/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/Problem17_label37.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:03:57,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:03:57,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:03:57,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:03:57,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:03:57,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:03:57,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:03:57,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:03:57,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:03:57,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:03:57,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:03:57,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:03:57,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:03:57,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:03:57,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:03:57,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:03:57,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:03:57,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:03:57,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:03:57,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:03:57,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:03:57,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:03:57,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:03:57,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:03:57,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:03:57,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:03:57,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:03:57,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:03:57,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:03:57,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:03:57,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:03:57,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:03:57,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:03:57,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:03:57,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:03:57,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:03:57,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:03:57,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:03:57,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:03:57,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:03:57,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:03:57,807 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 04:03:57,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:03:57,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:03:57,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:03:57,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:03:57,837 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:03:57,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:03:57,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:03:57,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:03:57,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:03:57,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:03:57,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:03:57,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:03:57,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:03:57,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:03:57,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:03:57,839 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:03:57,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:03:57,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:03:57,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:03:57,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:03:57,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:03:57,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:03:57,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:03:57,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:03:57,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:03:57,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:03:57,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:03:57,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:03:57,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:03:57,842 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 04:03:58,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:03:58,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:03:58,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:03:58,270 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:03:58,271 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:03:58,272 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label37.c [2020-10-14 04:03:58,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46495a4f8/595e48665644487b88315224cd8caf7d/FLAGbac0ce43f [2020-10-14 04:03:59,365 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:03:59,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem17_label37.c [2020-10-14 04:03:59,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46495a4f8/595e48665644487b88315224cd8caf7d/FLAGbac0ce43f [2020-10-14 04:03:59,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46495a4f8/595e48665644487b88315224cd8caf7d [2020-10-14 04:03:59,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:03:59,813 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:03:59,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:03:59,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:03:59,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:03:59,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:03:59" (1/1) ... [2020-10-14 04:03:59,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccc0ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:03:59, skipping insertion in model container [2020-10-14 04:03:59,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:03:59" (1/1) ... [2020-10-14 04:03:59,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:03:59,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:04:01,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:04:01,589 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:04:02,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:04:02,150 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:04:02,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02 WrapperNode [2020-10-14 04:04:02,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:04:02,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:04:02,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:04:02,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:04:02,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02" (1/1) ... [2020-10-14 04:04:02,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02" (1/1) ... [2020-10-14 04:04:02,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02" (1/1) ... [2020-10-14 04:04:02,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02" (1/1) ... [2020-10-14 04:04:02,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02" (1/1) ... [2020-10-14 04:04:02,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02" (1/1) ... [2020-10-14 04:04:02,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02" (1/1) ... [2020-10-14 04:04:02,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:04:02,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:04:02,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:04:02,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:04:02,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02" (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 04:04:02,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:04:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:04:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:04:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:04:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:04:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:04:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:04:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:04:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:04:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:04:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:04:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:04:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:04:10,927 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:04:10,928 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:04:10,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:04:10 BoogieIcfgContainer [2020-10-14 04:04:10,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:04:10,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:04:10,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:04:10,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:04:10,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:03:59" (1/3) ... [2020-10-14 04:04:10,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ed0584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:04:10, skipping insertion in model container [2020-10-14 04:04:10,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:04:02" (2/3) ... [2020-10-14 04:04:10,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ed0584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:04:10, skipping insertion in model container [2020-10-14 04:04:10,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:04:10" (3/3) ... [2020-10-14 04:04:10,956 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem17_label37.c [2020-10-14 04:04:10,975 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:04:10,990 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:04:11,014 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:04:11,056 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:04:11,057 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:04:11,057 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:04:11,057 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:04:11,057 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:04:11,057 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:04:11,057 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:04:11,058 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:04:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states. [2020-10-14 04:04:11,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 04:04:11,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:04:11,121 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] [2020-10-14 04:04:11,122 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:04:11,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:04:11,132 INFO L82 PathProgramCache]: Analyzing trace with hash -436715231, now seen corresponding path program 1 times [2020-10-14 04:04:11,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:04:11,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938750361] [2020-10-14 04:04:11,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:04:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:11,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:11,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:11,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 04:04:11,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-10-14 04:04:11,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:11,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:04:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:04:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 04:04:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:04:12,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:04:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:12,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:12,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:12,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:04:12,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:12,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 04:04:12,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:12,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:04:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:12,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:04:12,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:12,059 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 04:04:12,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938750361] [2020-10-14 04:04:12,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:04:12,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:04:12,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646793658] [2020-10-14 04:04:12,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:04:12,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:04:12,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:04:12,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:04:12,101 INFO L87 Difference]: Start difference. First operand 603 states. Second operand 4 states. [2020-10-14 04:04:21,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:04:21,047 INFO L93 Difference]: Finished difference Result 1689 states and 3086 transitions. [2020-10-14 04:04:21,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:04:21,050 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-14 04:04:21,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:04:21,086 INFO L225 Difference]: With dead ends: 1689 [2020-10-14 04:04:21,086 INFO L226 Difference]: Without dead ends: 1009 [2020-10-14 04:04:21,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:04:21,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2020-10-14 04:04:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 991. [2020-10-14 04:04:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-10-14 04:04:21,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1526 transitions. [2020-10-14 04:04:21,239 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1526 transitions. Word has length 24 [2020-10-14 04:04:21,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:04:21,240 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1526 transitions. [2020-10-14 04:04:21,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:04:21,240 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1526 transitions. [2020-10-14 04:04:21,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 04:04:21,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:04:21,245 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:04:21,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:04:21,245 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:04:21,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:04:21,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1842436940, now seen corresponding path program 1 times [2020-10-14 04:04:21,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:04:21,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114785178] [2020-10-14 04:04:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:04:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:21,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:21,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:22,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:22,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:22,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 04:04:22,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:04:22,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1092 [2020-10-14 04:04:22,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:22,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:22,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:04:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 04:04:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:04:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:04:22,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:04:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:22,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:22,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:22,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:04:22,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:22,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:04:22,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:22,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:04:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:04:22,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:22,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:04:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:22,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:22,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:22,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:04:22,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:22,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 04:04:22,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:22,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:04:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 04:04:22,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:22,650 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:04:22,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114785178] [2020-10-14 04:04:22,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:04:22,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:04:22,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540318143] [2020-10-14 04:04:22,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:04:22,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:04:22,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:04:22,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:04:22,655 INFO L87 Difference]: Start difference. First operand 991 states and 1526 transitions. Second operand 5 states. [2020-10-14 04:04:32,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:04:32,589 INFO L93 Difference]: Finished difference Result 2864 states and 4440 transitions. [2020-10-14 04:04:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:04:32,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2020-10-14 04:04:32,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:04:32,602 INFO L225 Difference]: With dead ends: 2864 [2020-10-14 04:04:32,602 INFO L226 Difference]: Without dead ends: 1879 [2020-10-14 04:04:32,606 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 04:04:32,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2020-10-14 04:04:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1875. [2020-10-14 04:04:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1875 states. [2020-10-14 04:04:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2566 transitions. [2020-10-14 04:04:32,672 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2566 transitions. Word has length 95 [2020-10-14 04:04:32,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:04:32,673 INFO L479 AbstractCegarLoop]: Abstraction has 1875 states and 2566 transitions. [2020-10-14 04:04:32,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:04:32,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2566 transitions. [2020-10-14 04:04:32,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 04:04:32,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:04:32,677 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:04:32,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:04:32,678 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:04:32,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:04:32,678 INFO L82 PathProgramCache]: Analyzing trace with hash 786610840, now seen corresponding path program 1 times [2020-10-14 04:04:32,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:04:32,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383226343] [2020-10-14 04:04:32,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:04:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:32,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:32,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:32,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 04:04:32,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:32,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-14 04:04:32,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:32,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:04:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 04:04:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:04:32,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:33,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:04:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:33,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:33,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:33,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:04:33,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:04:33,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:33,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:33,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:04:33,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:04:33,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:33,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:04:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:33,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:33,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:33,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:04:33,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 04:04:33,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:33,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:04:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:33,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 04:04:33,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:04:33,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383226343] [2020-10-14 04:04:33,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:04:33,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:04:33,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326035904] [2020-10-14 04:04:33,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:04:33,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:04:33,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:04:33,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:04:33,293 INFO L87 Difference]: Start difference. First operand 1875 states and 2566 transitions. Second operand 5 states. [2020-10-14 04:04:45,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:04:45,464 INFO L93 Difference]: Finished difference Result 3755 states and 5473 transitions. [2020-10-14 04:04:45,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:04:45,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-14 04:04:45,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:04:45,486 INFO L225 Difference]: With dead ends: 3755 [2020-10-14 04:04:45,486 INFO L226 Difference]: Without dead ends: 2772 [2020-10-14 04:04:45,491 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 04:04:45,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2020-10-14 04:04:45,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 2766. [2020-10-14 04:04:45,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2766 states. [2020-10-14 04:04:45,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3638 transitions. [2020-10-14 04:04:45,593 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3638 transitions. Word has length 98 [2020-10-14 04:04:45,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:04:45,598 INFO L479 AbstractCegarLoop]: Abstraction has 2766 states and 3638 transitions. [2020-10-14 04:04:45,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:04:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3638 transitions. [2020-10-14 04:04:45,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 04:04:45,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:04:45,608 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:04:45,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:04:45,609 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:04:45,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:04:45,609 INFO L82 PathProgramCache]: Analyzing trace with hash -693023428, now seen corresponding path program 1 times [2020-10-14 04:04:45,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:04:45,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492701650] [2020-10-14 04:04:45,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:04:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:45,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:45,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:46,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:46,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 04:04:46,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:04:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1085 [2020-10-14 04:04:46,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:46,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:46,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:04:46,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 04:04:46,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:04:46,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:04:46,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:04:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:46,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:46,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:46,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:04:46,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:46,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:04:46,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:46,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:46,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:04:46,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:46,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:04:46,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:46,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:04:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:46,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:47,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:47,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 04:04:47,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:47,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 04:04:47,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:47,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:04:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 04:04:47,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:47,131 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:04:47,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492701650] [2020-10-14 04:04:47,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:04:47,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:04:47,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455857396] [2020-10-14 04:04:47,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:04:47,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:04:47,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:04:47,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:04:47,141 INFO L87 Difference]: Start difference. First operand 2766 states and 3638 transitions. Second operand 5 states. [2020-10-14 04:04:56,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:04:56,945 INFO L93 Difference]: Finished difference Result 5550 states and 7661 transitions. [2020-10-14 04:04:56,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:04:56,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-14 04:04:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:04:56,970 INFO L225 Difference]: With dead ends: 5550 [2020-10-14 04:04:56,970 INFO L226 Difference]: Without dead ends: 3676 [2020-10-14 04:04:56,976 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 04:04:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2020-10-14 04:04:57,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3663. [2020-10-14 04:04:57,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3663 states. [2020-10-14 04:04:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3663 states to 3663 states and 4829 transitions. [2020-10-14 04:04:57,092 INFO L78 Accepts]: Start accepts. Automaton has 3663 states and 4829 transitions. Word has length 103 [2020-10-14 04:04:57,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:04:57,094 INFO L479 AbstractCegarLoop]: Abstraction has 3663 states and 4829 transitions. [2020-10-14 04:04:57,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:04:57,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3663 states and 4829 transitions. [2020-10-14 04:04:57,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-14 04:04:57,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:04:57,104 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:04:57,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:04:57,105 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:04:57,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:04:57,105 INFO L82 PathProgramCache]: Analyzing trace with hash 802540146, now seen corresponding path program 1 times [2020-10-14 04:04:57,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:04:57,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631582124] [2020-10-14 04:04:57,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:04:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:57,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:57,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:58,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:58,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1105 [2020-10-14 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:58,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:04:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-14 04:04:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:04:58,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:58,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:04:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:58,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:58,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:58,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:04:58,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:58,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:04:58,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:58,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:58,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:04:58,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:58,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:04:58,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:58,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:04:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:58,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:58,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:58,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 04:04:58,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:58,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 04:04:58,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:58,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:04:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 04:04:58,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:04:58,626 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:04:58,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631582124] [2020-10-14 04:04:58,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:04:58,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:04:58,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734597444] [2020-10-14 04:04:58,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:04:58,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:04:58,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:04:58,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:04:58,638 INFO L87 Difference]: Start difference. First operand 3663 states and 4829 transitions. Second operand 5 states. [2020-10-14 04:05:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:05:16,073 INFO L93 Difference]: Finished difference Result 10394 states and 13996 transitions. [2020-10-14 04:05:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:05:16,075 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-10-14 04:05:16,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:05:16,112 INFO L225 Difference]: With dead ends: 10394 [2020-10-14 04:05:16,113 INFO L226 Difference]: Without dead ends: 6737 [2020-10-14 04:05:16,125 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 04:05:16,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6737 states. [2020-10-14 04:05:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6737 to 6733. [2020-10-14 04:05:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6733 states. [2020-10-14 04:05:16,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 8631 transitions. [2020-10-14 04:05:16,334 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 8631 transitions. Word has length 126 [2020-10-14 04:05:16,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:05:16,334 INFO L479 AbstractCegarLoop]: Abstraction has 6733 states and 8631 transitions. [2020-10-14 04:05:16,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:05:16,335 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 8631 transitions. [2020-10-14 04:05:16,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-14 04:05:16,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:05:16,340 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:05:16,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:05:16,340 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:05:16,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:05:16,341 INFO L82 PathProgramCache]: Analyzing trace with hash -78089619, now seen corresponding path program 1 times [2020-10-14 04:05:16,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:05:16,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886831509] [2020-10-14 04:05:16,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:05:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:16,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:16,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:16,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:19,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:21,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:21,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:21,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-14 04:05:21,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:05:21,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 04:05:21,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:21,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:05:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 04:05:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 04:05:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:21,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:05:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:21,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:21,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:21,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:05:21,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:21,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:05:21,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:21,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:21,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:21,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:05:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:21,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:21,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:21,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:05:21,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:21,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 04:05:21,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:21,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:21,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:05:21,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:21,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 04:05:21,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:21,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 04:05:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:21,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:21,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:21,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 04:05:21,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 04:05:21,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:21,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:05:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:05:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 04:05:21,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:05:21,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886831509] [2020-10-14 04:05:21,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:05:21,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:05:21,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83386627] [2020-10-14 04:05:21,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:05:21,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:05:21,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:05:21,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:05:21,962 INFO L87 Difference]: Start difference. First operand 6733 states and 8631 transitions. Second operand 7 states. [2020-10-14 04:05:36,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:05:36,336 INFO L93 Difference]: Finished difference Result 15283 states and 20088 transitions. [2020-10-14 04:05:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:05:36,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2020-10-14 04:05:36,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:05:36,371 INFO L225 Difference]: With dead ends: 15283 [2020-10-14 04:05:36,371 INFO L226 Difference]: Without dead ends: 6777 [2020-10-14 04:05:36,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:05:36,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6777 states. [2020-10-14 04:05:36,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6777 to 6339. [2020-10-14 04:05:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6339 states. [2020-10-14 04:05:36,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6339 states to 6339 states and 7509 transitions. [2020-10-14 04:05:36,563 INFO L78 Accepts]: Start accepts. Automaton has 6339 states and 7509 transitions. Word has length 173 [2020-10-14 04:05:36,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:05:36,564 INFO L479 AbstractCegarLoop]: Abstraction has 6339 states and 7509 transitions. [2020-10-14 04:05:36,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:05:36,564 INFO L276 IsEmpty]: Start isEmpty. Operand 6339 states and 7509 transitions. [2020-10-14 04:05:36,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-14 04:05:36,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:05:36,567 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:05:36,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:05:36,568 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:05:36,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:05:36,568 INFO L82 PathProgramCache]: Analyzing trace with hash -857711399, now seen corresponding path program 1 times [2020-10-14 04:05:36,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:05:36,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801993154] [2020-10-14 04:05:36,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:05:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:36,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:36,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:38,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:38,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:40,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:40,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-14 04:05:40,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:05:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3645 [2020-10-14 04:05:40,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:40,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:05:40,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-14 04:05:40,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:05:40,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:05:40,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:05:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:40,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:40,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:40,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:05:40,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:40,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:05:40,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:40,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:40,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:05:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:40,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:40,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:40,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:05:40,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:40,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 04:05:40,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:40,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:40,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:40,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:40,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:05:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:40,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:40,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:40,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 04:05:40,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:40,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 04:05:40,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:40,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:40,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:05:40,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:40,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 04:05:40,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-14 04:05:40,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801993154] [2020-10-14 04:05:40,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:05:40,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:05:40,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161729165] [2020-10-14 04:05:40,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:05:40,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:05:40,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:05:40,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:05:40,613 INFO L87 Difference]: Start difference. First operand 6339 states and 7509 transitions. Second operand 5 states. [2020-10-14 04:05:49,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:05:49,931 INFO L93 Difference]: Finished difference Result 15735 states and 19001 transitions. [2020-10-14 04:05:49,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:05:49,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2020-10-14 04:05:49,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:05:49,969 INFO L225 Difference]: With dead ends: 15735 [2020-10-14 04:05:49,969 INFO L226 Difference]: Without dead ends: 9401 [2020-10-14 04:05:49,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:05:49,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2020-10-14 04:05:50,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 8531. [2020-10-14 04:05:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8531 states. [2020-10-14 04:05:50,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8531 states to 8531 states and 10066 transitions. [2020-10-14 04:05:50,191 INFO L78 Accepts]: Start accepts. Automaton has 8531 states and 10066 transitions. Word has length 186 [2020-10-14 04:05:50,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:05:50,192 INFO L479 AbstractCegarLoop]: Abstraction has 8531 states and 10066 transitions. [2020-10-14 04:05:50,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:05:50,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8531 states and 10066 transitions. [2020-10-14 04:05:50,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-14 04:05:50,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:05:50,206 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:50,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:05:50,206 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:05:50,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:05:50,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1544080034, now seen corresponding path program 1 times [2020-10-14 04:05:50,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:05:50,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652026403] [2020-10-14 04:05:50,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:05:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:50,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:50,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:52,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:52,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-14 04:05:52,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:05:52,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2141 [2020-10-14 04:05:52,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:52,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:05:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 04:05:52,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 04:05:52,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:52,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:05:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:52,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:52,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:52,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:05:52,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:05:52,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:52,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:52,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:52,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:52,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:52,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:05:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:52,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:52,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:52,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:05:52,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:52,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 04:05:52,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:52,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:05:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:52,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 04:05:52,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:52,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:05:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:52,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:53,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:53,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 04:05:53,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:53,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-14 04:05:53,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:53,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:05:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:05:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 04:05:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:53,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 04:05:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:53,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:53,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:53,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:05:53,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:53,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 04:05:53,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:53,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 04:05:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:53,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 139 proven. 87 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 04:05:53,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652026403] [2020-10-14 04:05:53,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:05:53,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:05:53,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361654789] [2020-10-14 04:05:53,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:05:53,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:05:53,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:05:53,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:05:53,913 INFO L87 Difference]: Start difference. First operand 8531 states and 10066 transitions. Second operand 7 states. [2020-10-14 04:06:09,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:06:09,343 INFO L93 Difference]: Finished difference Result 18518 states and 21940 transitions. [2020-10-14 04:06:09,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:06:09,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 308 [2020-10-14 04:06:09,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:06:09,379 INFO L225 Difference]: With dead ends: 18518 [2020-10-14 04:06:09,379 INFO L226 Difference]: Without dead ends: 9993 [2020-10-14 04:06:09,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:06:09,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9993 states. [2020-10-14 04:06:09,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9993 to 9972. [2020-10-14 04:06:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9972 states. [2020-10-14 04:06:09,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9972 states to 9972 states and 11818 transitions. [2020-10-14 04:06:09,610 INFO L78 Accepts]: Start accepts. Automaton has 9972 states and 11818 transitions. Word has length 308 [2020-10-14 04:06:09,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:06:09,611 INFO L479 AbstractCegarLoop]: Abstraction has 9972 states and 11818 transitions. [2020-10-14 04:06:09,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:06:09,611 INFO L276 IsEmpty]: Start isEmpty. Operand 9972 states and 11818 transitions. [2020-10-14 04:06:09,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-14 04:06:09,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:06:09,620 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:09,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:06:09,621 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:06:09,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:06:09,621 INFO L82 PathProgramCache]: Analyzing trace with hash -2106327609, now seen corresponding path program 1 times [2020-10-14 04:06:09,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:06:09,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094841205] [2020-10-14 04:06:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:06:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:09,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:09,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:10,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:11,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:11,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:11,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:14,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:14,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 348 [2020-10-14 04:06:14,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 04:06:14,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4913 [2020-10-14 04:06:14,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:14,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:06:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 229 [2020-10-14 04:06:14,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:14,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:06:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:14,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:14,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:14,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:06:14,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:06:14,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:14,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:06:14,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:14,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:06:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:14,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:14,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:14,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:06:14,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:14,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 04:06:14,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:14,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 04:06:14,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:14,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:06:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:14,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:15,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:15,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:15,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 04:06:15,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:06:15,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-14 04:06:15,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:15,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-14 04:06:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:06:15,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:15,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-14 04:06:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:15,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:15,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:15,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:06:15,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 04:06:15,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:15,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 04:06:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:15,412 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-14 04:06:15,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094841205] [2020-10-14 04:06:15,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:06:15,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:06:15,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561788308] [2020-10-14 04:06:15,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:06:15,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:06:15,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:06:15,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:06:15,423 INFO L87 Difference]: Start difference. First operand 9972 states and 11818 transitions. Second operand 6 states. [2020-10-14 04:06:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:06:23,597 INFO L93 Difference]: Finished difference Result 19923 states and 23658 transitions. [2020-10-14 04:06:23,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:06:23,604 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 334 [2020-10-14 04:06:23,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:06:23,634 INFO L225 Difference]: With dead ends: 19923 [2020-10-14 04:06:23,635 INFO L226 Difference]: Without dead ends: 9957 [2020-10-14 04:06:23,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:06:23,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9957 states. [2020-10-14 04:06:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9957 to 9948. [2020-10-14 04:06:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9948 states. [2020-10-14 04:06:23,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9948 states to 9948 states and 11766 transitions. [2020-10-14 04:06:23,833 INFO L78 Accepts]: Start accepts. Automaton has 9948 states and 11766 transitions. Word has length 334 [2020-10-14 04:06:23,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:06:23,834 INFO L479 AbstractCegarLoop]: Abstraction has 9948 states and 11766 transitions. [2020-10-14 04:06:23,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:06:23,834 INFO L276 IsEmpty]: Start isEmpty. Operand 9948 states and 11766 transitions. [2020-10-14 04:06:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-10-14 04:06:23,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:06:23,844 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:23,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:06:23,845 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:06:23,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:06:23,846 INFO L82 PathProgramCache]: Analyzing trace with hash 508710634, now seen corresponding path program 1 times [2020-10-14 04:06:23,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:06:23,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484594672] [2020-10-14 04:06:23,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:06:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:23,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:24,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:24,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:26,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:28,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:28,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-14 04:06:28,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:06:28,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 04:06:28,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:28,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:28,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:06:28,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-10-14 04:06:28,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 04:06:28,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:06:29,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:06:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:29,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:29,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:06:29,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:29,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:06:29,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:29,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:29,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:06:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:29,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:29,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:29,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:06:29,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:29,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 04:06:29,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:29,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:29,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:29,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:06:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:29,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:29,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:29,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 04:06:29,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:29,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 04:06:29,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:29,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:29,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 04:06:29,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:29,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 04:06:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:29,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:29,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:29,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:06:29,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:29,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 04:06:29,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:29,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:06:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:06:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 04:06:29,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:06:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 225 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 04:06:29,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484594672] [2020-10-14 04:06:29,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:06:29,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:06:29,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310336235] [2020-10-14 04:06:29,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:06:29,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:06:29,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:06:29,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:06:29,911 INFO L87 Difference]: Start difference. First operand 9948 states and 11766 transitions. Second operand 7 states. [2020-10-14 04:06:53,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:06:53,587 INFO L93 Difference]: Finished difference Result 24519 states and 29745 transitions. [2020-10-14 04:06:53,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:06:53,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 351 [2020-10-14 04:06:53,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:06:53,647 INFO L225 Difference]: With dead ends: 24519 [2020-10-14 04:06:53,647 INFO L226 Difference]: Without dead ends: 13677 [2020-10-14 04:06:53,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:06:53,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13677 states. [2020-10-14 04:06:53,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13677 to 13203. [2020-10-14 04:06:53,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13203 states. [2020-10-14 04:06:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 15751 transitions. [2020-10-14 04:06:53,981 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 15751 transitions. Word has length 351 [2020-10-14 04:06:53,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:06:53,982 INFO L479 AbstractCegarLoop]: Abstraction has 13203 states and 15751 transitions. [2020-10-14 04:06:53,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:06:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 15751 transitions. [2020-10-14 04:06:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-14 04:06:53,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:06:53,998 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:53,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:06:53,999 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:06:53,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:06:53,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1678646255, now seen corresponding path program 1 times [2020-10-14 04:06:54,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:06:54,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072550563] [2020-10-14 04:06:54,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:06:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:54,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:55,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:55,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:57,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:59,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:59,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-14 04:06:59,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:06:59,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 04:06:59,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:59,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:59,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:06:59,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-14 04:06:59,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:06:59,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:59,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:06:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:59,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:59,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:59,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:06:59,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:06:59,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:59,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:59,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:59,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:06:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:59,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:59,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:59,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:06:59,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 04:06:59,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:59,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:59,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:06:59,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:06:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:59,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:59,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:59,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 04:06:59,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:59,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 04:06:59,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:59,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:59,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:59,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:59,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:59,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:06:59,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-10-14 04:06:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:59,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:59,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:59,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:06:59,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 04:06:59,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:59,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:06:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:06:59,678 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-10-14 04:06:59,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072550563] [2020-10-14 04:06:59,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:06:59,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:06:59,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509904706] [2020-10-14 04:06:59,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:06:59,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:06:59,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:06:59,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:06:59,681 INFO L87 Difference]: Start difference. First operand 13203 states and 15751 transitions. Second operand 5 states. [2020-10-14 04:06:59,842 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-10-14 04:07:14,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:07:14,975 INFO L93 Difference]: Finished difference Result 31221 states and 38077 transitions. [2020-10-14 04:07:14,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:07:14,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 364 [2020-10-14 04:07:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:07:15,025 INFO L225 Difference]: With dead ends: 31221 [2020-10-14 04:07:15,026 INFO L226 Difference]: Without dead ends: 18024 [2020-10-14 04:07:15,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:07:15,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18024 states. [2020-10-14 04:07:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18024 to 17125. [2020-10-14 04:07:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17125 states. [2020-10-14 04:07:15,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17125 states to 17125 states and 20782 transitions. [2020-10-14 04:07:15,381 INFO L78 Accepts]: Start accepts. Automaton has 17125 states and 20782 transitions. Word has length 364 [2020-10-14 04:07:15,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:07:15,382 INFO L479 AbstractCegarLoop]: Abstraction has 17125 states and 20782 transitions. [2020-10-14 04:07:15,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:07:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand 17125 states and 20782 transitions. [2020-10-14 04:07:15,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-14 04:07:15,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:07:15,396 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:07:15,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:07:15,396 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:07:15,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:07:15,397 INFO L82 PathProgramCache]: Analyzing trace with hash -826853047, now seen corresponding path program 1 times [2020-10-14 04:07:15,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:07:15,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348534193] [2020-10-14 04:07:15,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:07:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:15,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:16,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:16,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-14 04:07:16,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:16,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1096 [2020-10-14 04:07:16,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:16,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:07:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:07:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 377 [2020-10-14 04:07:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:16,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:07:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:16,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:16,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:16,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:07:16,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:16,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:07:16,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:16,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:16,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:07:16,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:07:16,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:07:16,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:07:16,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:07:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:16,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:17,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-10-14 04:07:17,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-10-14 04:07:17,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:17,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:07:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:07:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 350 [2020-10-14 04:07:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:07:17,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:07:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:17,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:18,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:18,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 04:07:18,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:18,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 04:07:18,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:18,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:07:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:07:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 04:07:18,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:18,598 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:07:18,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348534193] [2020-10-14 04:07:18,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:07:18,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:07:18,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290241954] [2020-10-14 04:07:18,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:07:18,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:07:18,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:07:18,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:07:18,601 INFO L87 Difference]: Start difference. First operand 17125 states and 20782 transitions. Second operand 8 states.