/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/eca-rers2012/Problem18_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:24:16,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:24:16,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:24:16,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:24:16,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:24:16,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:24:16,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:24:16,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:24:16,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:24:16,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:24:16,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:24:16,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:24:16,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:24:16,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:24:16,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:24:16,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:24:16,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:24:16,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:24:16,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:24:16,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:24:16,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:24:16,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:24:16,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:24:16,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:24:16,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:24:16,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:24:16,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:24:16,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:24:16,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:24:16,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:24:16,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:24:16,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:24:16,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:24:16,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:24:16,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:24:16,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:24:16,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:24:16,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:24:16,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:24:16,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:24:16,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:24:16,674 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 04:24:16,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:24:16,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:24:16,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:24:16,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:24:16,714 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:24:16,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:24:16,715 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:24:16,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:24:16,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:24:16,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:24:16,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:24:16,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:24:16,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:24:16,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:24:16,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:24:16,718 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:24:16,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:24:16,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:24:16,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:24:16,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:24:16,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:24:16,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:24:16,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:24:16,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:24:16,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:24:16,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:24:16,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:24:16,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:24:16,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:24:16,720 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 04:24:17,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:24:17,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:24:17,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:24:17,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:24:17,087 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:24:17,088 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label58.c [2020-10-14 04:24:17,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8da610014/119cdd308e6f454a861ac6db40afbb18/FLAG8ae0b9bf5 [2020-10-14 04:24:17,877 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:24:17,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label58.c [2020-10-14 04:24:17,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8da610014/119cdd308e6f454a861ac6db40afbb18/FLAG8ae0b9bf5 [2020-10-14 04:24:17,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8da610014/119cdd308e6f454a861ac6db40afbb18 [2020-10-14 04:24:17,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:24:17,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:24:17,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:24:17,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:24:17,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:24:17,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:24:17" (1/1) ... [2020-10-14 04:24:17,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:17, skipping insertion in model container [2020-10-14 04:24:17,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:24:17" (1/1) ... [2020-10-14 04:24:17,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:24:18,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:24:19,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:24:19,340 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:24:19,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:24:19,862 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:24:19,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19 WrapperNode [2020-10-14 04:24:19,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:24:19,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:24:19,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:24:19,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:24:19,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19" (1/1) ... [2020-10-14 04:24:19,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19" (1/1) ... [2020-10-14 04:24:19,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19" (1/1) ... [2020-10-14 04:24:19,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19" (1/1) ... [2020-10-14 04:24:20,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19" (1/1) ... [2020-10-14 04:24:20,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19" (1/1) ... [2020-10-14 04:24:20,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19" (1/1) ... [2020-10-14 04:24:20,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:24:20,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:24:20,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:24:20,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:24:20,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19" (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 04:24:20,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:24:20,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:24:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:24:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:24:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 04:24:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:24:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:24:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:24:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 04:24:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:24:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:24:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:24:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:24:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:24:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:24:26,229 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:24:26,230 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:24:26,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:24:26 BoogieIcfgContainer [2020-10-14 04:24:26,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:24:26,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:24:26,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:24:26,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:24:26,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:24:17" (1/3) ... [2020-10-14 04:24:26,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183b9ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:24:26, skipping insertion in model container [2020-10-14 04:24:26,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:24:19" (2/3) ... [2020-10-14 04:24:26,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183b9ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:24:26, skipping insertion in model container [2020-10-14 04:24:26,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:24:26" (3/3) ... [2020-10-14 04:24:26,250 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label58.c [2020-10-14 04:24:26,261 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:24:26,277 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:24:26,292 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:24:26,321 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:24:26,322 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:24:26,322 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:24:26,322 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:24:26,322 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:24:26,322 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:24:26,323 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:24:26,323 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:24:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 04:24:26,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 04:24:26,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:26,365 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] [2020-10-14 04:24:26,366 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:26,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:26,372 INFO L82 PathProgramCache]: Analyzing trace with hash -27900295, now seen corresponding path program 1 times [2020-10-14 04:24:26,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:26,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247041289] [2020-10-14 04:24:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:26,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:26,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:26,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 04:24:26,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:26,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-10-14 04:24:26,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:26,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:24:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:24:26,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 04:24:26,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 04:24:26,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:26,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:26,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:26,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:26,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:26,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:24:26,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:26,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:24:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:27,013 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 04:24:27,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247041289] [2020-10-14 04:24:27,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:24:27,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:24:27,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475043667] [2020-10-14 04:24:27,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:24:27,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:27,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:24:27,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:24:27,041 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-14 04:24:40,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:24:40,023 INFO L93 Difference]: Finished difference Result 2984 states and 5769 transitions. [2020-10-14 04:24:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:24:40,029 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-10-14 04:24:40,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:24:40,066 INFO L225 Difference]: With dead ends: 2984 [2020-10-14 04:24:40,066 INFO L226 Difference]: Without dead ends: 2142 [2020-10-14 04:24:40,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:24:40,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-14 04:24:40,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-14 04:24:40,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-14 04:24:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3571 transitions. [2020-10-14 04:24:40,269 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3571 transitions. Word has length 46 [2020-10-14 04:24:40,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:24:40,271 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 3571 transitions. [2020-10-14 04:24:40,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:24:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3571 transitions. [2020-10-14 04:24:40,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 04:24:40,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:40,288 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:40,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:24:40,289 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:40,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:40,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1702034768, now seen corresponding path program 1 times [2020-10-14 04:24:40,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:40,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240961178] [2020-10-14 04:24:40,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:40,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:40,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:41,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:41,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:41,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 04:24:41,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:24:41,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1407 [2020-10-14 04:24:41,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:41,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:24:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 04:24:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 04:24:41,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:24:41,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:41,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:41,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:41,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:41,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:41,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:24:41,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:41,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:41,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:41,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:24:41,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:24:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:41,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:41,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:41,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:24:41,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 04:24:42,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:42,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:24:42,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:24:42,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240961178] [2020-10-14 04:24:42,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:24:42,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:24:42,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853179894] [2020-10-14 04:24:42,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:24:42,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:42,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:24:42,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:24:42,075 INFO L87 Difference]: Start difference. First operand 2135 states and 3571 transitions. Second operand 5 states. [2020-10-14 04:24:52,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:24:52,668 INFO L93 Difference]: Finished difference Result 6409 states and 10805 transitions. [2020-10-14 04:24:52,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:24:52,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-10-14 04:24:52,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:24:52,697 INFO L225 Difference]: With dead ends: 6409 [2020-10-14 04:24:52,697 INFO L226 Difference]: Without dead ends: 4280 [2020-10-14 04:24:52,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:24:52,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2020-10-14 04:24:52,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4276. [2020-10-14 04:24:52,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-10-14 04:24:52,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6383 transitions. [2020-10-14 04:24:52,830 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6383 transitions. Word has length 134 [2020-10-14 04:24:52,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:24:52,833 INFO L479 AbstractCegarLoop]: Abstraction has 4276 states and 6383 transitions. [2020-10-14 04:24:52,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:24:52,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6383 transitions. [2020-10-14 04:24:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-14 04:24:52,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:24:52,839 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:52,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:24:52,840 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:24:52,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:24:52,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1450707736, now seen corresponding path program 1 times [2020-10-14 04:24:52,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:24:52,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911145711] [2020-10-14 04:24:52,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:24:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:52,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:53,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:53,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:53,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 04:24:53,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:24:53,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-10-14 04:24:53,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:53,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:24:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 04:24:53,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 04:24:53,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:53,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:24:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:53,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:53,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:53,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:24:53,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:24:53,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:53,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:24:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:24:53,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:53,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:24:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:24:53,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:24:54,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:24:54,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 04:24:54,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:24:54,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 04:24:54,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:24:54,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:24:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:24:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:24:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 04:24:54,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:24:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:24:54,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911145711] [2020-10-14 04:24:54,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:24:54,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:24:54,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994414227] [2020-10-14 04:24:54,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:24:54,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:24:54,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:24:54,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:24:54,240 INFO L87 Difference]: Start difference. First operand 4276 states and 6383 transitions. Second operand 5 states. [2020-10-14 04:25:02,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:02,170 INFO L93 Difference]: Finished difference Result 12807 states and 19397 transitions. [2020-10-14 04:25:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:25:02,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 178 [2020-10-14 04:25:02,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:02,219 INFO L225 Difference]: With dead ends: 12807 [2020-10-14 04:25:02,220 INFO L226 Difference]: Without dead ends: 8537 [2020-10-14 04:25:02,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:25:02,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8537 states. [2020-10-14 04:25:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8537 to 8533. [2020-10-14 04:25:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8533 states. [2020-10-14 04:25:02,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8533 states to 8533 states and 12016 transitions. [2020-10-14 04:25:02,543 INFO L78 Accepts]: Start accepts. Automaton has 8533 states and 12016 transitions. Word has length 178 [2020-10-14 04:25:02,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:02,544 INFO L479 AbstractCegarLoop]: Abstraction has 8533 states and 12016 transitions. [2020-10-14 04:25:02,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:25:02,544 INFO L276 IsEmpty]: Start isEmpty. Operand 8533 states and 12016 transitions. [2020-10-14 04:25:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-14 04:25:02,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:02,548 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:02,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:25:02,548 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:02,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:02,549 INFO L82 PathProgramCache]: Analyzing trace with hash 280061133, now seen corresponding path program 1 times [2020-10-14 04:25:02,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:02,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848520367] [2020-10-14 04:25:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:02,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:02,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:03,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:03,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-14 04:25:03,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:25:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1042 [2020-10-14 04:25:03,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:03,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 04:25:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 04:25:03,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:03,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:03,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:03,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:03,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:03,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:03,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:25:03,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:03,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:03,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:03,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:03,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:03,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:03,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 04:25:03,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 04:25:03,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:03,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 04:25:03,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:25:03,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848520367] [2020-10-14 04:25:03,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:03,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:25:03,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441040163] [2020-10-14 04:25:03,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:25:03,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:03,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:25:03,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:25:03,948 INFO L87 Difference]: Start difference. First operand 8533 states and 12016 transitions. Second operand 5 states. [2020-10-14 04:25:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:14,993 INFO L93 Difference]: Finished difference Result 24859 states and 35840 transitions. [2020-10-14 04:25:14,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:25:14,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 183 [2020-10-14 04:25:14,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:15,074 INFO L225 Difference]: With dead ends: 24859 [2020-10-14 04:25:15,074 INFO L226 Difference]: Without dead ends: 16332 [2020-10-14 04:25:15,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:25:15,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16332 states. [2020-10-14 04:25:15,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16332 to 16328. [2020-10-14 04:25:15,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16328 states. [2020-10-14 04:25:15,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16328 states to 16328 states and 21407 transitions. [2020-10-14 04:25:15,507 INFO L78 Accepts]: Start accepts. Automaton has 16328 states and 21407 transitions. Word has length 183 [2020-10-14 04:25:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:15,508 INFO L479 AbstractCegarLoop]: Abstraction has 16328 states and 21407 transitions. [2020-10-14 04:25:15,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:25:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 16328 states and 21407 transitions. [2020-10-14 04:25:15,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-10-14 04:25:15,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:15,529 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:15,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:25:15,529 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:15,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:15,530 INFO L82 PathProgramCache]: Analyzing trace with hash 121414596, now seen corresponding path program 1 times [2020-10-14 04:25:15,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:15,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531534314] [2020-10-14 04:25:15,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:15,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:15,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:17,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:19,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:19,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 379 [2020-10-14 04:25:19,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:25:19,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3908 [2020-10-14 04:25:19,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:19,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:19,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 04:25:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 04:25:19,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:19,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:19,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:19,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:19,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:19,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:25:19,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:19,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:19,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:19,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:19,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:19,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:25:19,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:19,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 04:25:19,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:19,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 04:25:19,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:19,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 04:25:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:20,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:20,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 04:25:20,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-14 04:25:20,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:20,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 04:25:20,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:21,185 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:25:21,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531534314] [2020-10-14 04:25:21,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:21,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:25:21,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346819532] [2020-10-14 04:25:21,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:25:21,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:21,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:25:21,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:25:21,190 INFO L87 Difference]: Start difference. First operand 16328 states and 21407 transitions. Second operand 7 states. [2020-10-14 04:25:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:29,195 INFO L93 Difference]: Finished difference Result 35699 states and 47408 transitions. [2020-10-14 04:25:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:25:29,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 367 [2020-10-14 04:25:29,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:29,263 INFO L225 Difference]: With dead ends: 35699 [2020-10-14 04:25:29,263 INFO L226 Difference]: Without dead ends: 19377 [2020-10-14 04:25:29,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:25:29,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19377 states. [2020-10-14 04:25:29,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19377 to 19373. [2020-10-14 04:25:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19373 states. [2020-10-14 04:25:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19373 states to 19373 states and 25591 transitions. [2020-10-14 04:25:29,695 INFO L78 Accepts]: Start accepts. Automaton has 19373 states and 25591 transitions. Word has length 367 [2020-10-14 04:25:29,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:29,696 INFO L479 AbstractCegarLoop]: Abstraction has 19373 states and 25591 transitions. [2020-10-14 04:25:29,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:25:29,696 INFO L276 IsEmpty]: Start isEmpty. Operand 19373 states and 25591 transitions. [2020-10-14 04:25:29,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-10-14 04:25:29,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:29,725 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:29,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:25:29,726 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:29,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:29,726 INFO L82 PathProgramCache]: Analyzing trace with hash 661969535, now seen corresponding path program 1 times [2020-10-14 04:25:29,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:29,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744266374] [2020-10-14 04:25:29,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:29,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:29,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:29,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:31,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:34,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:34,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 451 [2020-10-14 04:25:34,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:25:34,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 04:25:34,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:34,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 04:25:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 04:25:34,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:34,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:34,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:34,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:34,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:34,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:25:34,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:34,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:34,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:34,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:34,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:34,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:34,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:25:34,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:34,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 04:25:34,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:34,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:34,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:34,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:34,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 04:25:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:35,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:35,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:35,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:25:35,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:35,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 04:25:35,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:35,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:25:35,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:35,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 04:25:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:35,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:35,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:35,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 04:25:35,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:35,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-14 04:25:35,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:35,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:35,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:25:35,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:35,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 04:25:35,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 255 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 04:25:35,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744266374] [2020-10-14 04:25:35,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:35,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:25:35,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804342210] [2020-10-14 04:25:35,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:25:35,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:35,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:25:35,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:25:35,976 INFO L87 Difference]: Start difference. First operand 19373 states and 25591 transitions. Second operand 7 states. [2020-10-14 04:25:47,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:25:47,024 INFO L93 Difference]: Finished difference Result 44564 states and 59798 transitions. [2020-10-14 04:25:47,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:25:47,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 437 [2020-10-14 04:25:47,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:25:47,143 INFO L225 Difference]: With dead ends: 44564 [2020-10-14 04:25:47,143 INFO L226 Difference]: Without dead ends: 25197 [2020-10-14 04:25:47,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:25:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25197 states. [2020-10-14 04:25:47,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25197 to 25168. [2020-10-14 04:25:47,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25168 states. [2020-10-14 04:25:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25168 states to 25168 states and 32518 transitions. [2020-10-14 04:25:47,714 INFO L78 Accepts]: Start accepts. Automaton has 25168 states and 32518 transitions. Word has length 437 [2020-10-14 04:25:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:25:47,715 INFO L479 AbstractCegarLoop]: Abstraction has 25168 states and 32518 transitions. [2020-10-14 04:25:47,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:25:47,715 INFO L276 IsEmpty]: Start isEmpty. Operand 25168 states and 32518 transitions. [2020-10-14 04:25:47,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2020-10-14 04:25:47,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:25:47,754 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:47,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:25:47,755 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:25:47,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:25:47,755 INFO L82 PathProgramCache]: Analyzing trace with hash 223030725, now seen corresponding path program 1 times [2020-10-14 04:25:47,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:25:47,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820482733] [2020-10-14 04:25:47,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:25:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:47,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:47,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:48,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:52,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:52,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 489 [2020-10-14 04:25:52,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:25:52,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 04:25:52,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:52,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:25:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-14 04:25:52,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 334 [2020-10-14 04:25:52,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:53,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:25:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:53,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:53,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:53,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:25:53,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:25:53,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:53,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:53,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:25:53,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:53,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:25:53,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:53,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:25:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:53,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:53,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:53,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:25:53,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 04:25:53,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:53,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:53,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:25:53,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:25:53,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 04:25:53,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:53,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 04:25:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:53,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:53,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:53,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-14 04:25:53,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:53,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 629 [2020-10-14 04:25:53,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:53,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:25:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 335 [2020-10-14 04:25:53,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:54,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:25:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:25:54,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:25:54,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:25:54,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 04:25:54,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:25:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 04:25:54,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:25:54,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:25:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:25:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:25:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 04:25:54,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:25:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 172 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:25:54,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820482733] [2020-10-14 04:25:54,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:25:54,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:25:54,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288208657] [2020-10-14 04:25:54,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:25:54,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:25:54,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:25:54,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:25:54,490 INFO L87 Difference]: Start difference. First operand 25168 states and 32518 transitions. Second operand 8 states. [2020-10-14 04:26:04,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:26:04,851 INFO L93 Difference]: Finished difference Result 62619 states and 83415 transitions. [2020-10-14 04:26:04,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:26:04,852 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 475 [2020-10-14 04:26:04,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:26:04,962 INFO L225 Difference]: With dead ends: 62619 [2020-10-14 04:26:04,962 INFO L226 Difference]: Without dead ends: 35189 [2020-10-14 04:26:05,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:26:05,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35189 states. [2020-10-14 04:26:05,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35189 to 30936. [2020-10-14 04:26:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30936 states. [2020-10-14 04:26:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30936 states to 30936 states and 35840 transitions. [2020-10-14 04:26:05,559 INFO L78 Accepts]: Start accepts. Automaton has 30936 states and 35840 transitions. Word has length 475 [2020-10-14 04:26:05,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:26:05,560 INFO L479 AbstractCegarLoop]: Abstraction has 30936 states and 35840 transitions. [2020-10-14 04:26:05,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:26:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 30936 states and 35840 transitions. [2020-10-14 04:26:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2020-10-14 04:26:05,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:26:05,588 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:05,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:26:05,588 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:26:05,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:26:05,589 INFO L82 PathProgramCache]: Analyzing trace with hash 58750772, now seen corresponding path program 1 times [2020-10-14 04:26:05,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:26:05,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616847990] [2020-10-14 04:26:05,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:26:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:05,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:05,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:05,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:10,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:10,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 514 [2020-10-14 04:26:10,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:26:10,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 04:26:10,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:10,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:10,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:26:10,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:26:10,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 334 [2020-10-14 04:26:10,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:10,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:26:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:10,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:10,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:10,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:26:10,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:10,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:26:10,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:10,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:10,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:10,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:10,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:10,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:10,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:26:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:10,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:11,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:11,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:26:11,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:11,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 04:26:11,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:11,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:11,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:26:11,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:11,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:26:11,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:11,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:26:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:11,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:11,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:11,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-14 04:26:11,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:11,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-14 04:26:11,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:11,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:11,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:26:11,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:26:11,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 335 [2020-10-14 04:26:11,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:11,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:26:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:11,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:11,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:11,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 04:26:11,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:11,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 04:26:11,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:11,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:26:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:26:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 04:26:11,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:26:11,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616847990] [2020-10-14 04:26:11,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:26:11,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:26:11,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381666861] [2020-10-14 04:26:11,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:26:11,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:26:11,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:26:11,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:26:11,872 INFO L87 Difference]: Start difference. First operand 30936 states and 35840 transitions. Second operand 7 states. [2020-10-14 04:26:23,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:26:23,930 INFO L93 Difference]: Finished difference Result 85986 states and 105405 transitions. [2020-10-14 04:26:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:26:23,931 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 500 [2020-10-14 04:26:23,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:26:24,112 INFO L225 Difference]: With dead ends: 85986 [2020-10-14 04:26:24,112 INFO L226 Difference]: Without dead ends: 55056 [2020-10-14 04:26:24,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:26:24,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55056 states. [2020-10-14 04:26:26,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55056 to 55031. [2020-10-14 04:26:26,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55031 states. [2020-10-14 04:26:26,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55031 states to 55031 states and 65396 transitions. [2020-10-14 04:26:26,792 INFO L78 Accepts]: Start accepts. Automaton has 55031 states and 65396 transitions. Word has length 500 [2020-10-14 04:26:26,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:26:26,793 INFO L479 AbstractCegarLoop]: Abstraction has 55031 states and 65396 transitions. [2020-10-14 04:26:26,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:26:26,794 INFO L276 IsEmpty]: Start isEmpty. Operand 55031 states and 65396 transitions. [2020-10-14 04:26:26,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2020-10-14 04:26:26,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:26:26,836 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:26,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:26:26,837 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:26:26,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:26:26,838 INFO L82 PathProgramCache]: Analyzing trace with hash -859007692, now seen corresponding path program 1 times [2020-10-14 04:26:26,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:26:26,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125359765] [2020-10-14 04:26:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:26:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:27,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:27,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:28,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:31,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:31,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 569 [2020-10-14 04:26:31,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:26:31,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 04:26:31,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:31,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:26:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 520 [2020-10-14 04:26:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 04:26:31,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:32,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:26:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:32,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:32,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:32,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:26:32,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:32,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:26:32,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:32,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:32,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:32,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:26:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:32,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:32,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:32,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:26:32,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:32,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:26:32,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:32,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:32,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:26:32,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:26:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:32,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:32,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-14 04:26:32,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:32,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 04:26:32,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:32,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:32,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:26:32,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:32,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 381 [2020-10-14 04:26:32,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:32,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:26:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:32,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:32,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:32,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 04:26:32,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:32,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 04:26:32,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:32,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:26:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 04:26:32,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-14 04:26:32,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125359765] [2020-10-14 04:26:32,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:26:32,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:26:32,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443291571] [2020-10-14 04:26:32,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:26:32,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:26:32,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:26:32,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:26:32,910 INFO L87 Difference]: Start difference. First operand 55031 states and 65396 transitions. Second operand 5 states. [2020-10-14 04:26:39,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:26:39,983 INFO L93 Difference]: Finished difference Result 120714 states and 146385 transitions. [2020-10-14 04:26:39,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:26:39,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 555 [2020-10-14 04:26:39,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:26:40,211 INFO L225 Difference]: With dead ends: 120714 [2020-10-14 04:26:40,211 INFO L226 Difference]: Without dead ends: 65693 [2020-10-14 04:26:40,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:26:40,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65693 states. [2020-10-14 04:26:43,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65693 to 64982. [2020-10-14 04:26:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64982 states. [2020-10-14 04:26:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64982 states to 64982 states and 77630 transitions. [2020-10-14 04:26:43,466 INFO L78 Accepts]: Start accepts. Automaton has 64982 states and 77630 transitions. Word has length 555 [2020-10-14 04:26:43,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:26:43,469 INFO L479 AbstractCegarLoop]: Abstraction has 64982 states and 77630 transitions. [2020-10-14 04:26:43,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:26:43,469 INFO L276 IsEmpty]: Start isEmpty. Operand 64982 states and 77630 transitions. [2020-10-14 04:26:43,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2020-10-14 04:26:43,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:26:43,498 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:43,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:26:43,499 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:26:43,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:26:43,499 INFO L82 PathProgramCache]: Analyzing trace with hash -48044292, now seen corresponding path program 1 times [2020-10-14 04:26:43,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:26:43,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796253362] [2020-10-14 04:26:43,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:26:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:43,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:43,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:46,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:48,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:48,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 614 [2020-10-14 04:26:48,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:26:48,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4893 [2020-10-14 04:26:48,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:48,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:26:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 565 [2020-10-14 04:26:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 04:26:48,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:48,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:26:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:48,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:48,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:48,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:26:48,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:48,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:26:48,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:48,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:48,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:48,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:48,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:48,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:26:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:48,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:48,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:48,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:26:48,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:48,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 04:26:48,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:48,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:26:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:26:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:26:48,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:26:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:48,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:48,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:48,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-14 04:26:48,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:48,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 04:26:48,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:48,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:26:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 426 [2020-10-14 04:26:48,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:49,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:26:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:49,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:49,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:26:49,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-14 04:26:49,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:26:49,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 04:26:49,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:26:49,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:26:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:26:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:26:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 04:26:49,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:26:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-14 04:26:49,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796253362] [2020-10-14 04:26:49,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:26:49,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:26:49,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086216582] [2020-10-14 04:26:49,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:26:49,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:26:49,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:26:49,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:26:49,563 INFO L87 Difference]: Start difference. First operand 64982 states and 77630 transitions. Second operand 5 states. [2020-10-14 04:26:56,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:26:56,600 INFO L93 Difference]: Finished difference Result 129959 states and 155257 transitions. [2020-10-14 04:26:56,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:26:56,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 600 [2020-10-14 04:26:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:26:56,813 INFO L225 Difference]: With dead ends: 129959 [2020-10-14 04:26:56,814 INFO L226 Difference]: Without dead ends: 64987 [2020-10-14 04:26:56,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:26:57,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64987 states. [2020-10-14 04:26:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64987 to 64982. [2020-10-14 04:26:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64982 states. [2020-10-14 04:26:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64982 states to 64982 states and 72843 transitions. [2020-10-14 04:26:58,802 INFO L78 Accepts]: Start accepts. Automaton has 64982 states and 72843 transitions. Word has length 600 [2020-10-14 04:26:58,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:26:58,803 INFO L479 AbstractCegarLoop]: Abstraction has 64982 states and 72843 transitions. [2020-10-14 04:26:58,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:26:58,803 INFO L276 IsEmpty]: Start isEmpty. Operand 64982 states and 72843 transitions. [2020-10-14 04:26:58,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1027 [2020-10-14 04:26:58,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:26:58,881 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:58,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:26:58,881 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:26:58,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:26:58,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1892520094, now seen corresponding path program 1 times [2020-10-14 04:26:58,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:26:58,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189273930] [2020-10-14 04:26:58,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:26:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:26:59,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:59,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:26:59,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:04,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:04,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1044 [2020-10-14 04:27:04,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:27:04,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 04:27:04,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:04,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:04,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:27:04,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 326 [2020-10-14 04:27:04,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 227 [2020-10-14 04:27:04,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:04,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:27:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:04,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:04,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:04,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:27:04,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:27:04,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:04,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:27:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:27:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:04,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:27:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:04,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:04,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:04,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:27:04,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 04:27:04,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:04,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:27:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:27:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:04,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:27:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:04,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:04,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:04,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-14 04:27:04,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:04,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 04:27:04,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:04,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:04,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:27:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-14 04:27:04,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:04,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 04:27:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:04,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:04,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:04,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-14 04:27:04,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:04,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-14 04:27:04,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:04,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:27:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:27:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 225 [2020-10-14 04:27:04,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2020-10-14 04:27:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:04,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:04,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:04,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 445 [2020-10-14 04:27:04,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 04:27:04,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:04,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:27:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 442 [2020-10-14 04:27:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:27:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:05,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:27:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:05,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:05,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:05,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 04:27:05,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:05,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 04:27:05,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:05,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:05,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:27:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:27:05,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 477 proven. 223 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2020-10-14 04:27:05,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189273930] [2020-10-14 04:27:05,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:27:05,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:27:05,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901879312] [2020-10-14 04:27:05,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:27:05,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:27:05,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:27:05,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:27:05,995 INFO L87 Difference]: Start difference. First operand 64982 states and 72843 transitions. Second operand 7 states. [2020-10-14 04:27:20,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:27:20,603 INFO L93 Difference]: Finished difference Result 150494 states and 173226 transitions. [2020-10-14 04:27:20,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:27:20,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1026 [2020-10-14 04:27:20,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:27:20,878 INFO L225 Difference]: With dead ends: 150494 [2020-10-14 04:27:20,879 INFO L226 Difference]: Without dead ends: 85522 [2020-10-14 04:27:20,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:27:21,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85522 states. [2020-10-14 04:27:22,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85522 to 83656. [2020-10-14 04:27:22,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83656 states. [2020-10-14 04:27:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83656 states to 83656 states and 93243 transitions. [2020-10-14 04:27:22,406 INFO L78 Accepts]: Start accepts. Automaton has 83656 states and 93243 transitions. Word has length 1026 [2020-10-14 04:27:22,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:27:22,408 INFO L479 AbstractCegarLoop]: Abstraction has 83656 states and 93243 transitions. [2020-10-14 04:27:22,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:27:22,408 INFO L276 IsEmpty]: Start isEmpty. Operand 83656 states and 93243 transitions. [2020-10-14 04:27:22,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2020-10-14 04:27:22,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:27:22,528 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:22,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:27:22,529 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:27:22,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:27:22,530 INFO L82 PathProgramCache]: Analyzing trace with hash -2072669277, now seen corresponding path program 1 times [2020-10-14 04:27:22,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:27:22,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291496932] [2020-10-14 04:27:22,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:27:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:22,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:23,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:26,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:27,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:27,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:27,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:27,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1127 [2020-10-14 04:27:27,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:27:27,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 04:27:27,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:27,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:27:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 520 [2020-10-14 04:27:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 04:27:27,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:27,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:27:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:27,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:27,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:27,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:27:27,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:27,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:27:27,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:27,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:27,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:27:27,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:27,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:27:27,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:27,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:27:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:27,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:28,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:28,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:27:28,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:28,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 04:27:28,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:28,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:28,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:27:28,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:28,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:27:28,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:27:28,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:27:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:28,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:28,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:28,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-14 04:27:28,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:28,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 04:27:28,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:28,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:28,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:27:28,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:28,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 381 [2020-10-14 04:27:28,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:28,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:27:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:28,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:28,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:28,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 04:27:28,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:28,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 04:27:28,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:28,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:27:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 04:27:28,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:27:28,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 04:27:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:28,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:28,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 04:27:28,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:28,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 04:27:28,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:28,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:27:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:27:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 04:27:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:27:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 627 [2020-10-14 04:27:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:29,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:29,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:29,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 445 [2020-10-14 04:27:29,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:29,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 04:27:29,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:29,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:27:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 442 [2020-10-14 04:27:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:27:29,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:27:29,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:27:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:29,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:29,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:29,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 04:27:29,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:29,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 04:27:29,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:29,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:27:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:27:29,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1117 backedges. 383 proven. 112 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2020-10-14 04:27:29,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291496932] [2020-10-14 04:27:29,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:27:29,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:27:29,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936963838] [2020-10-14 04:27:29,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:27:29,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:27:29,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:27:29,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:27:29,987 INFO L87 Difference]: Start difference. First operand 83656 states and 93243 transitions. Second operand 7 states. [2020-10-14 04:27:40,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:27:40,362 INFO L93 Difference]: Finished difference Result 170849 states and 190611 transitions. [2020-10-14 04:27:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:27:40,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1107 [2020-10-14 04:27:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:27:40,574 INFO L225 Difference]: With dead ends: 170849 [2020-10-14 04:27:40,574 INFO L226 Difference]: Without dead ends: 87907 [2020-10-14 04:27:40,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:27:40,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87907 states. [2020-10-14 04:27:41,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87907 to 82186. [2020-10-14 04:27:41,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82186 states. [2020-10-14 04:27:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82186 states to 82186 states and 90003 transitions. [2020-10-14 04:27:41,835 INFO L78 Accepts]: Start accepts. Automaton has 82186 states and 90003 transitions. Word has length 1107 [2020-10-14 04:27:41,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:27:41,836 INFO L479 AbstractCegarLoop]: Abstraction has 82186 states and 90003 transitions. [2020-10-14 04:27:41,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:27:41,837 INFO L276 IsEmpty]: Start isEmpty. Operand 82186 states and 90003 transitions. [2020-10-14 04:27:41,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2020-10-14 04:27:41,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:27:41,950 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:41,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:27:41,951 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:27:41,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:27:41,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1533147865, now seen corresponding path program 1 times [2020-10-14 04:27:41,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:27:41,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135499830] [2020-10-14 04:27:41,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:27:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:42,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:44,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:47,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:47,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1165 [2020-10-14 04:27:47,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:27:47,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 04:27:47,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:47,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:27:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:27:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 04:27:47,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:47,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:27:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:47,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:47,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:27:47,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:47,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:27:47,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:47,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:27:47,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:47,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:27:47,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:47,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:27:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:47,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:27:47,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:27:47,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:27:47,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:27:47,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 04:27:47,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:27:47,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:27:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:27:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:27:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:27:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:27:47,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:27:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:27:47,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking...