/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:53:27,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:53:27,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:53:27,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:53:27,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:53:27,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:53:27,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:53:27,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:53:27,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:53:27,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:53:27,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:53:27,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:53:27,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:53:27,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:53:27,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:53:27,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:53:27,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:53:27,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:53:27,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:53:27,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:53:27,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:53:27,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:53:27,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:53:27,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:53:27,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:53:27,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:53:27,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:53:27,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:53:27,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:53:27,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:53:27,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:53:27,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:53:27,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:53:27,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:53:27,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:53:27,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:53:27,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:53:27,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:53:27,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:53:27,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:53:27,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:53:27,123 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 [2020-10-14 08:53:27,163 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:53:27,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:53:27,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:53:27,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:53:27,166 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:53:27,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:53:27,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:53:27,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:53:27,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:53:27,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:53:27,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:53:27,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:53:27,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:53:27,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:53:27,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:53:27,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:53:27,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:53:27,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:53:27,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:53:27,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:53:27,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:53:27,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:53:27,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:53:27,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:53:27,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:53:27,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:53:27,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:53:27,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:53:27,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:53:27,172 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:53:27,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:53:27,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:53:27,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:53:27,530 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:53:27,531 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:53:27,531 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-14 08:53:27,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8938cb1a2/703528265d6d4dfbbf8f8ba6b6f5e8fe/FLAG5d9eed111 [2020-10-14 08:53:28,355 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:53:28,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-14 08:53:28,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8938cb1a2/703528265d6d4dfbbf8f8ba6b6f5e8fe/FLAG5d9eed111 [2020-10-14 08:53:28,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8938cb1a2/703528265d6d4dfbbf8f8ba6b6f5e8fe [2020-10-14 08:53:28,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:53:28,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:53:28,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:53:28,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:53:28,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:53:28,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:53:28" (1/1) ... [2020-10-14 08:53:28,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c853998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:28, skipping insertion in model container [2020-10-14 08:53:28,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:53:28" (1/1) ... [2020-10-14 08:53:28,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:53:28,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:53:30,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:53:30,729 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:53:31,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:53:31,781 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:53:31,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31 WrapperNode [2020-10-14 08:53:31,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:53:31,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:53:31,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:53:31,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:53:31,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31" (1/1) ... [2020-10-14 08:53:31,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31" (1/1) ... [2020-10-14 08:53:31,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31" (1/1) ... [2020-10-14 08:53:31,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31" (1/1) ... [2020-10-14 08:53:32,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31" (1/1) ... [2020-10-14 08:53:32,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31" (1/1) ... [2020-10-14 08:53:32,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31" (1/1) ... [2020-10-14 08:53:32,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:53:32,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:53:32,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:53:32,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:53:32,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31" (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 [2020-10-14 08:53:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:53:32,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:53:32,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:53:32,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:53:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:53:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:53:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:53:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:53:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:53:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:53:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:53:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:53:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:53:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:53:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:53:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:53:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:53:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 08:53:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-14 08:53:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:53:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:53:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:53:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:53:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:53:38,230 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:53:38,231 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:53:38,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:53:38 BoogieIcfgContainer [2020-10-14 08:53:38,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:53:38,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:53:38,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:53:38,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:53:38,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:53:28" (1/3) ... [2020-10-14 08:53:38,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efb1e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:53:38, skipping insertion in model container [2020-10-14 08:53:38,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:53:31" (2/3) ... [2020-10-14 08:53:38,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efb1e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:53:38, skipping insertion in model container [2020-10-14 08:53:38,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:53:38" (3/3) ... [2020-10-14 08:53:38,261 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-14 08:53:38,274 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:53:38,289 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-14 08:53:38,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-14 08:53:38,352 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:53:38,352 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:53:38,353 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:53:38,353 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:53:38,353 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:53:38,353 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:53:38,353 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:53:38,353 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:53:38,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states. [2020-10-14 08:53:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 08:53:38,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:53:38,457 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] [2020-10-14 08:53:38,458 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:53:38,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:53:38,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1279682657, now seen corresponding path program 1 times [2020-10-14 08:53:38,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:53:38,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74939919] [2020-10-14 08:53:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:53:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:39,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:39,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:39,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:40,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:40,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:41,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:43,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:43,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:43,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 08:53:43,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:53:43,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:53:43,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:43,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:43,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:53:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:53:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:53:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:53:45,380 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:53:45,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:53:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:53:45,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:53:45,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:53:45,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:53:45,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:53:45,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 08:53:45,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:53:45,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:53:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:53:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:53:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:53:45,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:53:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:53:45,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74939919] [2020-10-14 08:53:45,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:53:45,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:53:45,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639827887] [2020-10-14 08:53:45,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:53:45,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:53:45,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:53:45,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:53:45,656 INFO L87 Difference]: Start difference. First operand 2353 states. Second operand 6 states. [2020-10-14 08:53:46,788 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 475 [2020-10-14 08:54:04,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:54:04,778 INFO L93 Difference]: Finished difference Result 3412 states and 5971 transitions. [2020-10-14 08:54:04,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:54:04,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-14 08:54:04,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:54:04,832 INFO L225 Difference]: With dead ends: 3412 [2020-10-14 08:54:04,832 INFO L226 Difference]: Without dead ends: 2309 [2020-10-14 08:54:04,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:54:04,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2020-10-14 08:54:05,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2231. [2020-10-14 08:54:05,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-10-14 08:54:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2916 transitions. [2020-10-14 08:54:05,049 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2916 transitions. Word has length 90 [2020-10-14 08:54:05,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:54:05,051 INFO L479 AbstractCegarLoop]: Abstraction has 2231 states and 2916 transitions. [2020-10-14 08:54:05,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:54:05,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2916 transitions. [2020-10-14 08:54:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 08:54:05,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:54:05,063 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] [2020-10-14 08:54:05,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:54:05,065 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:54:05,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:54:05,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1422301979, now seen corresponding path program 1 times [2020-10-14 08:54:05,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:54:05,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569838956] [2020-10-14 08:54:05,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:54:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:05,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:05,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:05,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:05,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:05,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:07,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:07,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:08,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:10,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:10,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 08:54:10,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:54:10,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:54:10,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:10,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:10,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:54:10,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:54:10,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:54:10,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 08:54:11,592 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:54:11,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:54:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:11,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:11,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:11,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:54:11,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:54:11,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 08:54:11,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:11,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:11,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:54:11,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:54:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:54:11,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:54:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:54:11,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569838956] [2020-10-14 08:54:11,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:54:11,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:54:11,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277557208] [2020-10-14 08:54:11,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:54:11,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:54:11,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:54:11,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:54:11,798 INFO L87 Difference]: Start difference. First operand 2231 states and 2916 transitions. Second operand 6 states. [2020-10-14 08:54:12,820 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 475 [2020-10-14 08:54:21,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:54:21,311 INFO L93 Difference]: Finished difference Result 2879 states and 3761 transitions. [2020-10-14 08:54:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:54:21,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-14 08:54:21,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:54:21,326 INFO L225 Difference]: With dead ends: 2879 [2020-10-14 08:54:21,326 INFO L226 Difference]: Without dead ends: 1803 [2020-10-14 08:54:21,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:54:21,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2020-10-14 08:54:21,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1723. [2020-10-14 08:54:21,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1723 states. [2020-10-14 08:54:21,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2286 transitions. [2020-10-14 08:54:21,402 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2286 transitions. Word has length 90 [2020-10-14 08:54:21,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:54:21,405 INFO L479 AbstractCegarLoop]: Abstraction has 1723 states and 2286 transitions. [2020-10-14 08:54:21,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:54:21,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2286 transitions. [2020-10-14 08:54:21,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 08:54:21,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:54:21,411 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] [2020-10-14 08:54:21,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:54:21,412 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:54:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:54:21,412 INFO L82 PathProgramCache]: Analyzing trace with hash 71484187, now seen corresponding path program 1 times [2020-10-14 08:54:21,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:54:21,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273561285] [2020-10-14 08:54:21,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:54:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:21,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:21,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:21,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:22,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:22,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:22,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:26,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:26,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 08:54:26,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:54:26,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 08:54:26,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:26,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:26,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:54:26,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:54:26,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:54:26,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:54:27,663 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:54:27,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:54:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:27,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:27,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:27,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:54:27,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:54:27,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 08:54:27,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:27,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:27,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:54:27,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:54:27,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:54:27,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:54:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:54:27,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273561285] [2020-10-14 08:54:27,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:54:27,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:54:27,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955141640] [2020-10-14 08:54:27,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:54:27,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:54:27,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:54:27,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:54:27,801 INFO L87 Difference]: Start difference. First operand 1723 states and 2286 transitions. Second operand 6 states. [2020-10-14 08:54:28,804 WARN L193 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 475 [2020-10-14 08:54:34,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:54:34,682 INFO L93 Difference]: Finished difference Result 2874 states and 3892 transitions. [2020-10-14 08:54:34,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:54:34,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-14 08:54:34,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:54:34,695 INFO L225 Difference]: With dead ends: 2874 [2020-10-14 08:54:34,696 INFO L226 Difference]: Without dead ends: 1991 [2020-10-14 08:54:34,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:54:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-10-14 08:54:34,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1911. [2020-10-14 08:54:34,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1911 states. [2020-10-14 08:54:34,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2629 transitions. [2020-10-14 08:54:34,822 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2629 transitions. Word has length 90 [2020-10-14 08:54:34,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:54:34,822 INFO L479 AbstractCegarLoop]: Abstraction has 1911 states and 2629 transitions. [2020-10-14 08:54:34,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:54:34,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2629 transitions. [2020-10-14 08:54:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 08:54:34,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:54:34,827 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] [2020-10-14 08:54:34,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:54:34,827 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:54:34,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:54:34,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1910717333, now seen corresponding path program 1 times [2020-10-14 08:54:34,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:54:34,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63348367] [2020-10-14 08:54:34,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:54:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:34,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:34,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:35,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:35,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:35,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:35,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:36,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:37,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:38,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:39,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:39,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 08:54:39,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 08:54:39,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:54:39,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:39,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:54:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:54:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:54:39,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:54:41,483 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:54:41,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:54:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:41,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:41,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:41,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:54:41,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:54:41,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 08:54:41,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:41,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:41,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:54:41,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:54:41,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:54:41,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:54:41,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:54:41,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63348367] [2020-10-14 08:54:41,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:54:41,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:54:41,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84233923] [2020-10-14 08:54:41,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:54:41,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:54:41,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:54:41,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:54:41,602 INFO L87 Difference]: Start difference. First operand 1911 states and 2629 transitions. Second operand 6 states. [2020-10-14 08:54:42,744 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 467 [2020-10-14 08:54:50,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:54:50,211 INFO L93 Difference]: Finished difference Result 6918 states and 10014 transitions. [2020-10-14 08:54:50,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:54:50,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-10-14 08:54:50,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:54:50,243 INFO L225 Difference]: With dead ends: 6918 [2020-10-14 08:54:50,243 INFO L226 Difference]: Without dead ends: 6298 [2020-10-14 08:54:50,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:54:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2020-10-14 08:54:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 4920. [2020-10-14 08:54:50,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4920 states. [2020-10-14 08:54:50,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4920 states to 4920 states and 7075 transitions. [2020-10-14 08:54:50,507 INFO L78 Accepts]: Start accepts. Automaton has 4920 states and 7075 transitions. Word has length 91 [2020-10-14 08:54:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:54:50,508 INFO L479 AbstractCegarLoop]: Abstraction has 4920 states and 7075 transitions. [2020-10-14 08:54:50,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:54:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 4920 states and 7075 transitions. [2020-10-14 08:54:50,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 08:54:50,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:54:50,514 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] [2020-10-14 08:54:50,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:54:50,514 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:54:50,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:54:50,515 INFO L82 PathProgramCache]: Analyzing trace with hash 748210242, now seen corresponding path program 1 times [2020-10-14 08:54:50,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:54:50,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131868982] [2020-10-14 08:54:50,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:54:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:50,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:50,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:50,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:50,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:51,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:51,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:51,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:52,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:55,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:55,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 08:54:55,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:54:55,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:54:55,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:55,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:55,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:54:55,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:54:55,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:54:55,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:54:56,793 WARN L193 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:54:56,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:54:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:54:56,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:54:56,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:54:56,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:54:56,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:54:56,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:54:56,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:54:56,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:54:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:54:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:54:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:54:56,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:54:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:54:56,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131868982] [2020-10-14 08:54:56,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:54:56,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:54:56,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896039198] [2020-10-14 08:54:56,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:54:56,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:54:56,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:54:56,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:54:56,879 INFO L87 Difference]: Start difference. First operand 4920 states and 7075 transitions. Second operand 7 states. [2020-10-14 08:54:57,945 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2020-10-14 08:55:05,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:55:05,555 INFO L93 Difference]: Finished difference Result 9088 states and 13435 transitions. [2020-10-14 08:55:05,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:55:05,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-14 08:55:05,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:55:05,590 INFO L225 Difference]: With dead ends: 9088 [2020-10-14 08:55:05,590 INFO L226 Difference]: Without dead ends: 7890 [2020-10-14 08:55:05,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:55:05,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7890 states. [2020-10-14 08:55:05,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7890 to 4914. [2020-10-14 08:55:05,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4914 states. [2020-10-14 08:55:05,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4914 states to 4914 states and 7068 transitions. [2020-10-14 08:55:05,876 INFO L78 Accepts]: Start accepts. Automaton has 4914 states and 7068 transitions. Word has length 91 [2020-10-14 08:55:05,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:55:05,877 INFO L479 AbstractCegarLoop]: Abstraction has 4914 states and 7068 transitions. [2020-10-14 08:55:05,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:55:05,877 INFO L276 IsEmpty]: Start isEmpty. Operand 4914 states and 7068 transitions. [2020-10-14 08:55:05,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:55:05,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:05,885 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] [2020-10-14 08:55:05,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:55:05,885 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:05,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:05,886 INFO L82 PathProgramCache]: Analyzing trace with hash 558516228, now seen corresponding path program 1 times [2020-10-14 08:55:05,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:05,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459133628] [2020-10-14 08:55:05,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:05,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:06,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:06,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:07,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:07,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:07,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:07,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:08,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:08,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:08,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:09,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:10,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:10,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:55:10,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:55:10,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 08:55:10,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:10,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:10,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:55:10,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:55:10,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:55:10,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:11,973 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:55:11,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:11,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:11,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:11,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:11,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:12,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:55:12,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:12,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:12,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:55:12,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:12,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:55:12,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:12,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:55:12,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459133628] [2020-10-14 08:55:12,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:12,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:55:12,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619541027] [2020-10-14 08:55:12,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:55:12,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:12,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:55:12,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:55:12,038 INFO L87 Difference]: Start difference. First operand 4914 states and 7068 transitions. Second operand 6 states. [2020-10-14 08:55:13,097 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 467 [2020-10-14 08:55:20,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:55:20,363 INFO L93 Difference]: Finished difference Result 7647 states and 11092 transitions. [2020-10-14 08:55:20,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:55:20,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-14 08:55:20,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:55:20,390 INFO L225 Difference]: With dead ends: 7647 [2020-10-14 08:55:20,390 INFO L226 Difference]: Without dead ends: 6387 [2020-10-14 08:55:20,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:55:20,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2020-10-14 08:55:20,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 4909. [2020-10-14 08:55:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4909 states. [2020-10-14 08:55:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4909 states to 4909 states and 7062 transitions. [2020-10-14 08:55:20,619 INFO L78 Accepts]: Start accepts. Automaton has 4909 states and 7062 transitions. Word has length 92 [2020-10-14 08:55:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:55:20,620 INFO L479 AbstractCegarLoop]: Abstraction has 4909 states and 7062 transitions. [2020-10-14 08:55:20,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:55:20,620 INFO L276 IsEmpty]: Start isEmpty. Operand 4909 states and 7062 transitions. [2020-10-14 08:55:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:55:20,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:20,626 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] [2020-10-14 08:55:20,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:55:20,627 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:20,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:20,627 INFO L82 PathProgramCache]: Analyzing trace with hash -30073666, now seen corresponding path program 1 times [2020-10-14 08:55:20,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:20,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797486554] [2020-10-14 08:55:20,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:20,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:20,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:20,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:20,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:21,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:22,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:22,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:22,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:23,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:23,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:25,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:25,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:55:25,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:55:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:55:25,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:25,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:55:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:55:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:55:25,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:26,762 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:55:26,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:26,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:26,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:26,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:26,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:55:26,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:26,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:55:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:55:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:26,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:55:26,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797486554] [2020-10-14 08:55:26,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:26,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:55:26,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915370522] [2020-10-14 08:55:26,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:55:26,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:26,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:55:26,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:55:26,823 INFO L87 Difference]: Start difference. First operand 4909 states and 7062 transitions. Second operand 7 states. [2020-10-14 08:55:27,898 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 476 [2020-10-14 08:55:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:55:35,756 INFO L93 Difference]: Finished difference Result 9287 states and 13688 transitions. [2020-10-14 08:55:35,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:55:35,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-14 08:55:35,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:55:35,777 INFO L225 Difference]: With dead ends: 9287 [2020-10-14 08:55:35,778 INFO L226 Difference]: Without dead ends: 7989 [2020-10-14 08:55:35,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:55:35,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2020-10-14 08:55:36,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 4903. [2020-10-14 08:55:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4903 states. [2020-10-14 08:55:36,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4903 states to 4903 states and 7055 transitions. [2020-10-14 08:55:36,013 INFO L78 Accepts]: Start accepts. Automaton has 4903 states and 7055 transitions. Word has length 92 [2020-10-14 08:55:36,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:55:36,014 INFO L479 AbstractCegarLoop]: Abstraction has 4903 states and 7055 transitions. [2020-10-14 08:55:36,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:55:36,014 INFO L276 IsEmpty]: Start isEmpty. Operand 4903 states and 7055 transitions. [2020-10-14 08:55:36,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:55:36,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:36,019 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] [2020-10-14 08:55:36,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:55:36,019 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:36,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:36,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1949628827, now seen corresponding path program 1 times [2020-10-14 08:55:36,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:36,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865684450] [2020-10-14 08:55:36,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:36,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:36,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:36,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:37,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:37,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:38,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:38,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:38,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:38,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:41,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:41,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:55:41,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:55:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:55:41,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:41,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:55:41,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:55:41,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:55:41,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:42,106 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:55:42,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:42,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:42,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:42,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:42,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:55:42,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:42,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:42,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:55:42,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:55:42,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:55:42,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865684450] [2020-10-14 08:55:42,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:42,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:55:42,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198575534] [2020-10-14 08:55:42,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:55:42,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:42,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:55:42,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:55:42,165 INFO L87 Difference]: Start difference. First operand 4903 states and 7055 transitions. Second operand 6 states. [2020-10-14 08:55:43,177 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 467 [2020-10-14 08:55:50,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:55:50,558 INFO L93 Difference]: Finished difference Result 7542 states and 10950 transitions. [2020-10-14 08:55:50,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:55:50,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-14 08:55:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:55:50,573 INFO L225 Difference]: With dead ends: 7542 [2020-10-14 08:55:50,574 INFO L226 Difference]: Without dead ends: 6314 [2020-10-14 08:55:50,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:55:50,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6314 states. [2020-10-14 08:55:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6314 to 4890. [2020-10-14 08:55:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4890 states. [2020-10-14 08:55:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 7038 transitions. [2020-10-14 08:55:50,837 INFO L78 Accepts]: Start accepts. Automaton has 4890 states and 7038 transitions. Word has length 92 [2020-10-14 08:55:50,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:55:50,837 INFO L479 AbstractCegarLoop]: Abstraction has 4890 states and 7038 transitions. [2020-10-14 08:55:50,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:55:50,838 INFO L276 IsEmpty]: Start isEmpty. Operand 4890 states and 7038 transitions. [2020-10-14 08:55:50,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:55:50,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:55:50,842 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] [2020-10-14 08:55:50,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:55:50,843 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:55:50,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:55:50,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1329763356, now seen corresponding path program 1 times [2020-10-14 08:55:50,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:55:50,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65997376] [2020-10-14 08:55:50,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:55:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:50,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:50,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:51,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:51,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:51,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:53,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:53,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:53,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:54,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:54,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:55,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:55,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:55,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:55:55,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:55:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:55:55,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:55,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:55:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:55:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:55:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:55:56,951 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:55:56,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:55:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:55:56,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:55:56,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:55:56,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:55:56,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:55:56,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:55:56,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:55:56,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:55:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:55:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:55:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:55:56,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:55:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:55:57,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65997376] [2020-10-14 08:55:57,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:55:57,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:55:57,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326309638] [2020-10-14 08:55:57,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:55:57,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:55:57,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:55:57,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:55:57,004 INFO L87 Difference]: Start difference. First operand 4890 states and 7038 transitions. Second operand 7 states. [2020-10-14 08:55:58,072 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2020-10-14 08:56:05,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:05,659 INFO L93 Difference]: Finished difference Result 9157 states and 13521 transitions. [2020-10-14 08:56:05,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:56:05,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-14 08:56:05,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:05,677 INFO L225 Difference]: With dead ends: 9157 [2020-10-14 08:56:05,678 INFO L226 Difference]: Without dead ends: 7908 [2020-10-14 08:56:05,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:56:05,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2020-10-14 08:56:05,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 4876. [2020-10-14 08:56:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4876 states. [2020-10-14 08:56:06,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 7020 transitions. [2020-10-14 08:56:06,002 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 7020 transitions. Word has length 92 [2020-10-14 08:56:06,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:06,002 INFO L479 AbstractCegarLoop]: Abstraction has 4876 states and 7020 transitions. [2020-10-14 08:56:06,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:56:06,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 7020 transitions. [2020-10-14 08:56:06,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 08:56:06,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:06,006 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] [2020-10-14 08:56:06,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:56:06,007 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:06,007 INFO L82 PathProgramCache]: Analyzing trace with hash 300838980, now seen corresponding path program 1 times [2020-10-14 08:56:06,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:06,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867211971] [2020-10-14 08:56:06,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:06,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:06,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:06,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:06,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:06,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:06,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:07,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:07,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:08,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:08,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:08,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:09,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:10,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:10,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:11,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:11,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 08:56:11,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:56:11,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:56:11,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:11,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:56:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:56:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 08:56:11,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:12,135 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:56:12,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:12,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:12,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:12,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:12,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:12,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:56:12,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:12,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:56:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:56:12,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:12,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:56:12,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867211971] [2020-10-14 08:56:12,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:12,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:56:12,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037004143] [2020-10-14 08:56:12,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:56:12,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:12,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:56:12,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:56:12,203 INFO L87 Difference]: Start difference. First operand 4876 states and 7020 transitions. Second operand 6 states. [2020-10-14 08:56:13,258 WARN L193 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2020-10-14 08:56:18,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:18,510 INFO L93 Difference]: Finished difference Result 11082 states and 16280 transitions. [2020-10-14 08:56:18,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:56:18,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-14 08:56:18,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:18,527 INFO L225 Difference]: With dead ends: 11082 [2020-10-14 08:56:18,527 INFO L226 Difference]: Without dead ends: 7816 [2020-10-14 08:56:18,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:56:18,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7816 states. [2020-10-14 08:56:19,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7816 to 7756. [2020-10-14 08:56:19,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7756 states. [2020-10-14 08:56:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 11378 transitions. [2020-10-14 08:56:19,046 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 11378 transitions. Word has length 92 [2020-10-14 08:56:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:19,046 INFO L479 AbstractCegarLoop]: Abstraction has 7756 states and 11378 transitions. [2020-10-14 08:56:19,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:56:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 11378 transitions. [2020-10-14 08:56:19,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:56:19,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:19,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:56:19,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:56:19,052 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:19,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:19,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1150965123, now seen corresponding path program 1 times [2020-10-14 08:56:19,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:19,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30626110] [2020-10-14 08:56:19,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:19,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:19,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:19,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:19,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:21,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:21,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:22,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:22,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:23,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:23,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:23,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:24,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:24,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:24,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:56:24,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 08:56:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:56:24,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:24,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:56:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:56:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:56:24,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:25,199 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:56:25,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:25,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:25,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:25,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:25,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:25,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:56:25,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:25,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:25,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:56:25,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:25,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:56:25,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:56:25,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30626110] [2020-10-14 08:56:25,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:25,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:56:25,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607727567] [2020-10-14 08:56:25,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:56:25,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:25,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:56:25,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:56:25,243 INFO L87 Difference]: Start difference. First operand 7756 states and 11378 transitions. Second operand 6 states. [2020-10-14 08:56:26,279 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 467 [2020-10-14 08:56:33,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:33,331 INFO L93 Difference]: Finished difference Result 12507 states and 18541 transitions. [2020-10-14 08:56:33,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:56:33,332 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-10-14 08:56:33,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:33,347 INFO L225 Difference]: With dead ends: 12507 [2020-10-14 08:56:33,347 INFO L226 Difference]: Without dead ends: 10008 [2020-10-14 08:56:33,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:56:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10008 states. [2020-10-14 08:56:33,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10008 to 7499. [2020-10-14 08:56:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7499 states. [2020-10-14 08:56:33,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7499 states to 7499 states and 11019 transitions. [2020-10-14 08:56:33,775 INFO L78 Accepts]: Start accepts. Automaton has 7499 states and 11019 transitions. Word has length 93 [2020-10-14 08:56:33,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:33,775 INFO L479 AbstractCegarLoop]: Abstraction has 7499 states and 11019 transitions. [2020-10-14 08:56:33,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:56:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 7499 states and 11019 transitions. [2020-10-14 08:56:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:56:33,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:33,779 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] [2020-10-14 08:56:33,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:56:33,779 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:33,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:33,780 INFO L82 PathProgramCache]: Analyzing trace with hash -893666260, now seen corresponding path program 1 times [2020-10-14 08:56:33,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:33,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642020243] [2020-10-14 08:56:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:33,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:33,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:33,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:34,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:35,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:35,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:36,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:36,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:38,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:38,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:38,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:56:38,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:56:38,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:56:38,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:38,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:38,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:56:38,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:56:38,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 08:56:38,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:39,926 WARN L193 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:56:39,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:39,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:39,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:39,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:39,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:39,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:56:39,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:39,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:39,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:56:39,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:39,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:56:39,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:39,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:56:39,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642020243] [2020-10-14 08:56:39,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:39,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:56:39,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238753118] [2020-10-14 08:56:39,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:56:39,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:39,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:56:39,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:56:39,983 INFO L87 Difference]: Start difference. First operand 7499 states and 11019 transitions. Second operand 7 states. [2020-10-14 08:56:41,056 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 476 [2020-10-14 08:56:48,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:56:48,628 INFO L93 Difference]: Finished difference Result 15598 states and 23374 transitions. [2020-10-14 08:56:48,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:56:48,629 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-10-14 08:56:48,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:56:48,648 INFO L225 Difference]: With dead ends: 15598 [2020-10-14 08:56:48,649 INFO L226 Difference]: Without dead ends: 13061 [2020-10-14 08:56:48,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:56:48,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13061 states. [2020-10-14 08:56:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13061 to 7230. [2020-10-14 08:56:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7230 states. [2020-10-14 08:56:49,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7230 states to 7230 states and 10650 transitions. [2020-10-14 08:56:49,023 INFO L78 Accepts]: Start accepts. Automaton has 7230 states and 10650 transitions. Word has length 93 [2020-10-14 08:56:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:56:49,023 INFO L479 AbstractCegarLoop]: Abstraction has 7230 states and 10650 transitions. [2020-10-14 08:56:49,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:56:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 7230 states and 10650 transitions. [2020-10-14 08:56:49,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:56:49,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:56:49,026 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] [2020-10-14 08:56:49,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:56:49,026 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:56:49,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:56:49,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1157486657, now seen corresponding path program 1 times [2020-10-14 08:56:49,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:56:49,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661636946] [2020-10-14 08:56:49,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:56:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:49,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:49,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:49,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:49,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:49,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:50,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:50,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:50,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:50,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:50,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:51,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:53,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:53,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:54,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:54,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:54,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:56:54,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:56:54,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-14 08:56:54,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:54,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:54,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:56:54,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:56:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:56:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:55,201 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-14 08:56:55,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:56:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:56:55,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:56:55,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:56:55,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:56:55,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:56:55,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 08:56:55,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:56:55,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:56:55,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:56:55,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:56:55,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:56:55,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:56:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:56:55,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661636946] [2020-10-14 08:56:55,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:56:55,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:56:55,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961915202] [2020-10-14 08:56:55,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:56:55,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:56:55,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:56:55,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:56:55,305 INFO L87 Difference]: Start difference. First operand 7230 states and 10650 transitions. Second operand 6 states. [2020-10-14 08:56:56,359 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 475 [2020-10-14 08:57:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:57:01,324 INFO L93 Difference]: Finished difference Result 18148 states and 27095 transitions. [2020-10-14 08:57:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:57:01,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-10-14 08:57:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:57:01,337 INFO L225 Difference]: With dead ends: 18148 [2020-10-14 08:57:01,338 INFO L226 Difference]: Without dead ends: 12708 [2020-10-14 08:57:01,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 08:57:01,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12708 states. [2020-10-14 08:57:01,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12708 to 12628. [2020-10-14 08:57:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12628 states. [2020-10-14 08:57:01,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12628 states to 12628 states and 18759 transitions. [2020-10-14 08:57:01,936 INFO L78 Accepts]: Start accepts. Automaton has 12628 states and 18759 transitions. Word has length 93 [2020-10-14 08:57:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:57:01,936 INFO L479 AbstractCegarLoop]: Abstraction has 12628 states and 18759 transitions. [2020-10-14 08:57:01,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:57:01,936 INFO L276 IsEmpty]: Start isEmpty. Operand 12628 states and 18759 transitions. [2020-10-14 08:57:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:57:01,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:57:01,940 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] [2020-10-14 08:57:01,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:57:01,940 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:57:01,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:57:01,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1952681336, now seen corresponding path program 1 times [2020-10-14 08:57:01,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:57:01,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985737051] [2020-10-14 08:57:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:57:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:57:02,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:02,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:02,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:02,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:03,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:03,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:04,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:05,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:05,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:06,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:06,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:57:07,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:57:07,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 08:57:07,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:57:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 08:57:07,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:57:07,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:57:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:57:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:57:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:57:07,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0