49,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:31:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:49,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:31:49,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:31:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:49,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:31:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:49,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:49,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:49,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:31:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:49,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:49,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:49,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:49,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:49,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:49,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:31:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:49,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:49,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:49,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:49,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:31:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:49,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:49,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:49,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:49,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:31:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:49,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:49,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:49,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:49,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:49,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:49,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:31:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:49,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:49,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:49,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:49,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:31:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:49,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:49,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:49,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:49,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:49,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:49,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:49,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:31:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:49,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:49,902 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 02:31:49,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258005471] [2020-10-15 02:31:49,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:31:49,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 02:31:49,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153050887] [2020-10-15 02:31:49,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:31:49,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:49,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:31:49,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:31:49,907 INFO L87 Difference]: Start difference. First operand 144 states and 219 transitions. Second operand 15 states. [2020-10-15 02:31:50,102 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:31:50,278 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:31:50,588 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:31:50,774 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:31:52,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:31:52,560 INFO L93 Difference]: Finished difference Result 236 states and 347 transitions. [2020-10-15 02:31:52,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:31:52,560 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2020-10-15 02:31:52,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:31:52,563 INFO L225 Difference]: With dead ends: 236 [2020-10-15 02:31:52,563 INFO L226 Difference]: Without dead ends: 144 [2020-10-15 02:31:52,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:31:52,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-15 02:31:52,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-15 02:31:52,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-15 02:31:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 179 transitions. [2020-10-15 02:31:52,591 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 179 transitions. Word has length 74 [2020-10-15 02:31:52,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:31:52,591 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 179 transitions. [2020-10-15 02:31:52,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:31:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 179 transitions. [2020-10-15 02:31:52,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-15 02:31:52,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:31:52,594 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] [2020-10-15 02:31:52,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:31:52,594 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:31:52,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:31:52,595 INFO L82 PathProgramCache]: Analyzing trace with hash 98352937, now seen corresponding path program 1 times [2020-10-15 02:31:52,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:31:52,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750393225] [2020-10-15 02:31:52,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:31:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:52,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:52,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:52,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:57,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:57,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-15 02:31:57,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:31:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:31:57,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:57,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:31:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:31:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 02:31:57,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:57,845 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:31:57,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:57,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:57,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:57,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:57,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:57,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:31:57,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:57,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:57,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:57,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:57,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:57,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:31:57,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:57,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-15 02:31:57,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:57,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:57,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:31:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:31:57,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:58,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:31:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:58,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:58,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:58,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:58,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:58,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:58,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:58,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:58,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:58,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:58,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:31:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:58,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:58,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:58,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:58,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:31:58,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:58,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:58,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:58,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:31:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:58,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:58,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:58,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:58,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:31:58,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:58,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:58,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:58,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:31:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:58,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:58,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:58,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:58,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:58,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:31:58,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:58,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:58,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:58,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:58,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:58,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:58,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:31:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:58,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:58,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:58,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:58,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:58,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:31:58,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:58,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:58,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:58,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:58,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:58,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:58,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:31:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:58,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:58,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:58,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:58,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:31:58,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:58,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:58,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:58,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:58,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:58,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:31:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:58,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:58,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:58,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:58,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:58,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:31:58,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:58,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:58,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:58,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:58,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:58,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:58,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:31:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:58,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:58,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:58,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:58,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:58,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:58,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:58,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:31:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:31:58,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:58,620 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 02:31:58,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750393225] [2020-10-15 02:31:58,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:31:58,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-15 02:31:58,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119561798] [2020-10-15 02:31:58,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 02:31:58,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:58,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 02:31:58,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:31:58,626 INFO L87 Difference]: Start difference. First operand 144 states and 179 transitions. Second operand 22 states. [2020-10-15 02:31:59,074 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-15 02:31:59,252 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-15 02:31:59,404 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:31:59,559 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:31:59,750 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:31:59,935 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:32:00,286 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-15 02:32:00,651 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-15 02:32:01,214 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-15 02:32:01,988 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-15 02:32:03,060 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-15 02:32:04,368 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-15 02:32:05,957 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:32:06,145 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:32:06,328 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:32:06,481 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:32:06,638 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:32:06,796 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:32:17,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:32:17,132 INFO L93 Difference]: Finished difference Result 1310 states and 1845 transitions. [2020-10-15 02:32:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2020-10-15 02:32:17,134 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 113 [2020-10-15 02:32:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:32:17,149 INFO L225 Difference]: With dead ends: 1310 [2020-10-15 02:32:17,149 INFO L226 Difference]: Without dead ends: 1224 [2020-10-15 02:32:17,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7625 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=3474, Invalid=17406, Unknown=0, NotChecked=0, Total=20880 [2020-10-15 02:32:17,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-10-15 02:32:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1200. [2020-10-15 02:32:17,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1200 states. [2020-10-15 02:32:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1696 transitions. [2020-10-15 02:32:17,301 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1696 transitions. Word has length 113 [2020-10-15 02:32:17,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:32:17,302 INFO L479 AbstractCegarLoop]: Abstraction has 1200 states and 1696 transitions. [2020-10-15 02:32:17,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 02:32:17,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1696 transitions. [2020-10-15 02:32:17,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:32:17,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:32:17,309 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] [2020-10-15 02:32:17,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:32:17,309 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:32:17,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:32:17,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1085627425, now seen corresponding path program 1 times [2020-10-15 02:32:17,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:32:17,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596110344] [2020-10-15 02:32:17,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:32:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:17,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:17,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:18,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:20,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:20,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:32:20,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:32:20,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3446 [2020-10-15 02:32:20,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:20,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:32:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:32:20,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-15 02:32:20,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:21,006 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:32:21,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:32:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:32:21,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:32:21,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:21,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:21,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:21,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:21,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:32:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:32:21,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 02:32:21,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:32:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:32:21,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:21,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:32:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:32:21,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:32:21,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:21,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:21,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:32:21,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:21,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:32:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:21,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:32:21,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:21,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:21,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:21,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:21,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:32:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:21,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:32:21,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:21,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:21,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:32:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:21,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:32:21,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:21,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:21,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:21,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:21,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:32:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:21,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:32:21,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:21,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:21,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:21,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:21,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:32:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:21,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:32:21,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:21,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:32:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:21,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:32:21,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:32:21,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:21,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:21,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:21,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:32:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:21,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:21,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:21,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:32:21,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:21,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:32:21,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:21,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:32:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:32:21,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:21,745 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 02:32:21,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596110344] [2020-10-15 02:32:21,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:32:21,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-15 02:32:21,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829608809] [2020-10-15 02:32:21,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 02:32:21,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:32:21,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 02:32:21,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:32:21,748 INFO L87 Difference]: Start difference. First operand 1200 states and 1696 transitions. Second operand 22 states. [2020-10-15 02:32:22,007 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:32:22,226 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:32:22,403 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:32:22,595 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:32:22,797 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:32:22,999 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:32:23,697 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:32:24,444 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:32:25,548 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:32:27,003 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:32:27,696 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-15 02:32:28,999 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:32:29,901 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-15 02:32:31,478 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:32:32,877 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-15 02:32:37,597 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-15 02:32:38,685 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-15 02:32:39,482 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-15 02:32:39,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:32:39,888 INFO L93 Difference]: Finished difference Result 2921 states and 4186 transitions. [2020-10-15 02:32:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-10-15 02:32:39,890 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-15 02:32:39,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:32:39,912 INFO L225 Difference]: With dead ends: 2921 [2020-10-15 02:32:39,912 INFO L226 Difference]: Without dead ends: 1779 [2020-10-15 02:32:39,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7141 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=3301, Invalid=16159, Unknown=0, NotChecked=0, Total=19460 [2020-10-15 02:32:39,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2020-10-15 02:32:40,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1635. [2020-10-15 02:32:40,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1635 states. [2020-10-15 02:32:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2338 transitions. [2020-10-15 02:32:40,078 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2338 transitions. Word has length 115 [2020-10-15 02:32:40,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:32:40,079 INFO L479 AbstractCegarLoop]: Abstraction has 1635 states and 2338 transitions. [2020-10-15 02:32:40,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 02:32:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2338 transitions. [2020-10-15 02:32:40,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:32:40,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:32:40,085 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] [2020-10-15 02:32:40,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:32:40,085 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:32:40,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:32:40,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1921637415, now seen corresponding path program 1 times [2020-10-15 02:32:40,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:32:40,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313610565] [2020-10-15 02:32:40,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:32:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:40,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:40,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:40,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:41,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:41,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:44,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:44,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:32:44,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:32:44,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4636 [2020-10-15 02:32:44,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:44,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:44,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:32:44,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:32:44,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-15 02:32:44,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:44,936 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:32:44,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:32:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:44,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:44,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:44,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:32:44,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:44,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:32:44,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:44,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:44,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:44,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:44,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:44,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:44,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:32:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:44,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:44,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:44,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:32:44,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:44,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:32:44,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:44,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:44,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:44,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:44,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:32:44,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:44,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:32:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:44,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:44,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:44,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:32:44,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:44,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:44,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:44,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:32:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:45,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:32:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:45,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:45,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:45,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:45,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:45,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:32:45,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:45,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:32:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:32:45,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:45,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:32:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:45,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:45,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:45,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:45,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:32:45,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:45,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:45,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:45,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:32:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:45,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:45,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:45,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:45,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:45,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:32:45,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:45,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:45,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:45,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:32:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:45,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:45,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:45,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:45,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:45,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:32:45,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:45,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:45,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:45,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:45,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:45,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:45,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:32:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:45,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:45,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:45,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:45,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:45,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:32:45,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:45,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:45,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:45,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:45,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:32:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:45,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:45,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:45,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:45,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:45,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:32:45,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:45,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:45,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:45,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:45,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:45,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:32:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:45,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:45,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:45,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:45,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:32:45,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:32:45,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:32:45,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:45,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:45,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:45,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:32:45,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:32:45,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:45,309 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 02:32:45,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313610565] [2020-10-15 02:32:45,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:32:45,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:32:45,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564329060] [2020-10-15 02:32:45,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:32:45,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:32:45,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:32:45,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:32:45,312 INFO L87 Difference]: Start difference. First operand 1635 states and 2338 transitions. Second operand 14 states. [2020-10-15 02:32:45,481 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:32:46,111 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:32:49,189 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:32:50,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:32:50,485 INFO L93 Difference]: Finished difference Result 7521 states and 10876 transitions. [2020-10-15 02:32:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-15 02:32:50,487 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 115 [2020-10-15 02:32:50,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:32:50,525 INFO L225 Difference]: With dead ends: 7521 [2020-10-15 02:32:50,526 INFO L226 Difference]: Without dead ends: 5944 [2020-10-15 02:32:50,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=375, Invalid=1431, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 02:32:50,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2020-10-15 02:32:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5938. [2020-10-15 02:32:51,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5938 states. [2020-10-15 02:32:51,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 8476 transitions. [2020-10-15 02:32:51,102 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 8476 transitions. Word has length 115 [2020-10-15 02:32:51,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:32:51,104 INFO L479 AbstractCegarLoop]: Abstraction has 5938 states and 8476 transitions. [2020-10-15 02:32:51,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:32:51,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 8476 transitions. [2020-10-15 02:32:51,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:32:51,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:32:51,111 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] [2020-10-15 02:32:51,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:32:51,112 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:32:51,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:32:51,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1912732829, now seen corresponding path program 1 times [2020-10-15 02:32:51,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:32:51,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593056868] [2020-10-15 02:32:51,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:32:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:51,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:51,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:51,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:51,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:51,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:54,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:32:56,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:32:56,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:32:56,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:32:56,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:32:56,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:32:56,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:56,369 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:32:56,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:32:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:32:56,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:32:56,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:56,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:56,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:32:56,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:56,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:32:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:32:56,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:32:56,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:32:56,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:56,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 02:32:56,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:56,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:32:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:32:56,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:56,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:56,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:56,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:32:56,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:56,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:32:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:56,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:32:56,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:56,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:32:56,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:32:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:56,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:32:56,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:56,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:56,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:32:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:56,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:32:56,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:56,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:32:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:56,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:32:56,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:56,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:56,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:32:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:32:56,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:32:56,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:32:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:32:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:32:56,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:56,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:32:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:32:56,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:32:56,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:32:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:32:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:32:56,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:56,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-15 02:32:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:32:56,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:32:56,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:32:56,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:32:56,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:32:56,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:32:56,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:32:56,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:32:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:32:56,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:32:56,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:32:56,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:32:56,856 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 02:32:56,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593056868] [2020-10-15 02:32:56,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:32:56,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 02:32:56,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775932589] [2020-10-15 02:32:56,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:32:56,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:32:56,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:32:56,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:32:56,859 INFO L87 Difference]: Start difference. First operand 5938 states and 8476 transitions. Second operand 16 states. [2020-10-15 02:32:57,288 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 144 [2020-10-15 02:32:57,454 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:32:58,055 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 146 [2020-10-15 02:32:58,204 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-15 02:32:58,444 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-15 02:32:58,712 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-15 02:32:58,955 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-15 02:32:59,195 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-15 02:32:59,565 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 148 [2020-10-15 02:32:59,747 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-15 02:33:00,093 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-15 02:33:00,324 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-15 02:33:00,550 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-15 02:33:00,777 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-15 02:33:01,009 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-15 02:33:01,256 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-15 02:33:01,431 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-15 02:33:01,602 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-15 02:33:01,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:33:01,936 INFO L93 Difference]: Finished difference Result 12810 states and 18173 transitions. [2020-10-15 02:33:01,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:33:01,936 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 115 [2020-10-15 02:33:01,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:33:01,982 INFO L225 Difference]: With dead ends: 12810 [2020-10-15 02:33:01,982 INFO L226 Difference]: Without dead ends: 6930 [2020-10-15 02:33:02,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=381, Invalid=1025, Unknown=0, NotChecked=0, Total=1406 [2020-10-15 02:33:02,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2020-10-15 02:33:02,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 6552. [2020-10-15 02:33:02,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6552 states. [2020-10-15 02:33:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 9323 transitions. [2020-10-15 02:33:02,506 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 9323 transitions. Word has length 115 [2020-10-15 02:33:02,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:33:02,506 INFO L479 AbstractCegarLoop]: Abstraction has 6552 states and 9323 transitions. [2020-10-15 02:33:02,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:33:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 9323 transitions. [2020-10-15 02:33:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:33:02,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:33:02,511 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] [2020-10-15 02:33:02,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:33:02,511 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:33:02,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:33:02,511 INFO L82 PathProgramCache]: Analyzing trace with hash 389191477, now seen corresponding path program 1 times [2020-10-15 02:33:02,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:33:02,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333959666] [2020-10-15 02:33:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:33:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:02,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:02,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:02,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:02,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:03,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:07,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:07,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:07,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:33:07,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:33:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:33:07,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:07,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:33:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:33:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 02:33:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:07,750 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:33:07,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:33:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:07,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:07,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:07,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:33:07,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:07,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:33:07,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:07,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:07,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:33:07,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:07,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:33:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:07,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:07,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:07,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:33:07,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:07,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:33:07,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:07,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:07,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:33:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 02:33:07,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:07,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:33:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:07,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:07,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:07,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:33:07,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:07,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:33:07,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:07,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:07,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:07,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:07,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:33:07,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:07,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:33:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:07,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:07,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:07,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:07,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:07,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:33:07,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:07,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:07,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:33:07,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:07,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:33:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:07,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:07,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:07,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:07,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:07,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:33:07,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:07,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:33:07,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:08,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:33:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:08,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:08,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:08,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:08,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:08,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:33:08,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:08,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:08,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:33:08,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:08,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:33:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:08,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:08,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:08,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:08,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:08,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:33:08,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:08,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:33:08,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:08,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:33:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:08,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:08,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:08,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:33:08,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:08,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:33:08,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:08,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:33:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:33:08,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:08,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-15 02:33:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:08,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:08,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:08,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:08,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:08,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:33:08,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:08,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:08,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:08,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:33:08,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:08,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:08,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-15 02:33:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:08,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:08,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:08,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:33:08,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:08,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:33:08,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:08,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:08,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:08,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:33:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:08,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:08,279 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 02:33:08,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333959666] [2020-10-15 02:33:08,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:33:08,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 02:33:08,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240827247] [2020-10-15 02:33:08,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:33:08,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:33:08,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:33:08,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:33:08,284 INFO L87 Difference]: Start difference. First operand 6552 states and 9323 transitions. Second operand 16 states. [2020-10-15 02:33:08,488 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:33:08,659 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:33:09,081 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:33:09,902 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:33:11,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:33:11,870 INFO L93 Difference]: Finished difference Result 13908 states and 19650 transitions. [2020-10-15 02:33:11,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:33:11,871 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 115 [2020-10-15 02:33:11,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:33:11,916 INFO L225 Difference]: With dead ends: 13908 [2020-10-15 02:33:11,916 INFO L226 Difference]: Without dead ends: 7769 [2020-10-15 02:33:11,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=359, Invalid=973, Unknown=0, NotChecked=0, Total=1332 [2020-10-15 02:33:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7769 states. [2020-10-15 02:33:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7769 to 6839. [2020-10-15 02:33:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6839 states. [2020-10-15 02:33:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6839 states to 6839 states and 9704 transitions. [2020-10-15 02:33:12,472 INFO L78 Accepts]: Start accepts. Automaton has 6839 states and 9704 transitions. Word has length 115 [2020-10-15 02:33:12,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:33:12,473 INFO L479 AbstractCegarLoop]: Abstraction has 6839 states and 9704 transitions. [2020-10-15 02:33:12,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:33:12,473 INFO L276 IsEmpty]: Start isEmpty. Operand 6839 states and 9704 transitions. [2020-10-15 02:33:12,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:33:12,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:33:12,476 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] [2020-10-15 02:33:12,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:33:12,477 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:33:12,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:33:12,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1595032643, now seen corresponding path program 1 times [2020-10-15 02:33:12,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:33:12,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118237359] [2020-10-15 02:33:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:33:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:12,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:12,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:12,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:12,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:13,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:16,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:33:17,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:33:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:33:17,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:33:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:33:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-15 02:33:17,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:17,750 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:33:17,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:33:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:33:17,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:33:17,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:17,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:17,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:33:17,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:17,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:33:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:33:17,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:33:17,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:33:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:17,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 02:33:17,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:33:17,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:33:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:33:17,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:33:17,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:33:17,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:17,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:33:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:17,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:33:17,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:33:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:17,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:33:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:17,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:33:17,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:33:17,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:17,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:33:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:17,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:17,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:17,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:17,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:17,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:33:17,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:17,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:17,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:17,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:17,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:33:17,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:18,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:33:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:18,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:18,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:18,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:33:18,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:18,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:33:18,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:18,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:33:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:33:18,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:18,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:33:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:18,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:18,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:18,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:18,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:18,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:33:18,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:18,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:33:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:18,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:18,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-15 02:33:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:18,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:18,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:18,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:18,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:18,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:33:18,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:18,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:18,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:18,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:33:18,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:18,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:33:18,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-15 02:33:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:18,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:18,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:33:18,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:33:18,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:18,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:33:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:18,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:18,177 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 02:33:18,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118237359] [2020-10-15 02:33:18,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:33:18,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 02:33:18,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996829720] [2020-10-15 02:33:18,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:33:18,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:33:18,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:33:18,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:33:18,183 INFO L87 Difference]: Start difference. First operand 6839 states and 9704 transitions. Second operand 16 states. [2020-10-15 02:33:18,493 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 144 [2020-10-15 02:33:18,659 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:33:19,240 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 146 [2020-10-15 02:33:19,389 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-15 02:33:19,620 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-15 02:33:19,862 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-15 02:33:20,218 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 148 [2020-10-15 02:33:20,400 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-15 02:33:20,586 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-15 02:33:20,790 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-15 02:33:21,099 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-15 02:33:21,302 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-15 02:33:21,503 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-15 02:33:21,719 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-15 02:33:21,888 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-15 02:33:22,121 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-15 02:33:22,338 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-15 02:33:22,588 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-15 02:33:22,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:33:22,949 INFO L93 Difference]: Finished difference Result 15821 states and 22358 transitions. [2020-10-15 02:33:22,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:33:22,950 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 115 [2020-10-15 02:33:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:33:22,991 INFO L225 Difference]: With dead ends: 15821 [2020-10-15 02:33:22,991 INFO L226 Difference]: Without dead ends: 9240 [2020-10-15 02:33:23,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=381, Invalid=1025, Unknown=0, NotChecked=0, Total=1406 [2020-10-15 02:33:23,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9240 states. [2020-10-15 02:33:23,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9240 to 7026. [2020-10-15 02:33:23,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7026 states. [2020-10-15 02:33:23,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 9955 transitions. [2020-10-15 02:33:23,455 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 9955 transitions. Word has length 115 [2020-10-15 02:33:23,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:33:23,456 INFO L479 AbstractCegarLoop]: Abstraction has 7026 states and 9955 transitions. [2020-10-15 02:33:23,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:33:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 9955 transitions. [2020-10-15 02:33:23,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:33:23,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:33:23,458 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] [2020-10-15 02:33:23,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:33:23,459 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:33:23,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:33:23,459 INFO L82 PathProgramCache]: Analyzing trace with hash 480533695, now seen corresponding path program 1 times [2020-10-15 02:33:23,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:33:23,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569123331] [2020-10-15 02:33:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:33:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:23,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:23,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:23,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:23,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:25,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:28,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:28,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:33:28,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:33:28,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:33:28,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:28,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:33:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:33:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-15 02:33:28,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:28,668 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:33:28,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:33:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:28,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:28,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:28,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:33:28,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:28,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:33:28,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:28,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:28,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:28,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:28,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:28,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:28,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:33:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:28,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:28,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:28,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:33:28,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:33:28,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:28,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:33:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:33:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:28,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:33:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:28,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:28,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:28,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:33:28,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:33:28,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:28,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:33:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:28,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:33:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:28,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:28,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:28,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:28,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:28,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:33:28,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:28,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:28,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:28,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:28,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:33:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:28,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:28,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:28,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:28,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:33:28,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:28,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:28,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:28,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:33:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:28,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:28,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:28,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:33:28,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:28,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:33:28,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:28,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:33:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:33:28,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:29,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:33:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:29,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:29,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:29,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:29,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:29,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:33:29,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:29,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:29,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:29,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:33:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:29,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:29,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:29,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:33:29,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:29,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:29,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:29,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-15 02:33:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:29,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:29,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:29,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:29,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:29,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:33:29,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:29,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:29,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:29,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-15 02:33:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:29,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:29,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:29,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:33:29,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:29,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:33:29,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:29,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:33:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:33:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:29,260 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 02:33:29,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569123331] [2020-10-15 02:33:29,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:33:29,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-15 02:33:29,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611819000] [2020-10-15 02:33:29,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 02:33:29,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:33:29,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 02:33:29,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:33:29,262 INFO L87 Difference]: Start difference. First operand 7026 states and 9955 transitions. Second operand 22 states. [2020-10-15 02:33:29,690 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 147 [2020-10-15 02:33:29,867 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-15 02:33:30,035 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:33:30,206 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:33:30,387 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:33:30,578 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:33:30,892 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-15 02:33:31,289 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-15 02:33:31,464 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:33:32,090 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-15 02:33:32,246 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:33:32,643 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-15 02:33:33,077 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-15 02:33:33,742 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-15 02:33:34,379 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-15 02:33:35,285 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 153 [2020-10-15 02:33:35,966 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-15 02:33:36,693 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-15 02:33:37,260 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 02:33:37,606 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-15 02:33:37,887 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 02:33:38,183 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-15 02:33:38,528 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-15 02:33:38,889 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 151 [2020-10-15 02:33:39,169 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2020-10-15 02:33:39,368 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 02:33:39,686 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-10-15 02:33:39,976 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-15 02:33:40,304 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-15 02:33:40,685 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 151 [2020-10-15 02:33:40,984 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-10-15 02:33:41,177 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2020-10-15 02:33:41,372 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 02:33:41,672 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-15 02:33:41,979 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-10-15 02:33:42,170 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-15 02:33:42,787 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 150 [2020-10-15 02:33:43,521 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2020-10-15 02:33:43,720 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-15 02:33:43,903 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-15 02:33:44,321 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-15 02:33:44,523 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-10-15 02:33:44,712 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2020-10-15 02:33:45,004 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 02:33:45,321 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-15 02:33:45,522 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-10-15 02:33:45,712 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-15 02:33:46,152 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-15 02:33:46,362 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-10-15 02:33:46,553 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2020-10-15 02:33:46,981 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-15 02:33:47,187 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-10-15 02:33:47,610 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-15 02:33:47,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:33:47,888 INFO L93 Difference]: Finished difference Result 14805 states and 21141 transitions. [2020-10-15 02:33:47,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2020-10-15 02:33:47,890 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-15 02:33:47,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:33:47,942 INFO L225 Difference]: With dead ends: 14805 [2020-10-15 02:33:47,943 INFO L226 Difference]: Without dead ends: 11526 [2020-10-15 02:33:47,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3528 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=2099, Invalid=9031, Unknown=0, NotChecked=0, Total=11130 [2020-10-15 02:33:47,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11526 states. [2020-10-15 02:33:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11526 to 11224. [2020-10-15 02:33:48,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11224 states. [2020-10-15 02:33:48,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11224 states to 11224 states and 16067 transitions. [2020-10-15 02:33:48,720 INFO L78 Accepts]: Start accepts. Automaton has 11224 states and 16067 transitions. Word has length 115 [2020-10-15 02:33:48,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:33:48,720 INFO L479 AbstractCegarLoop]: Abstraction has 11224 states and 16067 transitions. [2020-10-15 02:33:48,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 02:33:48,720 INFO L276 IsEmpty]: Start isEmpty. Operand 11224 states and 16067 transitions. [2020-10-15 02:33:48,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:33:48,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:33:48,723 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] [2020-10-15 02:33:48,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:33:48,724 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:33:48,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:33:48,724 INFO L82 PathProgramCache]: Analyzing trace with hash -2005537987, now seen corresponding path program 1 times [2020-10-15 02:33:48,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:33:48,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493493555] [2020-10-15 02:33:48,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:33:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:48,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:48,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:48,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:48,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:50,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:52,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:53,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:53,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:33:53,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:33:53,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:33:53,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:53,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:33:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:33:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-15 02:33:53,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:53,935 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:33:53,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:33:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:53,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:53,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:53,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:33:53,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:53,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:33:53,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:53,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:53,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:33:53,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:53,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:33:53,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:53,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:33:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:53,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:53,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:53,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:33:53,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:53,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:33:53,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:53,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:53,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:33:53,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:53,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:33:53,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:54,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:33:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:54,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:54,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:54,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:33:54,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:33:54,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:54,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:33:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:54,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:33:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:54,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:54,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:54,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:54,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:54,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:33:54,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:54,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:54,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:54,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:54,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:54,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:54,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:33:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:54,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:54,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:54,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:33:54,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:54,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:33:54,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:54,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:33:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:33:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:33:54,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:54,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:33:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:54,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:54,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:54,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:54,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:54,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:33:54,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:54,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:54,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:54,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:54,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:33:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:54,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:54,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:54,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:54,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:33:54,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:54,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:54,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:54,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:54,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:33:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:54,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:54,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:54,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:54,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:54,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:33:54,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:54,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:54,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:54,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:54,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:54,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:54,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-15 02:33:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:54,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:54,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:54,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:33:54,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:54,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:33:54,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:54,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:33:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:33:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:33:54,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:54,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-15 02:33:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:33:54,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:33:54,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:33:54,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:33:54,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:33:54,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:33:54,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:33:54,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:33:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:33:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:33:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:33:54,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:33:54,530 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 02:33:54,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493493555] [2020-10-15 02:33:54,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:33:54,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-15 02:33:54,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221061303] [2020-10-15 02:33:54,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 02:33:54,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:33:54,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 02:33:54,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:33:54,532 INFO L87 Difference]: Start difference. First operand 11224 states and 16067 transitions. Second operand 22 states. [2020-10-15 02:33:54,947 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-15 02:33:55,129 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:33:55,296 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:33:55,469 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:33:55,657 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:33:55,851 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:33:56,203 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-15 02:33:56,615 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-15 02:33:56,776 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:33:57,225 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-15 02:33:57,564 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-15 02:33:58,048 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-15 02:33:58,380 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-15 02:33:58,615 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-15 02:33:59,034 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-15 02:33:59,283 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-15 02:33:59,779 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-15 02:34:00,024 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-15 02:34:00,954 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-15 02:34:01,315 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-15 02:34:01,607 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-15 02:34:02,052 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-15 02:34:02,270 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-15 02:34:02,751 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 152 [2020-10-15 02:34:03,020 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2020-10-15 02:34:03,753 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-15 02:34:04,321 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2020-10-15 02:34:05,763 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 152 [2020-10-15 02:34:06,116 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 150 [2020-10-15 02:34:06,480 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 151 [2020-10-15 02:34:06,672 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:34:08,028 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-15 02:34:08,247 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2020-10-15 02:34:08,458 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-15 02:34:08,876 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-15 02:34:09,759 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2020-10-15 02:34:10,046 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-15 02:34:10,337 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-15 02:34:10,961 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-15 02:34:11,705 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-15 02:34:12,505 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2020-10-15 02:34:12,811 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-15 02:34:13,127 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2020-10-15 02:34:13,835 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-15 02:34:14,020 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-15 02:34:14,326 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-15 02:34:14,568 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-15 02:34:14,790 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-15 02:34:14,994 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-15 02:34:15,437 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2020-10-15 02:34:15,738 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-15 02:34:15,955 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2020-10-15 02:34:16,475 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-15 02:34:17,729 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2020-10-15 02:34:17,937 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-15 02:34:18,452 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-15 02:34:18,865 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-15 02:34:19,808 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2020-10-15 02:34:20,026 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-15 02:34:20,462 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2020-10-15 02:34:21,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:34:21,950 INFO L93 Difference]: Finished difference Result 36167 states and 52500 transitions. [2020-10-15 02:34:21,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2020-10-15 02:34:21,951 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-15 02:34:21,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:34:22,041 INFO L225 Difference]: With dead ends: 36167 [2020-10-15 02:34:22,042 INFO L226 Difference]: Without dead ends: 26626 [2020-10-15 02:34:22,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7093 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=3259, Invalid=16201, Unknown=0, NotChecked=0, Total=19460 [2020-10-15 02:34:22,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26626 states. [2020-10-15 02:34:23,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26626 to 25348. [2020-10-15 02:34:23,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25348 states. [2020-10-15 02:34:23,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25348 states to 25348 states and 36793 transitions. [2020-10-15 02:34:23,739 INFO L78 Accepts]: Start accepts. Automaton has 25348 states and 36793 transitions. Word has length 115 [2020-10-15 02:34:23,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:34:23,739 INFO L479 AbstractCegarLoop]: Abstraction has 25348 states and 36793 transitions. [2020-10-15 02:34:23,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 02:34:23,740 INFO L276 IsEmpty]: Start isEmpty. Operand 25348 states and 36793 transitions. [2020-10-15 02:34:23,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:34:23,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:34:23,742 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] [2020-10-15 02:34:23,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:34:23,743 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:34:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:34:23,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1772070977, now seen corresponding path program 1 times [2020-10-15 02:34:23,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:34:23,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215618806] [2020-10-15 02:34:23,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:34:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:23,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:23,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:23,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:24,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:25,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:28,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:28,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:34:28,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:34:28,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:34:28,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:28,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:34:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 02:34:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 02:34:28,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:28,957 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:34:28,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:34:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:28,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:28,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:28,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:34:28,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:28,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:34:28,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:28,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:28,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:34:28,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:34:28,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:34:28,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:28,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:34:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:28,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:28,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:28,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:34:28,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:28,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:34:28,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:28,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:28,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:34:28,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:34:28,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:34:28,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:29,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:34:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:29,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:29,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:29,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:34:29,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:29,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:34:29,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:29,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:29,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:34:29,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:34:29,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:34:29,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:29,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:34:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:29,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:29,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:29,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:34:29,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:34:29,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:29,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:34:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:34:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:34:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:29,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:34:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:29,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:29,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:29,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:34:29,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:29,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:34:29,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:29,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:29,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:34:29,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:34:29,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:34:29,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:29,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:34:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:29,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:29,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:34:29,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:29,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:34:29,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:29,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:34:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:34:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:34:29,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:29,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:34:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:29,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:29,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:29,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:34:29,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:29,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:34:29,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:29,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:34:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:34:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:34:29,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:29,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:34:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:29,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:29,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:29,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:34:29,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:29,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:34:29,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:29,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:29,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:34:29,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:34:29,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:34:29,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:29,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-15 02:34:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:29,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:29,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:29,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:34:29,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:29,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:34:29,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:29,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:34:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:34:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:34:29,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:29,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-15 02:34:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:29,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:29,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:29,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:34:29,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:34:29,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:34:29,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:29,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:34:29,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:34:29,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:34:29,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:34:29,471 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 02:34:29,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215618806] [2020-10-15 02:34:29,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:34:29,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-15 02:34:29,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832749243] [2020-10-15 02:34:29,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 02:34:29,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:34:29,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 02:34:29,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:34:29,473 INFO L87 Difference]: Start difference. First operand 25348 states and 36793 transitions. Second operand 22 states. [2020-10-15 02:34:29,858 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 147 [2020-10-15 02:34:30,048 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-15 02:34:30,222 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:34:30,409 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:34:30,596 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:34:30,789 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:34:31,108 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-15 02:34:31,375 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-15 02:34:31,780 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-15 02:34:32,466 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-15 02:34:33,026 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-15 02:34:33,548 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-15 02:34:34,165 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:34:34,339 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:34:40,907 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:34:41,142 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:34:41,345 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:34:49,849 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-15 02:34:50,004 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-15 02:34:50,148 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-15 02:34:50,511 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-15 02:34:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:34:52,965 INFO L93 Difference]: Finished difference Result 54093 states and 84424 transitions. [2020-10-15 02:34:52,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2020-10-15 02:34:52,966 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-15 02:34:52,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:34:53,157 INFO L225 Difference]: With dead ends: 54093 [2020-10-15 02:34:53,157 INFO L226 Difference]: Without dead ends: 38005 [2020-10-15 02:34:53,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7766 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=3905, Invalid=16687, Unknown=0, NotChecked=0, Total=20592 [2020-10-15 02:34:53,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38005 states. [2020-10-15 02:34:55,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38005 to 31119. [2020-10-15 02:34:55,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31119 states. [2020-10-15 02:34:55,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31119 states to 31119 states and 45139 transitions. [2020-10-15 02:34:55,983 INFO L78 Accepts]: Start accepts. Automaton has 31119 states and 45139 transitions. Word has length 115 [2020-10-15 02:34:55,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:34:55,984 INFO L479 AbstractCegarLoop]: Abstraction has 31119 states and 45139 transitions. [2020-10-15 02:34:55,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 02:34:55,984 INFO L276 IsEmpty]: Start isEmpty. Operand 31119 states and 45139 transitions. [2020-10-15 02:34:55,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-15 02:34:55,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:34:55,987 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] [2020-10-15 02:34:55,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:34:55,987 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:34:55,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:34:55,987 INFO L82 PathProgramCache]: Analyzing trace with hash 794275868, now seen corresponding path program 1 times [2020-10-15 02:34:55,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:34:55,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158331347] [2020-10-15 02:34:55,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:34:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:34:56,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:56,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:56,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:34:59,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:34:59,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-15 02:34:59,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:34:59,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3888 [2020-10-15 02:34:59,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:34:59,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:34:59,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:34:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:34:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 02:34:59,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,063 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:35:00,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:00,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:00,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:00,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:35:00,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:35:00,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:00,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:35:00,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:35:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:35:00,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:35:00,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:35:00,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:35:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:00,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:00,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:00,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:00,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:00,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:35:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:00,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:35:00,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:35:00,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:35:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:00,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:35:00,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:35:00,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:35:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:00,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:00,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:00,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:00,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:35:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:00,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:35:00,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:00,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:00,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:00,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:35:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:00,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:35:00,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:00,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:35:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:00,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:00,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:00,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:35:00,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:35:00,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:00,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:35:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:00,325 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 02:35:00,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158331347] [2020-10-15 02:35:00,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:00,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:35:00,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135530387] [2020-10-15 02:35:00,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:35:00,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:00,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:35:00,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:35:00,326 INFO L87 Difference]: Start difference. First operand 31119 states and 45139 transitions. Second operand 12 states. [2020-10-15 02:35:00,497 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:35:06,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:06,404 INFO L93 Difference]: Finished difference Result 90327 states and 131525 transitions. [2020-10-15 02:35:06,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:35:06,405 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-15 02:35:06,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:06,595 INFO L225 Difference]: With dead ends: 90327 [2020-10-15 02:35:06,596 INFO L226 Difference]: Without dead ends: 59355 [2020-10-15 02:35:06,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-15 02:35:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59355 states. [2020-10-15 02:35:12,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59355 to 55752. [2020-10-15 02:35:12,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55752 states. [2020-10-15 02:35:12,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55752 states to 55752 states and 80350 transitions. [2020-10-15 02:35:12,156 INFO L78 Accepts]: Start accepts. Automaton has 55752 states and 80350 transitions. Word has length 116 [2020-10-15 02:35:12,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:12,156 INFO L479 AbstractCegarLoop]: Abstraction has 55752 states and 80350 transitions. [2020-10-15 02:35:12,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:35:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 55752 states and 80350 transitions. [2020-10-15 02:35:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-15 02:35:12,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:12,158 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] [2020-10-15 02:35:12,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:35:12,159 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:12,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:12,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1632283758, now seen corresponding path program 1 times [2020-10-15 02:35:12,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:12,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50592500] [2020-10-15 02:35:12,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:12,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:12,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:13,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:13,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-15 02:35:13,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:35:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1488 [2020-10-15 02:35:13,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:13,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:13,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:13,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 02:35:13,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:35:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:13,832 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:35:13,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:13,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:13,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:13,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:13,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:13,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:13,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:13,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:13,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:13,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:13,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:13,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:13,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:13,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:35:13,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:13,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:13,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:13,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:35:13,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:13,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:35:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:13,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:13,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:13,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:35:13,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:13,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:35:13,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:13,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:35:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:35:13,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:13,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:35:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:13,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:13,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:13,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:13,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:13,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:13,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:13,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:35:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:35:13,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:13,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:35:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:13,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:13,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:13,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:13,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:13,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:13,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:13,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:13,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:35:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:13,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:13,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:13,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:13,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:13,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:13,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:13,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:13,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:14,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:35:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:14,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:14,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:14,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:14,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:14,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:14,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:14,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:14,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:14,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:14,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:35:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:14,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:14,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:14,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:14,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:14,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:14,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:14,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:14,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:35:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:14,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:14,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:14,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:14,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:35:14,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:14,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:14,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:14,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:35:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:14,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:14,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:14,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:35:14,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:14,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:35:14,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:14,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:35:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:14,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:35:14,100 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 02:35:14,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50592500] [2020-10-15 02:35:14,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:14,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:35:14,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637883771] [2020-10-15 02:35:14,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:35:14,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:14,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:35:14,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:35:14,102 INFO L87 Difference]: Start difference. First operand 55752 states and 80350 transitions. Second operand 12 states. [2020-10-15 02:35:14,274 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 143