/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:17:42,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:17:42,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:17:42,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:17:42,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:17:42,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:17:42,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:17:42,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:17:42,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:17:42,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:17:42,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:17:42,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:17:42,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:17:42,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:17:42,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:17:42,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:17:42,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:17:42,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:17:42,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:17:42,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:17:42,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:17:42,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:17:42,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:17:42,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:17:42,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:17:42,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:17:42,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:17:42,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:17:42,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:17:42,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:17:42,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:17:42,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:17:42,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:17:42,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:17:42,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:17:42,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:17:42,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:17:42,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:17:42,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:17:42,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:17:42,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:17:42,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 03:17:42,168 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:17:42,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:17:42,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:17:42,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:17:42,170 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:17:42,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:17:42,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:17:42,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:17:42,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:17:42,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:17:42,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:17:42,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:17:42,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:17:42,172 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:17:42,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:17:42,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:17:42,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:17:42,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:17:42,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:17:42,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:17:42,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:17:42,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:17:42,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:17:42,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:17:42,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:17:42,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:17:42,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:17:42,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:17:42,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:17:42,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:17:42,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:17:42,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:17:42,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:17:42,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:17:42,520 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:17:42,521 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-15 03:17:42,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3faaf8e2a/10a9b2830ee245aa8defed817a23f965/FLAG752ec2a7f [2020-10-15 03:17:43,238 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:17:43,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-15 03:17:43,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3faaf8e2a/10a9b2830ee245aa8defed817a23f965/FLAG752ec2a7f [2020-10-15 03:17:43,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3faaf8e2a/10a9b2830ee245aa8defed817a23f965 [2020-10-15 03:17:43,473 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:17:43,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:17:43,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:17:43,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:17:43,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:17:43,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:43" (1/1) ... [2020-10-15 03:17:43,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@173f5186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:43, skipping insertion in model container [2020-10-15 03:17:43,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:43" (1/1) ... [2020-10-15 03:17:43,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:17:43,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:17:44,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:17:44,408 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:17:44,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:17:44,654 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:17:44,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44 WrapperNode [2020-10-15 03:17:44,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:17:44,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:17:44,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:17:44,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:17:44,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44" (1/1) ... [2020-10-15 03:17:44,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44" (1/1) ... [2020-10-15 03:17:44,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44" (1/1) ... [2020-10-15 03:17:44,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44" (1/1) ... [2020-10-15 03:17:44,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44" (1/1) ... [2020-10-15 03:17:44,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44" (1/1) ... [2020-10-15 03:17:44,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44" (1/1) ... [2020-10-15 03:17:44,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:17:44,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:17:44,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:17:44,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:17:44,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44" (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 03:17:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:17:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:17:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:17:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:17:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:17:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:17:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:17:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:17:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:17:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:17:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:17:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:17:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:17:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:17:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:17:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:17:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:17:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:17:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:17:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:17:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:17:46,821 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:17:46,822 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:17:46,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:46 BoogieIcfgContainer [2020-10-15 03:17:46,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:17:46,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:17:46,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:17:46,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:17:46,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:17:43" (1/3) ... [2020-10-15 03:17:46,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31189426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:46, skipping insertion in model container [2020-10-15 03:17:46,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:44" (2/3) ... [2020-10-15 03:17:46,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31189426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:46, skipping insertion in model container [2020-10-15 03:17:46,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:46" (3/3) ... [2020-10-15 03:17:46,845 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-15 03:17:46,856 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:17:46,869 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-15 03:17:46,885 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-15 03:17:46,920 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:17:46,920 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:17:46,921 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:17:46,921 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:17:46,921 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:17:46,921 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:17:46,921 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:17:46,922 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:17:46,961 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states. [2020-10-15 03:17:46,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:17:46,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:17:46,996 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] [2020-10-15 03:17:46,996 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:17:47,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:17:47,004 INFO L82 PathProgramCache]: Analyzing trace with hash 2049464648, now seen corresponding path program 1 times [2020-10-15 03:17:47,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:17:47,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165816681] [2020-10-15 03:17:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:17:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:17:47,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:47,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:48,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:48,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:48,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:49,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:49,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:51,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:51,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:52,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:17:52,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:17:52,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:17:52,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 03:17:52,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:17:52,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:17:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:17:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:17:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:17:52,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:17:53,520 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:17:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:17:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:17:53,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:53,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:17:53,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:17:53,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:17:53,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 03:17:53,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:17:53,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:17:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:17:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:17:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:17:53,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:17:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:17:53,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165816681] [2020-10-15 03:17:53,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:17:53,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:17:53,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127178510] [2020-10-15 03:17:53,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:17:53,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:17:53,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:17:53,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:17:53,663 INFO L87 Difference]: Start difference. First operand 363 states. Second operand 7 states. [2020-10-15 03:17:54,198 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-15 03:17:57,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:17:57,627 INFO L93 Difference]: Finished difference Result 834 states and 1377 transitions. [2020-10-15 03:17:57,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:17:57,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-15 03:17:57,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:17:57,658 INFO L225 Difference]: With dead ends: 834 [2020-10-15 03:17:57,658 INFO L226 Difference]: Without dead ends: 680 [2020-10-15 03:17:57,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:17:57,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-10-15 03:17:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 369. [2020-10-15 03:17:57,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-10-15 03:17:57,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 453 transitions. [2020-10-15 03:17:57,751 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 453 transitions. Word has length 63 [2020-10-15 03:17:57,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:17:57,752 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 453 transitions. [2020-10-15 03:17:57,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:17:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 453 transitions. [2020-10-15 03:17:57,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 03:17:57,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:17:57,755 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] [2020-10-15 03:17:57,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:17:57,756 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:17:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:17:57,757 INFO L82 PathProgramCache]: Analyzing trace with hash 804624401, now seen corresponding path program 1 times [2020-10-15 03:17:57,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:17:57,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433924347] [2020-10-15 03:17:57,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:17:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:17:57,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:57,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:57,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:57,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:58,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:58,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:17:58,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:02,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:02,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 03:18:02,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:18:02,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:18:02,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:02,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:02,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:18:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:18:02,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 03:18:02,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-15 03:18:03,264 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:18:03,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:03,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:03,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:03,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:03,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 03:18:03,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:03,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:18:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:18:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:03,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:03,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433924347] [2020-10-15 03:18:03,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:03,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:18:03,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236595141] [2020-10-15 03:18:03,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:18:03,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:03,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:18:03,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:18:03,381 INFO L87 Difference]: Start difference. First operand 369 states and 453 transitions. Second operand 6 states. [2020-10-15 03:18:03,801 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-15 03:18:05,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:18:05,653 INFO L93 Difference]: Finished difference Result 687 states and 862 transitions. [2020-10-15 03:18:05,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:18:05,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-15 03:18:05,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:18:05,657 INFO L225 Difference]: With dead ends: 687 [2020-10-15 03:18:05,657 INFO L226 Difference]: Without dead ends: 434 [2020-10-15 03:18:05,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:18:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-15 03:18:05,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 394. [2020-10-15 03:18:05,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-15 03:18:05,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 498 transitions. [2020-10-15 03:18:05,700 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 498 transitions. Word has length 63 [2020-10-15 03:18:05,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:18:05,701 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 498 transitions. [2020-10-15 03:18:05,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:18:05,701 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 498 transitions. [2020-10-15 03:18:05,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 03:18:05,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:18:05,706 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] [2020-10-15 03:18:05,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:18:05,710 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:18:05,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:18:05,710 INFO L82 PathProgramCache]: Analyzing trace with hash 711211391, now seen corresponding path program 1 times [2020-10-15 03:18:05,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:18:05,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383926782] [2020-10-15 03:18:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:18:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:05,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:05,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:05,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:06,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:06,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:06,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:07,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:10,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:10,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 03:18:10,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:18:10,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:18:10,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:10,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:10,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:18:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:18:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 03:18:10,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:11,111 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:18:11,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:11,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:11,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:11,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:11,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:11,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:18:11,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:11,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:18:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:18:11,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:11,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:11,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383926782] [2020-10-15 03:18:11,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:11,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:18:11,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217044181] [2020-10-15 03:18:11,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:18:11,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:11,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:18:11,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:18:11,175 INFO L87 Difference]: Start difference. First operand 394 states and 498 transitions. Second operand 6 states. [2020-10-15 03:18:11,489 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-15 03:18:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:18:12,894 INFO L93 Difference]: Finished difference Result 862 states and 1132 transitions. [2020-10-15 03:18:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:18:12,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-10-15 03:18:12,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:18:12,899 INFO L225 Difference]: With dead ends: 862 [2020-10-15 03:18:12,900 INFO L226 Difference]: Without dead ends: 546 [2020-10-15 03:18:12,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:18:12,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2020-10-15 03:18:12,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 516. [2020-10-15 03:18:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-10-15 03:18:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 690 transitions. [2020-10-15 03:18:12,946 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 690 transitions. Word has length 64 [2020-10-15 03:18:12,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:18:12,951 INFO L479 AbstractCegarLoop]: Abstraction has 516 states and 690 transitions. [2020-10-15 03:18:12,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:18:12,952 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 690 transitions. [2020-10-15 03:18:12,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:18:12,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:18:12,954 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] [2020-10-15 03:18:12,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:18:12,955 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:18:12,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:18:12,955 INFO L82 PathProgramCache]: Analyzing trace with hash 2059453365, now seen corresponding path program 1 times [2020-10-15 03:18:12,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:18:12,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072797839] [2020-10-15 03:18:12,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:18:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:13,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:13,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:13,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:13,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:14,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:15,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:15,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:15,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:16,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:17,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:17,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:18:17,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:18:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:18:17,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:17,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:18:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:18:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 03:18:18,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:18,428 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:18:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:18,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:18,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:18,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:18,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:18,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 03:18:18,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:18,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:18,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:18:18,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:18,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:18:18,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:18,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:18,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072797839] [2020-10-15 03:18:18,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:18,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:18:18,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19818562] [2020-10-15 03:18:18,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:18:18,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:18,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:18:18,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:18:18,517 INFO L87 Difference]: Start difference. First operand 516 states and 690 transitions. Second operand 9 states. [2020-10-15 03:18:18,947 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-15 03:18:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:18:20,583 INFO L93 Difference]: Finished difference Result 1188 states and 1649 transitions. [2020-10-15 03:18:20,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:18:20,583 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-15 03:18:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:18:20,592 INFO L225 Difference]: With dead ends: 1188 [2020-10-15 03:18:20,593 INFO L226 Difference]: Without dead ends: 861 [2020-10-15 03:18:20,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:18:20,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-10-15 03:18:20,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 516. [2020-10-15 03:18:20,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-10-15 03:18:20,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 688 transitions. [2020-10-15 03:18:20,644 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 688 transitions. Word has length 65 [2020-10-15 03:18:20,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:18:20,645 INFO L479 AbstractCegarLoop]: Abstraction has 516 states and 688 transitions. [2020-10-15 03:18:20,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:18:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 688 transitions. [2020-10-15 03:18:20,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:18:20,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:18:20,647 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] [2020-10-15 03:18:20,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:18:20,648 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:18:20,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:18:20,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1206860702, now seen corresponding path program 1 times [2020-10-15 03:18:20,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:18:20,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494435742] [2020-10-15 03:18:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:18:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:20,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:20,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:20,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:21,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:21,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:21,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:22,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:22,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:22,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:22,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:23,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:23,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:23,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:23,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:24,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:24,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:25,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:25,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:25,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:25,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:25,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:18:25,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:18:25,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-15 03:18:25,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:25,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:18:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:18:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:18:25,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:18:26,264 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:18:26,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:26,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:26,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:26,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:26,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:26,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 03:18:26,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:26,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:18:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:18:26,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 03:18:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:26,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494435742] [2020-10-15 03:18:26,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:26,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:18:26,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596119362] [2020-10-15 03:18:26,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:18:26,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:26,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:18:26,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:18:26,355 INFO L87 Difference]: Start difference. First operand 516 states and 688 transitions. Second operand 8 states. [2020-10-15 03:18:26,709 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-15 03:18:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:18:28,487 INFO L93 Difference]: Finished difference Result 1891 states and 2740 transitions. [2020-10-15 03:18:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:18:28,488 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-15 03:18:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:18:28,500 INFO L225 Difference]: With dead ends: 1891 [2020-10-15 03:18:28,500 INFO L226 Difference]: Without dead ends: 1590 [2020-10-15 03:18:28,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:18:28,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2020-10-15 03:18:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 518. [2020-10-15 03:18:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-10-15 03:18:28,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 690 transitions. [2020-10-15 03:18:28,562 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 690 transitions. Word has length 65 [2020-10-15 03:18:28,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:18:28,562 INFO L479 AbstractCegarLoop]: Abstraction has 518 states and 690 transitions. [2020-10-15 03:18:28,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:18:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 690 transitions. [2020-10-15 03:18:28,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 03:18:28,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:18:28,564 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] [2020-10-15 03:18:28,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:18:28,564 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:18:28,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:18:28,565 INFO L82 PathProgramCache]: Analyzing trace with hash 762904582, now seen corresponding path program 1 times [2020-10-15 03:18:28,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:18:28,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113967607] [2020-10-15 03:18:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:18:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:28,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:28,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:28,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:29,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:29,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:29,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:29,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:31,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:32,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:33,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:33,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 03:18:33,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:18:33,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:18:33,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:33,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 03:18:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:18:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 03:18:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:34,190 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:18:34,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:34,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:34,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:34,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:34,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:34,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 03:18:34,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:34,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:18:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:18:34,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:34,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:34,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113967607] [2020-10-15 03:18:34,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:34,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 03:18:34,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219890775] [2020-10-15 03:18:34,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 03:18:34,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:34,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 03:18:34,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:18:34,328 INFO L87 Difference]: Start difference. First operand 518 states and 690 transitions. Second operand 11 states. [2020-10-15 03:18:34,458 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2020-10-15 03:18:35,448 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 231 [2020-10-15 03:18:38,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:18:38,337 INFO L93 Difference]: Finished difference Result 2228 states and 3269 transitions. [2020-10-15 03:18:38,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 03:18:38,338 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2020-10-15 03:18:38,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:18:38,348 INFO L225 Difference]: With dead ends: 2228 [2020-10-15 03:18:38,348 INFO L226 Difference]: Without dead ends: 1982 [2020-10-15 03:18:38,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-15 03:18:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2020-10-15 03:18:38,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 516. [2020-10-15 03:18:38,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-10-15 03:18:38,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 687 transitions. [2020-10-15 03:18:38,410 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 687 transitions. Word has length 65 [2020-10-15 03:18:38,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:18:38,410 INFO L479 AbstractCegarLoop]: Abstraction has 516 states and 687 transitions. [2020-10-15 03:18:38,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 03:18:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 687 transitions. [2020-10-15 03:18:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 03:18:38,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:18:38,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:18:38,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:18:38,412 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:18:38,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:18:38,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1149246626, now seen corresponding path program 1 times [2020-10-15 03:18:38,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:18:38,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546620986] [2020-10-15 03:18:38,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:18:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:38,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:38,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:38,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:38,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:39,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:39,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:39,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:39,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:39,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:40,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:40,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:40,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:40,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:41,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:41,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:42,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:42,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:43,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:43,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 03:18:43,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 03:18:43,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:18:43,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:43,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:18:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:18:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 03:18:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:18:43,899 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:18:43,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:43,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:43,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:43,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:43,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:43,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:18:43,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:43,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:18:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:43,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:18:43,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:43,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546620986] [2020-10-15 03:18:43,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:43,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:18:43,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136283837] [2020-10-15 03:18:43,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:18:43,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:43,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:18:43,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:18:43,958 INFO L87 Difference]: Start difference. First operand 516 states and 687 transitions. Second operand 8 states. [2020-10-15 03:18:44,405 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-15 03:18:45,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:18:45,625 INFO L93 Difference]: Finished difference Result 849 states and 1177 transitions. [2020-10-15 03:18:45,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:18:45,626 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-15 03:18:45,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:18:45,633 INFO L225 Difference]: With dead ends: 849 [2020-10-15 03:18:45,634 INFO L226 Difference]: Without dead ends: 546 [2020-10-15 03:18:45,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:18:45,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2020-10-15 03:18:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 419. [2020-10-15 03:18:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-10-15 03:18:45,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 557 transitions. [2020-10-15 03:18:45,677 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 557 transitions. Word has length 66 [2020-10-15 03:18:45,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:18:45,678 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 557 transitions. [2020-10-15 03:18:45,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:18:45,678 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 557 transitions. [2020-10-15 03:18:45,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 03:18:45,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:18:45,679 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] [2020-10-15 03:18:45,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:18:45,679 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:18:45,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:18:45,680 INFO L82 PathProgramCache]: Analyzing trace with hash -214234484, now seen corresponding path program 1 times [2020-10-15 03:18:45,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:18:45,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807680235] [2020-10-15 03:18:45,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:18:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:45,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:45,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:45,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:45,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:45,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:46,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:47,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:47,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:50,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:50,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 03:18:50,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:18:50,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:18:50,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:50,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:18:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:18:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:18:50,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:18:51,220 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:18:51,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:51,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:51,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:51,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:51,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:51,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:18:51,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:51,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:18:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:18:51,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 03:18:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:51,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807680235] [2020-10-15 03:18:51,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:51,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:18:51,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549943195] [2020-10-15 03:18:51,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:18:51,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:51,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:18:51,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:18:51,288 INFO L87 Difference]: Start difference. First operand 419 states and 557 transitions. Second operand 9 states. [2020-10-15 03:18:52,028 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 230 [2020-10-15 03:18:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:18:53,122 INFO L93 Difference]: Finished difference Result 1047 states and 1504 transitions. [2020-10-15 03:18:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:18:53,123 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 03:18:53,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:18:53,127 INFO L225 Difference]: With dead ends: 1047 [2020-10-15 03:18:53,127 INFO L226 Difference]: Without dead ends: 819 [2020-10-15 03:18:53,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:18:53,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-10-15 03:18:53,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 397. [2020-10-15 03:18:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-10-15 03:18:53,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 527 transitions. [2020-10-15 03:18:53,176 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 527 transitions. Word has length 67 [2020-10-15 03:18:53,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:18:53,177 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 527 transitions. [2020-10-15 03:18:53,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:18:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 527 transitions. [2020-10-15 03:18:53,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 03:18:53,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:18:53,178 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] [2020-10-15 03:18:53,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:18:53,179 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:18:53,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:18:53,179 INFO L82 PathProgramCache]: Analyzing trace with hash -597298428, now seen corresponding path program 1 times [2020-10-15 03:18:53,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:18:53,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587149392] [2020-10-15 03:18:53,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:18:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:53,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:53,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:53,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:53,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:53,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:53,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:54,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:54,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:54,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:55,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:55,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:58,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:58,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-15 03:18:58,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:18:58,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:18:58,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:58,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:18:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:18:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:18:58,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:18:58,552 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:18:58,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:18:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:18:58,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:18:58,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:18:58,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:18:58,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:18:58,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:18:58,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:18:58,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:18:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:18:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:18:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:18:58,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:18:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:18:58,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587149392] [2020-10-15 03:18:58,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:18:58,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:18:58,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943875729] [2020-10-15 03:18:58,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:18:58,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:18:58,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:18:58,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:18:58,594 INFO L87 Difference]: Start difference. First operand 397 states and 527 transitions. Second operand 8 states. [2020-10-15 03:18:59,177 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-15 03:19:00,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:00,945 INFO L93 Difference]: Finished difference Result 2440 states and 3515 transitions. [2020-10-15 03:19:00,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 03:19:00,946 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-15 03:19:00,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:00,960 INFO L225 Difference]: With dead ends: 2440 [2020-10-15 03:19:00,960 INFO L226 Difference]: Without dead ends: 2196 [2020-10-15 03:19:00,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:19:00,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2020-10-15 03:19:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 439. [2020-10-15 03:19:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-10-15 03:19:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 574 transitions. [2020-10-15 03:19:01,053 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 574 transitions. Word has length 68 [2020-10-15 03:19:01,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:01,054 INFO L479 AbstractCegarLoop]: Abstraction has 439 states and 574 transitions. [2020-10-15 03:19:01,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:19:01,054 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 574 transitions. [2020-10-15 03:19:01,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 03:19:01,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:01,055 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] [2020-10-15 03:19:01,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:19:01,056 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:01,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:01,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1498053575, now seen corresponding path program 1 times [2020-10-15 03:19:01,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:01,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788432057] [2020-10-15 03:19:01,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:01,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:01,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:01,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:01,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:02,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:02,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:02,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:02,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:04,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:04,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:04,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:05,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:06,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:06,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-15 03:19:06,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:19:06,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 03:19:06,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:06,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:06,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:19:06,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:06,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:19:06,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-15 03:19:06,570 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:19:06,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:06,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:06,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:06,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:06,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:19:06,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:06,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:06,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:06,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:06,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788432057] [2020-10-15 03:19:06,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:06,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:19:06,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42357391] [2020-10-15 03:19:06,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:19:06,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:06,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:19:06,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:19:06,611 INFO L87 Difference]: Start difference. First operand 439 states and 574 transitions. Second operand 9 states. [2020-10-15 03:19:07,032 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-15 03:19:08,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:08,148 INFO L93 Difference]: Finished difference Result 756 states and 1044 transitions. [2020-10-15 03:19:08,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:19:08,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-15 03:19:08,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:08,151 INFO L225 Difference]: With dead ends: 756 [2020-10-15 03:19:08,151 INFO L226 Difference]: Without dead ends: 539 [2020-10-15 03:19:08,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:19:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-15 03:19:08,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 428. [2020-10-15 03:19:08,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-10-15 03:19:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 560 transitions. [2020-10-15 03:19:08,208 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 560 transitions. Word has length 68 [2020-10-15 03:19:08,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:08,208 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 560 transitions. [2020-10-15 03:19:08,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:19:08,209 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 560 transitions. [2020-10-15 03:19:08,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 03:19:08,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:08,210 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] [2020-10-15 03:19:08,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:19:08,210 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:08,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:08,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1113005414, now seen corresponding path program 1 times [2020-10-15 03:19:08,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:08,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804285787] [2020-10-15 03:19:08,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:08,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:08,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:08,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:08,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:08,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:09,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:09,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:10,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:10,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:10,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:11,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:11,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:11,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:11,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:12,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:12,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:12,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:13,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:13,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-15 03:19:13,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 03:19:13,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:19:13,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:13,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:19:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:19:13,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:13,632 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:19:13,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:13,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:13,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:13,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:13,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:13,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:19:13,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:13,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:13,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:13,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804285787] [2020-10-15 03:19:13,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:13,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:19:13,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084554494] [2020-10-15 03:19:13,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:19:13,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:13,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:19:13,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:19:13,666 INFO L87 Difference]: Start difference. First operand 428 states and 560 transitions. Second operand 8 states. [2020-10-15 03:19:14,016 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-15 03:19:14,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:14,940 INFO L93 Difference]: Finished difference Result 560 states and 743 transitions. [2020-10-15 03:19:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:19:14,941 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-15 03:19:14,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:14,943 INFO L225 Difference]: With dead ends: 560 [2020-10-15 03:19:14,943 INFO L226 Difference]: Without dead ends: 543 [2020-10-15 03:19:14,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:19:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-10-15 03:19:14,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 428. [2020-10-15 03:19:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-10-15 03:19:14,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 559 transitions. [2020-10-15 03:19:15,000 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 559 transitions. Word has length 68 [2020-10-15 03:19:15,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:15,000 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 559 transitions. [2020-10-15 03:19:15,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:19:15,000 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 559 transitions. [2020-10-15 03:19:15,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 03:19:15,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:15,001 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] [2020-10-15 03:19:15,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:19:15,001 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:15,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:15,002 INFO L82 PathProgramCache]: Analyzing trace with hash -493189498, now seen corresponding path program 1 times [2020-10-15 03:19:15,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:15,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635660503] [2020-10-15 03:19:15,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:15,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:15,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:15,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:15,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:16,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:19,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:19,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-15 03:19:19,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:19:19,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4914 [2020-10-15 03:19:19,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:19,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:19:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:19:19,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:20,335 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:19:20,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:20,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:20,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:20,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:20,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:20,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:19:20,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:20,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:20,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:20,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:20,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:20,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635660503] [2020-10-15 03:19:20,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:20,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:19:20,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518305123] [2020-10-15 03:19:20,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:19:20,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:20,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:19:20,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:19:20,373 INFO L87 Difference]: Start difference. First operand 428 states and 559 transitions. Second operand 8 states. [2020-10-15 03:19:20,716 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-15 03:19:21,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:21,829 INFO L93 Difference]: Finished difference Result 799 states and 1088 transitions. [2020-10-15 03:19:21,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 03:19:21,830 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-10-15 03:19:21,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:21,833 INFO L225 Difference]: With dead ends: 799 [2020-10-15 03:19:21,833 INFO L226 Difference]: Without dead ends: 543 [2020-10-15 03:19:21,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:19:21,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-10-15 03:19:21,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 428. [2020-10-15 03:19:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-10-15 03:19:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 555 transitions. [2020-10-15 03:19:21,895 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 555 transitions. Word has length 69 [2020-10-15 03:19:21,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:21,895 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 555 transitions. [2020-10-15 03:19:21,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:19:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 555 transitions. [2020-10-15 03:19:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-15 03:19:21,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:21,896 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] [2020-10-15 03:19:21,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:19:21,897 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:21,897 INFO L82 PathProgramCache]: Analyzing trace with hash -183436093, now seen corresponding path program 1 times [2020-10-15 03:19:21,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:21,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111423009] [2020-10-15 03:19:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:21,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:21,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:22,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:23,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:23,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:23,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:23,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:23,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:25,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:25,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:26,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:26,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:26,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:26,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:26,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:26,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:26,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 03:19:26,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:19:26,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:19:26,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:26,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:19:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 03:19:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:27,295 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:19:27,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:27,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:27,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:27,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:27,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:27,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:19:27,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:27,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:27,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:27,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111423009] [2020-10-15 03:19:27,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:27,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:19:27,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382433866] [2020-10-15 03:19:27,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:19:27,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:27,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:19:27,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:19:27,329 INFO L87 Difference]: Start difference. First operand 428 states and 555 transitions. Second operand 8 states. [2020-10-15 03:19:27,656 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-15 03:19:29,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:29,215 INFO L93 Difference]: Finished difference Result 1262 states and 1737 transitions. [2020-10-15 03:19:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 03:19:29,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-10-15 03:19:29,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:29,222 INFO L225 Difference]: With dead ends: 1262 [2020-10-15 03:19:29,223 INFO L226 Difference]: Without dead ends: 1248 [2020-10-15 03:19:29,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:19:29,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2020-10-15 03:19:29,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 436. [2020-10-15 03:19:29,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-10-15 03:19:29,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 564 transitions. [2020-10-15 03:19:29,284 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 564 transitions. Word has length 70 [2020-10-15 03:19:29,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:29,285 INFO L479 AbstractCegarLoop]: Abstraction has 436 states and 564 transitions. [2020-10-15 03:19:29,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:19:29,285 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 564 transitions. [2020-10-15 03:19:29,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-15 03:19:29,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:29,286 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] [2020-10-15 03:19:29,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:19:29,286 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:29,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:29,287 INFO L82 PathProgramCache]: Analyzing trace with hash 867363140, now seen corresponding path program 1 times [2020-10-15 03:19:29,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:29,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996018427] [2020-10-15 03:19:29,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:29,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:29,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:29,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:30,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:30,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 03:19:30,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 03:19:30,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1189 [2020-10-15 03:19:30,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:30,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:30,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:19:30,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:30,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 03:19:30,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:30,874 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:19:30,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:30,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:30,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:30,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:30,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:19:30,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:30,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:30,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:30,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:19:30,902 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 03:19:30,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996018427] [2020-10-15 03:19:30,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:30,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:19:30,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031772398] [2020-10-15 03:19:30,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:19:30,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:30,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:19:30,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:19:30,904 INFO L87 Difference]: Start difference. First operand 436 states and 564 transitions. Second operand 9 states. [2020-10-15 03:19:31,240 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-15 03:19:33,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:33,326 INFO L93 Difference]: Finished difference Result 1148 states and 1592 transitions. [2020-10-15 03:19:33,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:19:33,326 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-15 03:19:33,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:33,330 INFO L225 Difference]: With dead ends: 1148 [2020-10-15 03:19:33,330 INFO L226 Difference]: Without dead ends: 1142 [2020-10-15 03:19:33,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:19:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-15 03:19:33,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 430. [2020-10-15 03:19:33,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-15 03:19:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 557 transitions. [2020-10-15 03:19:33,387 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 557 transitions. Word has length 71 [2020-10-15 03:19:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:33,388 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 557 transitions. [2020-10-15 03:19:33,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:19:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 557 transitions. [2020-10-15 03:19:33,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-15 03:19:33,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:33,389 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] [2020-10-15 03:19:33,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:19:33,389 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:33,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:33,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1152479625, now seen corresponding path program 1 times [2020-10-15 03:19:33,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:33,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682863906] [2020-10-15 03:19:33,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:33,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:33,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:33,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:33,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:34,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:34,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:37,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:37,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 03:19:37,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:19:37,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4180 [2020-10-15 03:19:37,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:37,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:19:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:37,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:19:37,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:37,974 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:19:37,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:37,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:37,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:37,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:37,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:37,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:19:37,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:37,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:37,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:37,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:38,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682863906] [2020-10-15 03:19:38,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:38,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:19:38,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740745648] [2020-10-15 03:19:38,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:19:38,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:38,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:19:38,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:19:38,014 INFO L87 Difference]: Start difference. First operand 430 states and 557 transitions. Second operand 9 states. [2020-10-15 03:19:38,458 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-15 03:19:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:39,514 INFO L93 Difference]: Finished difference Result 670 states and 904 transitions. [2020-10-15 03:19:39,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:19:39,514 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-15 03:19:39,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:39,517 INFO L225 Difference]: With dead ends: 670 [2020-10-15 03:19:39,517 INFO L226 Difference]: Without dead ends: 640 [2020-10-15 03:19:39,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:19:39,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-10-15 03:19:39,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 400. [2020-10-15 03:19:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-10-15 03:19:39,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 522 transitions. [2020-10-15 03:19:39,599 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 522 transitions. Word has length 71 [2020-10-15 03:19:39,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:39,599 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 522 transitions. [2020-10-15 03:19:39,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:19:39,599 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 522 transitions. [2020-10-15 03:19:39,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 03:19:39,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:39,603 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] [2020-10-15 03:19:39,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:19:39,603 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:39,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:39,604 INFO L82 PathProgramCache]: Analyzing trace with hash -968476208, now seen corresponding path program 1 times [2020-10-15 03:19:39,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:39,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81605767] [2020-10-15 03:19:39,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:39,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:39,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:39,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:39,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:40,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:40,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:40,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:44,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:44,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 03:19:44,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:19:44,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:19:44,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:44,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:44,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:19:44,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:19:44,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 03:19:44,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:45,008 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:19:45,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:45,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:45,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:45,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:45,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:45,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:19:45,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:45,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:45,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:19:45,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:45,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:19:45,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:45,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81605767] [2020-10-15 03:19:45,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:45,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:19:45,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419456283] [2020-10-15 03:19:45,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:19:45,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:45,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:19:45,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:19:45,089 INFO L87 Difference]: Start difference. First operand 400 states and 522 transitions. Second operand 6 states. [2020-10-15 03:19:45,426 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-15 03:19:46,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:46,274 INFO L93 Difference]: Finished difference Result 838 states and 1170 transitions. [2020-10-15 03:19:46,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:19:46,275 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-10-15 03:19:46,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:46,278 INFO L225 Difference]: With dead ends: 838 [2020-10-15 03:19:46,278 INFO L226 Difference]: Without dead ends: 556 [2020-10-15 03:19:46,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:19:46,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-10-15 03:19:46,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 554. [2020-10-15 03:19:46,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-15 03:19:46,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 772 transitions. [2020-10-15 03:19:46,408 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 772 transitions. Word has length 93 [2020-10-15 03:19:46,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:46,409 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 772 transitions. [2020-10-15 03:19:46,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:19:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 772 transitions. [2020-10-15 03:19:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 03:19:46,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:46,411 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] [2020-10-15 03:19:46,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:19:46,411 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:46,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:46,412 INFO L82 PathProgramCache]: Analyzing trace with hash 669723860, now seen corresponding path program 1 times [2020-10-15 03:19:46,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:46,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601335127] [2020-10-15 03:19:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:46,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:46,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:46,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:46,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:46,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:46,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:47,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:47,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:47,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:47,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:51,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:51,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 03:19:51,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:19:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:19:51,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:51,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:19:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:19:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 03:19:51,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:51,751 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:19:51,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:51,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:51,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:51,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:51,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:51,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:19:51,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:51,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:51,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:51,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:51,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601335127] [2020-10-15 03:19:51,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:51,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:19:51,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857451349] [2020-10-15 03:19:51,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:19:51,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:51,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:19:51,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:19:51,780 INFO L87 Difference]: Start difference. First operand 554 states and 772 transitions. Second operand 8 states. [2020-10-15 03:19:52,090 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-15 03:19:52,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:52,771 INFO L93 Difference]: Finished difference Result 990 states and 1415 transitions. [2020-10-15 03:19:52,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:19:52,772 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-10-15 03:19:52,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:52,774 INFO L225 Difference]: With dead ends: 990 [2020-10-15 03:19:52,774 INFO L226 Difference]: Without dead ends: 554 [2020-10-15 03:19:52,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:19:52,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-10-15 03:19:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2020-10-15 03:19:52,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-15 03:19:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 770 transitions. [2020-10-15 03:19:52,848 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 770 transitions. Word has length 94 [2020-10-15 03:19:52,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:52,850 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 770 transitions. [2020-10-15 03:19:52,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:19:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 770 transitions. [2020-10-15 03:19:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 03:19:52,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:52,852 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] [2020-10-15 03:19:52,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:19:52,853 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:52,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:52,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1393206929, now seen corresponding path program 1 times [2020-10-15 03:19:52,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:52,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254880540] [2020-10-15 03:19:52,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:52,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:52,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:53,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:57,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:57,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 03:19:57,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:19:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:19:57,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:57,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:19:57,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 03:19:57,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-15 03:19:57,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:58,176 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:19:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:19:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:58,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:58,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:19:58,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:19:58,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:19:58,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 03:19:58,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:19:58,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:19:58,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:19:58,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:19:58,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:19:58,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:19:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:19:58,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254880540] [2020-10-15 03:19:58,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:19:58,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:19:58,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659485696] [2020-10-15 03:19:58,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:19:58,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:19:58,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:19:58,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:19:58,205 INFO L87 Difference]: Start difference. First operand 554 states and 770 transitions. Second operand 7 states. [2020-10-15 03:19:58,514 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-15 03:19:59,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:19:59,596 INFO L93 Difference]: Finished difference Result 3770 states and 5610 transitions. [2020-10-15 03:19:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:19:59,596 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2020-10-15 03:19:59,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:19:59,607 INFO L225 Difference]: With dead ends: 3770 [2020-10-15 03:19:59,607 INFO L226 Difference]: Without dead ends: 3368 [2020-10-15 03:19:59,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:19:59,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2020-10-15 03:19:59,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 954. [2020-10-15 03:19:59,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 954 states. [2020-10-15 03:19:59,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1358 transitions. [2020-10-15 03:19:59,813 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1358 transitions. Word has length 96 [2020-10-15 03:19:59,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:19:59,813 INFO L479 AbstractCegarLoop]: Abstraction has 954 states and 1358 transitions. [2020-10-15 03:19:59,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:19:59,813 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1358 transitions. [2020-10-15 03:19:59,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 03:19:59,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:19:59,815 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] [2020-10-15 03:19:59,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 03:19:59,816 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:19:59,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:19:59,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1001178488, now seen corresponding path program 1 times [2020-10-15 03:19:59,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:19:59,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255365428] [2020-10-15 03:19:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:19:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:19:59,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:19:59,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:00,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:01,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:01,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:02,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:04,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:04,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:04,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:04,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:04,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:04,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 03:20:04,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-15 03:20:04,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:20:04,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:04,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:04,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:04,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:20:04,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 03:20:04,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:05,130 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:20:05,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:05,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:05,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:05,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:05,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:05,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:20:05,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:05,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:05,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:05,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255365428] [2020-10-15 03:20:05,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:05,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:20:05,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980441147] [2020-10-15 03:20:05,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:05,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:05,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:05,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:05,158 INFO L87 Difference]: Start difference. First operand 954 states and 1358 transitions. Second operand 8 states. [2020-10-15 03:20:05,461 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-15 03:20:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:06,561 INFO L93 Difference]: Finished difference Result 3154 states and 4586 transitions. [2020-10-15 03:20:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 03:20:06,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-10-15 03:20:06,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:06,569 INFO L225 Difference]: With dead ends: 3154 [2020-10-15 03:20:06,569 INFO L226 Difference]: Without dead ends: 2352 [2020-10-15 03:20:06,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:20:06,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2020-10-15 03:20:06,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 1210. [2020-10-15 03:20:06,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1210 states. [2020-10-15 03:20:06,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1734 transitions. [2020-10-15 03:20:06,818 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1734 transitions. Word has length 98 [2020-10-15 03:20:06,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:06,819 INFO L479 AbstractCegarLoop]: Abstraction has 1210 states and 1734 transitions. [2020-10-15 03:20:06,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:06,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1734 transitions. [2020-10-15 03:20:06,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 03:20:06,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:06,821 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] [2020-10-15 03:20:06,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 03:20:06,822 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:06,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:06,822 INFO L82 PathProgramCache]: Analyzing trace with hash 724207633, now seen corresponding path program 1 times [2020-10-15 03:20:06,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:06,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788647137] [2020-10-15 03:20:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:06,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:06,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:06,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:06,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:07,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:11,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:11,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 03:20:11,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:20:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 03:20:11,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:11,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:20:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 03:20:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-15 03:20:11,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:12,163 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:20:12,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:12,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:12,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:12,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:12,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:12,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:20:12,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:12,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:12,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:12,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788647137] [2020-10-15 03:20:12,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:12,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:20:12,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554221673] [2020-10-15 03:20:12,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:20:12,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:12,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:20:12,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:20:12,200 INFO L87 Difference]: Start difference. First operand 1210 states and 1734 transitions. Second operand 7 states. [2020-10-15 03:20:12,564 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-15 03:20:13,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:13,948 INFO L93 Difference]: Finished difference Result 5450 states and 8014 transitions. [2020-10-15 03:20:13,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:20:13,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-10-15 03:20:13,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:13,965 INFO L225 Difference]: With dead ends: 5450 [2020-10-15 03:20:13,966 INFO L226 Difference]: Without dead ends: 4392 [2020-10-15 03:20:13,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:20:13,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4392 states. [2020-10-15 03:20:14,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4392 to 1210. [2020-10-15 03:20:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1210 states. [2020-10-15 03:20:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1718 transitions. [2020-10-15 03:20:14,236 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1718 transitions. Word has length 98 [2020-10-15 03:20:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:14,237 INFO L479 AbstractCegarLoop]: Abstraction has 1210 states and 1718 transitions. [2020-10-15 03:20:14,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:20:14,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1718 transitions. [2020-10-15 03:20:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 03:20:14,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:14,240 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] [2020-10-15 03:20:14,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 03:20:14,240 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:14,240 INFO L82 PathProgramCache]: Analyzing trace with hash -15532688, now seen corresponding path program 1 times [2020-10-15 03:20:14,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:14,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531775633] [2020-10-15 03:20:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:14,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:14,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:15,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:15,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:15,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:19,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:19,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 03:20:19,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:20:19,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 03:20:19,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:19,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:19,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:20:19,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 03:20:19,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 03:20:19,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:19,596 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:20:19,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:19,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:19,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:19,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:19,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:19,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:20:19,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:19,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:19,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:19,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531775633] [2020-10-15 03:20:19,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:19,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:20:19,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318250568] [2020-10-15 03:20:19,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:20:19,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:19,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:20:19,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:20:19,634 INFO L87 Difference]: Start difference. First operand 1210 states and 1718 transitions. Second operand 6 states. [2020-10-15 03:20:19,914 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-15 03:20:21,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:21,255 INFO L93 Difference]: Finished difference Result 4192 states and 6049 transitions. [2020-10-15 03:20:21,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:20:21,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2020-10-15 03:20:21,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:21,264 INFO L225 Difference]: With dead ends: 4192 [2020-10-15 03:20:21,264 INFO L226 Difference]: Without dead ends: 3134 [2020-10-15 03:20:21,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:21,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2020-10-15 03:20:21,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 3130. [2020-10-15 03:20:21,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3130 states. [2020-10-15 03:20:21,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4398 transitions. [2020-10-15 03:20:21,875 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4398 transitions. Word has length 98 [2020-10-15 03:20:21,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:21,875 INFO L479 AbstractCegarLoop]: Abstraction has 3130 states and 4398 transitions. [2020-10-15 03:20:21,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:20:21,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4398 transitions. [2020-10-15 03:20:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 03:20:21,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:21,878 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] [2020-10-15 03:20:21,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 03:20:21,879 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:21,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:21,879 INFO L82 PathProgramCache]: Analyzing trace with hash -922977702, now seen corresponding path program 1 times [2020-10-15 03:20:21,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:21,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395587951] [2020-10-15 03:20:21,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:21,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:21,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:21,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:22,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:24,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:25,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:26,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:26,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:26,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:26,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 03:20:26,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:20:26,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:20:26,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:26,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:20:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 03:20:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 03:20:26,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:27,208 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:20:27,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:27,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:27,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:27,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:27,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:27,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:20:27,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:27,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:27,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:27,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:27,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:27,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:27,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:27,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395587951] [2020-10-15 03:20:27,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:27,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:20:27,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008655797] [2020-10-15 03:20:27,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:20:27,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:27,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:20:27,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:20:27,236 INFO L87 Difference]: Start difference. First operand 3130 states and 4398 transitions. Second operand 6 states. [2020-10-15 03:20:27,558 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-15 03:20:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:29,231 INFO L93 Difference]: Finished difference Result 8928 states and 12721 transitions. [2020-10-15 03:20:29,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:20:29,233 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2020-10-15 03:20:29,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:29,244 INFO L225 Difference]: With dead ends: 8928 [2020-10-15 03:20:29,244 INFO L226 Difference]: Without dead ends: 5950 [2020-10-15 03:20:29,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:20:29,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2020-10-15 03:20:30,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 5946. [2020-10-15 03:20:30,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5946 states. [2020-10-15 03:20:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 8390 transitions. [2020-10-15 03:20:30,522 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 8390 transitions. Word has length 98 [2020-10-15 03:20:30,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:30,522 INFO L479 AbstractCegarLoop]: Abstraction has 5946 states and 8390 transitions. [2020-10-15 03:20:30,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:20:30,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 8390 transitions. [2020-10-15 03:20:30,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 03:20:30,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:30,526 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] [2020-10-15 03:20:30,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 03:20:30,526 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:30,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:30,527 INFO L82 PathProgramCache]: Analyzing trace with hash -2042397292, now seen corresponding path program 1 times [2020-10-15 03:20:30,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:30,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294004384] [2020-10-15 03:20:30,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:30,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:30,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:32,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:32,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:32,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:32,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:35,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:35,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 03:20:35,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:20:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 03:20:35,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:35,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:20:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 03:20:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-15 03:20:35,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:35,834 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:20:35,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:35,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:35,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:35,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:35,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:35,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:20:35,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:35,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:20:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:20:35,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:35,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294004384] [2020-10-15 03:20:35,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:35,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:20:35,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342545884] [2020-10-15 03:20:35,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:20:35,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:35,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:20:35,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:20:35,862 INFO L87 Difference]: Start difference. First operand 5946 states and 8390 transitions. Second operand 6 states. [2020-10-15 03:20:36,158 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-15 03:20:38,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:38,327 INFO L93 Difference]: Finished difference Result 14236 states and 20169 transitions. [2020-10-15 03:20:38,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:20:38,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2020-10-15 03:20:38,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:38,345 INFO L225 Difference]: With dead ends: 14236 [2020-10-15 03:20:38,345 INFO L226 Difference]: Without dead ends: 8442 [2020-10-15 03:20:38,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:20:38,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2020-10-15 03:20:40,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7946. [2020-10-15 03:20:40,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7946 states. [2020-10-15 03:20:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7946 states to 7946 states and 11282 transitions. [2020-10-15 03:20:40,078 INFO L78 Accepts]: Start accepts. Automaton has 7946 states and 11282 transitions. Word has length 98 [2020-10-15 03:20:40,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:40,078 INFO L479 AbstractCegarLoop]: Abstraction has 7946 states and 11282 transitions. [2020-10-15 03:20:40,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:20:40,078 INFO L276 IsEmpty]: Start isEmpty. Operand 7946 states and 11282 transitions. [2020-10-15 03:20:40,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 03:20:40,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:40,082 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] [2020-10-15 03:20:40,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 03:20:40,082 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:40,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:40,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1909823410, now seen corresponding path program 1 times [2020-10-15 03:20:40,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:40,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866935763] [2020-10-15 03:20:40,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:40,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:40,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:41,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:42,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:42,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:44,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:44,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:44,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:45,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:45,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 03:20:45,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:20:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:20:45,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:45,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:20:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:20:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-15 03:20:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:45,576 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:20:45,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:20:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:45,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:45,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:20:45,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:20:45,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:20:45,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:20:45,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:20:45,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:20:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:20:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:20:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:20:45,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:20:45,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:20:45,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866935763] [2020-10-15 03:20:45,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:20:45,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:20:45,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458078839] [2020-10-15 03:20:45,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:20:45,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:20:45,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:20:45,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:20:45,645 INFO L87 Difference]: Start difference. First operand 7946 states and 11282 transitions. Second operand 8 states. [2020-10-15 03:20:45,939 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-15 03:20:52,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:20:52,906 INFO L93 Difference]: Finished difference Result 38364 states and 54484 transitions. [2020-10-15 03:20:52,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:20:52,906 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-10-15 03:20:52,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:20:52,947 INFO L225 Difference]: With dead ends: 38364 [2020-10-15 03:20:52,947 INFO L226 Difference]: Without dead ends: 30570 [2020-10-15 03:20:52,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:20:52,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30570 states. [2020-10-15 03:20:55,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30570 to 13766. [2020-10-15 03:20:55,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13766 states. [2020-10-15 03:20:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13766 states to 13766 states and 19566 transitions. [2020-10-15 03:20:55,988 INFO L78 Accepts]: Start accepts. Automaton has 13766 states and 19566 transitions. Word has length 98 [2020-10-15 03:20:55,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:20:55,988 INFO L479 AbstractCegarLoop]: Abstraction has 13766 states and 19566 transitions. [2020-10-15 03:20:55,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:20:55,988 INFO L276 IsEmpty]: Start isEmpty. Operand 13766 states and 19566 transitions. [2020-10-15 03:20:55,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 03:20:55,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:20:55,991 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] [2020-10-15 03:20:55,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 03:20:55,991 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:20:55,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:20:55,992 INFO L82 PathProgramCache]: Analyzing trace with hash 916432594, now seen corresponding path program 1 times [2020-10-15 03:20:55,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:20:55,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275876888] [2020-10-15 03:20:55,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:20:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:20:56,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:56,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:56,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:56,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:56,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:20:57,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:01,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:01,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 03:21:01,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:21:01,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:21:01,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:01,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:21:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:21:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 03:21:01,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:01,298 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:21:01,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:01,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:01,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:01,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:01,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:01,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:21:01,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:01,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:21:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:21:01,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:01,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:01,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275876888] [2020-10-15 03:21:01,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:01,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:21:01,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317948982] [2020-10-15 03:21:01,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:21:01,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:01,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:21:01,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:21:01,339 INFO L87 Difference]: Start difference. First operand 13766 states and 19566 transitions. Second operand 6 states. [2020-10-15 03:21:01,635 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-15 03:21:07,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:07,691 INFO L93 Difference]: Finished difference Result 40572 states and 57936 transitions. [2020-10-15 03:21:07,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:21:07,692 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2020-10-15 03:21:07,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:07,723 INFO L225 Difference]: With dead ends: 40572 [2020-10-15 03:21:07,724 INFO L226 Difference]: Without dead ends: 26948 [2020-10-15 03:21:07,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:21:07,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26948 states. [2020-10-15 03:21:13,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26948 to 26946. [2020-10-15 03:21:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26946 states. [2020-10-15 03:21:13,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26946 states to 26946 states and 38317 transitions. [2020-10-15 03:21:13,374 INFO L78 Accepts]: Start accepts. Automaton has 26946 states and 38317 transitions. Word has length 99 [2020-10-15 03:21:13,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:13,374 INFO L479 AbstractCegarLoop]: Abstraction has 26946 states and 38317 transitions. [2020-10-15 03:21:13,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:21:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 26946 states and 38317 transitions. [2020-10-15 03:21:13,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 03:21:13,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:13,379 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] [2020-10-15 03:21:13,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 03:21:13,379 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:21:13,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:13,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1545626014, now seen corresponding path program 1 times [2020-10-15 03:21:13,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:13,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112641353] [2020-10-15 03:21:13,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:13,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:13,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:13,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:13,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:13,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:13,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:14,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:16,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:18,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:18,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 03:21:18,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:21:18,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:21:18,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:18,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:18,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:21:18,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:18,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 03:21:18,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:18,719 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-15 03:21:18,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:21:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:18,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:18,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:18,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:21:18,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:21:18,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 03:21:18,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:18,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:21:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:21:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:21:18,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:21:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:21:18,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112641353] [2020-10-15 03:21:18,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:21:18,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:21:18,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934965888] [2020-10-15 03:21:18,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:21:18,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:21:18,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:21:18,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:21:18,753 INFO L87 Difference]: Start difference. First operand 26946 states and 38317 transitions. Second operand 8 states. [2020-10-15 03:21:19,072 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-15 03:21:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:21:28,145 INFO L93 Difference]: Finished difference Result 66994 states and 95239 transitions. [2020-10-15 03:21:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:21:28,146 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2020-10-15 03:21:28,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:21:28,183 INFO L225 Difference]: With dead ends: 66994 [2020-10-15 03:21:28,183 INFO L226 Difference]: Without dead ends: 40260 [2020-10-15 03:21:28,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:21:28,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40260 states. [2020-10-15 03:21:34,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40260 to 26946. [2020-10-15 03:21:34,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26946 states. [2020-10-15 03:21:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26946 states to 26946 states and 38313 transitions. [2020-10-15 03:21:34,081 INFO L78 Accepts]: Start accepts. Automaton has 26946 states and 38313 transitions. Word has length 100 [2020-10-15 03:21:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:21:34,082 INFO L479 AbstractCegarLoop]: Abstraction has 26946 states and 38313 transitions. [2020-10-15 03:21:34,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:21:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 26946 states and 38313 transitions. [2020-10-15 03:21:34,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-15 03:21:34,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:21:34,085 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] [2020-10-15 03:21:34,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-15 03:21:34,086 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:21:34,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:21:34,086 INFO L82 PathProgramCache]: Analyzing trace with hash -351219241, now seen corresponding path program 1 times [2020-10-15 03:21:34,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:21:34,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340425921] [2020-10-15 03:21:34,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:21:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:21:34,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:34,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:34,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:34,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:35,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:35,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:21:39,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:21:39,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 03:21:39,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:21:39,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:21:39,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:21:39,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:21:39,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 03:21:39,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:21:39,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 03:21:39,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0