/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:54:29,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:54:29,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:54:29,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:54:29,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:54:29,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:54:29,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:54:29,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:54:29,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:54:29,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:54:29,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:54:29,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:54:29,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:54:29,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:54:29,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:54:29,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:54:29,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:54:29,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:54:29,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:54:29,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:54:29,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:54:29,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:54:29,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:54:29,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:54:29,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:54:29,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:54:29,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:54:29,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:54:29,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:54:29,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:54:29,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:54:29,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:54:29,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:54:29,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:54:29,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:54:29,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:54:29,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:54:29,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:54:29,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:54:29,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:54:29,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:54:29,833 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 22:54:29,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:54:29,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:54:29,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:54:29,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:54:29,873 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:54:29,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:54:29,874 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:54:29,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:54:29,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:54:29,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:54:29,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:54:29,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:54:29,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:54:29,876 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:54:29,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:54:29,877 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:54:29,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:54:29,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:54:29,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:54:29,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:54:29,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:54:29,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:54:29,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:54:29,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:54:29,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:54:29,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:54:29,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:54:29,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:54:29,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:54:29,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:54:30,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:54:30,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:54:30,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:54:30,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:54:30,226 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:54:30,227 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label57.c [2020-10-14 22:54:30,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b67adf87/66b4fd6574d94c28aeabd9e12fdd2611/FLAGf85b77dfa [2020-10-14 22:54:31,005 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:54:31,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label57.c [2020-10-14 22:54:31,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b67adf87/66b4fd6574d94c28aeabd9e12fdd2611/FLAGf85b77dfa [2020-10-14 22:54:31,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b67adf87/66b4fd6574d94c28aeabd9e12fdd2611 [2020-10-14 22:54:31,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:54:31,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:54:31,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:54:31,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:54:31,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:54:31,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:54:31" (1/1) ... [2020-10-14 22:54:31,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9260ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:31, skipping insertion in model container [2020-10-14 22:54:31,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:54:31" (1/1) ... [2020-10-14 22:54:31,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:54:31,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:54:32,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:54:32,826 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:54:33,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:54:33,317 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:54:33,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33 WrapperNode [2020-10-14 22:54:33,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:54:33,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:54:33,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:54:33,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:54:33,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33" (1/1) ... [2020-10-14 22:54:33,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33" (1/1) ... [2020-10-14 22:54:33,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33" (1/1) ... [2020-10-14 22:54:33,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33" (1/1) ... [2020-10-14 22:54:33,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33" (1/1) ... [2020-10-14 22:54:33,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33" (1/1) ... [2020-10-14 22:54:33,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33" (1/1) ... [2020-10-14 22:54:33,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:54:33,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:54:33,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:54:33,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:54:33,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33" (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 22:54:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:54:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:54:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:54:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:54:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:54:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:54:33,659 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:54:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:54:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:54:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:54:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:54:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:54:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:54:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:54:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:54:39,692 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:54:39,692 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:54:39,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:54:39 BoogieIcfgContainer [2020-10-14 22:54:39,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:54:39,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:54:39,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:54:39,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:54:39,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:54:31" (1/3) ... [2020-10-14 22:54:39,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5536f8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:54:39, skipping insertion in model container [2020-10-14 22:54:39,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:54:33" (2/3) ... [2020-10-14 22:54:39,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5536f8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:54:39, skipping insertion in model container [2020-10-14 22:54:39,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:54:39" (3/3) ... [2020-10-14 22:54:39,719 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label57.c [2020-10-14 22:54:39,732 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:54:39,744 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:54:39,760 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:54:39,794 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:54:39,794 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:54:39,794 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:54:39,794 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:54:39,794 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:54:39,795 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:54:39,795 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:54:39,795 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:54:39,837 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:54:39,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 22:54:39,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:39,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:54:39,846 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:39,853 INFO L82 PathProgramCache]: Analyzing trace with hash 12338169, now seen corresponding path program 1 times [2020-10-14 22:54:39,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:39,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036206974] [2020-10-14 22:54:39,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:40,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:40,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:40,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:54:40,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:40,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-14 22:54:40,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:40,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:54:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:54:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:54:40,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:40,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:40,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:40,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:40,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:40,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:54:40,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:40,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:40,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:40,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:40,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:54:40,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:40,511 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 22:54:40,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036206974] [2020-10-14 22:54:40,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:54:40,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:54:40,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789465582] [2020-10-14 22:54:40,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:54:40,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:40,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:54:40,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:54:40,542 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:54:48,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:48,052 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 22:54:48,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:54:48,054 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-14 22:54:48,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:48,097 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 22:54:48,097 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:54:48,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:54:48,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:54:48,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 22:54:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 22:54:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-14 22:54:48,256 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 14 [2020-10-14 22:54:48,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:48,256 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-14 22:54:48,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:54:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-14 22:54:48,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 22:54:48,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:48,262 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:54:48,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:54:48,263 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:48,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:48,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1564891188, now seen corresponding path program 1 times [2020-10-14 22:54:48,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:48,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625685837] [2020-10-14 22:54:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:48,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:49,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:49,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 22:54:49,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:54:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-14 22:54:49,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:49,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:54:49,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:54:49,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:54:49,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:49,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:49,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:49,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:49,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:49,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:54:49,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:49,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:49,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:54:49,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:49,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:49,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:49,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:49,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:54:49,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:49,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 22:54:49,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:49,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:49,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:49,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:49,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:54:49,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:49,475 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:54:49,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625685837] [2020-10-14 22:54:49,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:54:49,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:54:49,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815279549] [2020-10-14 22:54:49,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:54:49,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:49,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:54:49,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:54:49,479 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 7 states. [2020-10-14 22:55:00,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:00,586 INFO L93 Difference]: Finished difference Result 4352 states and 6838 transitions. [2020-10-14 22:55:00,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:55:00,587 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-14 22:55:00,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:00,605 INFO L225 Difference]: With dead ends: 4352 [2020-10-14 22:55:00,606 INFO L226 Difference]: Without dead ends: 2933 [2020-10-14 22:55:00,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:55:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2020-10-14 22:55:00,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2878. [2020-10-14 22:55:00,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2878 states. [2020-10-14 22:55:00,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 3876 transitions. [2020-10-14 22:55:00,705 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 3876 transitions. Word has length 84 [2020-10-14 22:55:00,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:00,706 INFO L479 AbstractCegarLoop]: Abstraction has 2878 states and 3876 transitions. [2020-10-14 22:55:00,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:00,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 3876 transitions. [2020-10-14 22:55:00,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 22:55:00,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:00,710 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:55:00,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:55:00,711 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:00,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:00,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1384897716, now seen corresponding path program 1 times [2020-10-14 22:55:00,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:00,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111197286] [2020-10-14 22:55:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:00,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:00,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:01,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:01,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 22:55:01,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:55:01,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-10-14 22:55:01,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:01,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:55:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:55:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:55:01,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:01,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:01,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:01,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:01,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:01,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:55:01,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:01,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:55:01,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:01,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:01,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:01,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:01,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:55:01,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:01,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 22:55:01,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:01,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:01,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:55:01,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:01,870 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:55:01,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111197286] [2020-10-14 22:55:01,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:55:01,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:55:01,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727711292] [2020-10-14 22:55:01,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:01,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:01,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:01,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:01,874 INFO L87 Difference]: Start difference. First operand 2878 states and 3876 transitions. Second operand 7 states. [2020-10-14 22:55:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:15,152 INFO L93 Difference]: Finished difference Result 7356 states and 9832 transitions. [2020-10-14 22:55:15,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:55:15,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-14 22:55:15,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:15,188 INFO L225 Difference]: With dead ends: 7356 [2020-10-14 22:55:15,189 INFO L226 Difference]: Without dead ends: 4484 [2020-10-14 22:55:15,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:55:15,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2020-10-14 22:55:15,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4337. [2020-10-14 22:55:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4337 states. [2020-10-14 22:55:15,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4337 states to 4337 states and 5426 transitions. [2020-10-14 22:55:15,359 INFO L78 Accepts]: Start accepts. Automaton has 4337 states and 5426 transitions. Word has length 104 [2020-10-14 22:55:15,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:15,359 INFO L479 AbstractCegarLoop]: Abstraction has 4337 states and 5426 transitions. [2020-10-14 22:55:15,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 4337 states and 5426 transitions. [2020-10-14 22:55:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-14 22:55:15,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:15,362 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:55:15,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:55:15,362 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:15,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:15,363 INFO L82 PathProgramCache]: Analyzing trace with hash -689117923, now seen corresponding path program 1 times [2020-10-14 22:55:15,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:15,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19415674] [2020-10-14 22:55:15,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:15,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:15,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:16,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:16,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 22:55:16,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:55:16,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1168 [2020-10-14 22:55:16,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:16,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:16,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:55:16,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:55:16,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:55:16,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:16,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:16,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:16,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:16,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:16,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:16,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:55:16,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:16,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:16,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:16,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:16,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:55:16,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:16,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:16,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:17,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:17,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:55:17,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:17,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 22:55:17,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:17,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:55:17,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:55:17,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19415674] [2020-10-14 22:55:17,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:55:17,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:55:17,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733816591] [2020-10-14 22:55:17,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:55:17,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:17,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:55:17,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:55:17,213 INFO L87 Difference]: Start difference. First operand 4337 states and 5426 transitions. Second operand 8 states. [2020-10-14 22:55:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:29,979 INFO L93 Difference]: Finished difference Result 10907 states and 14208 transitions. [2020-10-14 22:55:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:55:29,981 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2020-10-14 22:55:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:30,018 INFO L225 Difference]: With dead ends: 10907 [2020-10-14 22:55:30,018 INFO L226 Difference]: Without dead ends: 7996 [2020-10-14 22:55:30,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:55:30,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7996 states. [2020-10-14 22:55:30,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7996 to 7220. [2020-10-14 22:55:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7220 states. [2020-10-14 22:55:30,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7220 states to 7220 states and 8613 transitions. [2020-10-14 22:55:30,212 INFO L78 Accepts]: Start accepts. Automaton has 7220 states and 8613 transitions. Word has length 111 [2020-10-14 22:55:30,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:30,216 INFO L479 AbstractCegarLoop]: Abstraction has 7220 states and 8613 transitions. [2020-10-14 22:55:30,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:55:30,216 INFO L276 IsEmpty]: Start isEmpty. Operand 7220 states and 8613 transitions. [2020-10-14 22:55:30,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-14 22:55:30,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:30,230 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:30,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:55:30,231 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:30,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:30,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1478133482, now seen corresponding path program 1 times [2020-10-14 22:55:30,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:30,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529906854] [2020-10-14 22:55:30,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:30,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:30,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:30,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:32,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:32,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-14 22:55:32,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:55:32,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1733 [2020-10-14 22:55:32,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:32,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:55:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 22:55:32,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:32,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:32,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:32,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:32,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:32,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:32,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:55:32,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:32,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:32,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:32,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:32,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:32,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:32,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:55:32,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 22:55:32,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:32,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:55:32,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 22:55:32,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:55:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:32,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:32,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:32,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:55:32,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:32,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 22:55:32,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:32,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:55:32,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529906854] [2020-10-14 22:55:32,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:32,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:55:32,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849242453] [2020-10-14 22:55:32,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:32,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:32,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:32,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:32,896 INFO L87 Difference]: Start difference. First operand 7220 states and 8613 transitions. Second operand 7 states. [2020-10-14 22:55:47,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:47,842 INFO L93 Difference]: Finished difference Result 16051 states and 19958 transitions. [2020-10-14 22:55:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:55:47,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 297 [2020-10-14 22:55:47,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:47,877 INFO L225 Difference]: With dead ends: 16051 [2020-10-14 22:55:47,877 INFO L226 Difference]: Without dead ends: 7359 [2020-10-14 22:55:47,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:55:47,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7359 states. [2020-10-14 22:55:48,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7359 to 7286. [2020-10-14 22:55:48,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7286 states. [2020-10-14 22:55:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7286 states to 7286 states and 8058 transitions. [2020-10-14 22:55:48,081 INFO L78 Accepts]: Start accepts. Automaton has 7286 states and 8058 transitions. Word has length 297 [2020-10-14 22:55:48,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:48,082 INFO L479 AbstractCegarLoop]: Abstraction has 7286 states and 8058 transitions. [2020-10-14 22:55:48,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7286 states and 8058 transitions. [2020-10-14 22:55:48,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-14 22:55:48,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:48,094 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:55:48,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:55:48,095 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:48,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1176008666, now seen corresponding path program 1 times [2020-10-14 22:55:48,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:48,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009872307] [2020-10-14 22:55:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:48,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:48,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:48,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:53,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:53,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 425 [2020-10-14 22:55:53,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:55:53,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 22:55:53,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:53,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:53,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:55:53,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:55:53,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:55:53,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:53,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:53,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:53,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:53,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:53,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:53,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:55:53,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:53,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:53,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:53,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:53,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:55:53,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:53,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:53,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:54,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:54,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:55:54,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:54,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 618 [2020-10-14 22:55:54,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:54,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:55:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:55:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:54,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:55:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:54,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:54,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:54,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:55:54,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:54,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:55:54,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:54,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:55:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:55:54,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:54,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:55:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:54,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:54,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:54,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:55:54,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:54,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:55:54,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:54,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 22:55:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 14 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:55:54,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009872307] [2020-10-14 22:55:54,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:54,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:55:54,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002548847] [2020-10-14 22:55:54,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:54,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:54,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:54,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:54,778 INFO L87 Difference]: Start difference. First operand 7286 states and 8058 transitions. Second operand 7 states. [2020-10-14 22:56:02,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:02,613 INFO L93 Difference]: Finished difference Result 19875 states and 22492 transitions. [2020-10-14 22:56:02,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:56:02,614 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 411 [2020-10-14 22:56:02,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:02,658 INFO L225 Difference]: With dead ends: 19875 [2020-10-14 22:56:02,658 INFO L226 Difference]: Without dead ends: 13297 [2020-10-14 22:56:02,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:56:02,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13297 states. [2020-10-14 22:56:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13297 to 13195. [2020-10-14 22:56:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13195 states. [2020-10-14 22:56:02,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13195 states to 13195 states and 14485 transitions. [2020-10-14 22:56:02,914 INFO L78 Accepts]: Start accepts. Automaton has 13195 states and 14485 transitions. Word has length 411 [2020-10-14 22:56:02,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:02,915 INFO L479 AbstractCegarLoop]: Abstraction has 13195 states and 14485 transitions. [2020-10-14 22:56:02,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:02,915 INFO L276 IsEmpty]: Start isEmpty. Operand 13195 states and 14485 transitions. [2020-10-14 22:56:03,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2020-10-14 22:56:03,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:03,008 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:56:03,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:56:03,009 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:03,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:03,010 INFO L82 PathProgramCache]: Analyzing trace with hash 992168034, now seen corresponding path program 1 times [2020-10-14 22:56:03,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:03,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418426471] [2020-10-14 22:56:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:03,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:06,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:06,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 958 [2020-10-14 22:56:06,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:56:06,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3546 [2020-10-14 22:56:06,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:06,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:56:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:56:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:06,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:06,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:06,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:06,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:06,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:06,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:56:06,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:06,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:06,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:06,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:07,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:07,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:07,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:07,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:56:07,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:07,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 22:56:07,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:07,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:07,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:56:07,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:07,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:07,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:07,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:56:07,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:07,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:56:07,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:07,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:07,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:07,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:07,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:07,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:07,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:56:07,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:56:07,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:07,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:07,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:07,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:56:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:07,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:08,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:08,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:56:08,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:08,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-14 22:56:08,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:08,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:08,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:56:08,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:08,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:08,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:08,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:08,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:56:08,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:08,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:56:08,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:08,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:08,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:08,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:08,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:56:08,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:08,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:56:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:08,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:08,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:08,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:56:08,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:08,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:56:08,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:08,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:08,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:08,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:08,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:56:08,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 203 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 22:56:09,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418426471] [2020-10-14 22:56:09,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:09,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:09,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790137726] [2020-10-14 22:56:09,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:09,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:09,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:09,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:09,241 INFO L87 Difference]: Start difference. First operand 13195 states and 14485 transitions. Second operand 7 states. [2020-10-14 22:56:16,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:16,766 INFO L93 Difference]: Finished difference Result 30955 states and 35059 transitions. [2020-10-14 22:56:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:56:16,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 938 [2020-10-14 22:56:16,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:16,829 INFO L225 Difference]: With dead ends: 30955 [2020-10-14 22:56:16,829 INFO L226 Difference]: Without dead ends: 19178 [2020-10-14 22:56:16,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:56:16,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19178 states. [2020-10-14 22:56:17,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19178 to 19053. [2020-10-14 22:56:17,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19053 states. [2020-10-14 22:56:17,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19053 states to 19053 states and 21248 transitions. [2020-10-14 22:56:17,226 INFO L78 Accepts]: Start accepts. Automaton has 19053 states and 21248 transitions. Word has length 938 [2020-10-14 22:56:17,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:17,228 INFO L479 AbstractCegarLoop]: Abstraction has 19053 states and 21248 transitions. [2020-10-14 22:56:17,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:17,228 INFO L276 IsEmpty]: Start isEmpty. Operand 19053 states and 21248 transitions. [2020-10-14 22:56:17,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1036 [2020-10-14 22:56:17,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:17,248 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:56:17,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:56:17,249 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:17,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:17,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1429044004, now seen corresponding path program 1 times [2020-10-14 22:56:17,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:17,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822625030] [2020-10-14 22:56:17,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:17,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:18,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:18,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:22,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:22,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1057 [2020-10-14 22:56:22,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:56:22,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5129 [2020-10-14 22:56:22,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:22,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:22,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:22,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-14 22:56:22,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:56:22,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:22,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:22,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:22,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:22,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:22,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:22,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:56:22,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:22,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:22,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:22,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:22,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:23,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:56:23,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 22:56:23,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:23,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:23,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:23,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:23,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:56:23,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:56:23,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:23,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:23,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:23,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:56:23,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:23,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:56:23,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:23,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:23,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:23,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:23,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:23,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:23,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:56:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:23,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:56:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:23,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:56:23,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:23,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:23,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:23,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:23,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:56:23,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:23,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:56:23,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:23,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:23,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:23,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:56:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:23,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:23,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:56:23,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:23,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:56:23,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:23,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:56:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:23,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:56:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:23,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:23,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:56:23,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:23,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:56:23,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:23,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:23,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:23,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:23,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:56:23,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 327 proven. 2 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-14 22:56:25,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822625030] [2020-10-14 22:56:25,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:25,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:25,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575498218] [2020-10-14 22:56:25,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:25,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:25,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:25,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:25,341 INFO L87 Difference]: Start difference. First operand 19053 states and 21248 transitions. Second operand 7 states. [2020-10-14 22:56:33,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:33,970 INFO L93 Difference]: Finished difference Result 39016 states and 43899 transitions. [2020-10-14 22:56:33,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:56:33,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1035 [2020-10-14 22:56:33,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:34,042 INFO L225 Difference]: With dead ends: 39016 [2020-10-14 22:56:34,042 INFO L226 Difference]: Without dead ends: 21381 [2020-10-14 22:56:34,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:56:34,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21381 states. [2020-10-14 22:56:34,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21381 to 21214. [2020-10-14 22:56:34,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21214 states. [2020-10-14 22:56:34,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21214 states to 21214 states and 23515 transitions. [2020-10-14 22:56:34,438 INFO L78 Accepts]: Start accepts. Automaton has 21214 states and 23515 transitions. Word has length 1035 [2020-10-14 22:56:34,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:34,442 INFO L479 AbstractCegarLoop]: Abstraction has 21214 states and 23515 transitions. [2020-10-14 22:56:34,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:34,442 INFO L276 IsEmpty]: Start isEmpty. Operand 21214 states and 23515 transitions. [2020-10-14 22:56:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1103 [2020-10-14 22:56:34,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:34,462 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:56:34,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:56:34,462 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:34,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:34,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1372676943, now seen corresponding path program 1 times [2020-10-14 22:56:34,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:34,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925570444] [2020-10-14 22:56:34,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:34,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:35,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:35,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1124 [2020-10-14 22:56:35,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:35,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1077 [2020-10-14 22:56:35,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:35,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 22:56:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 22:56:35,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:35,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:35,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:35,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:35,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:35,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:35,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:35,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:35,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:35,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:35,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:35,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:35,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:36,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:36,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:56:36,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-14 22:56:36,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:36,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:36,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:36,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:36,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:36,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:36,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:36,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:36,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:36,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:56:36,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:56:36,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:36,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:36,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:36,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:36,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:36,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:36,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:36,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:36,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:36,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:56:36,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:56:36,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:36,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:36,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:36,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:56:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:36,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:56:36,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:56:36,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:36,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:36,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:36,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:36,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:36,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:56:36,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:36,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:56:36,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:36,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:36,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:36,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:56:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:36,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:36,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:36,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:56:36,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:56:36,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:36,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:36,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:36,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:56:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:36,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:36,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:36,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:56:36,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:36,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:56:36,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:36,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:56:36,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:37,395 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-14 22:56:37,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925570444] [2020-10-14 22:56:37,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:37,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:56:37,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521421963] [2020-10-14 22:56:37,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:56:37,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:37,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:56:37,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:56:37,398 INFO L87 Difference]: Start difference. First operand 21214 states and 23515 transitions. Second operand 5 states. [2020-10-14 22:56:47,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:47,228 INFO L93 Difference]: Finished difference Result 45277 states and 51219 transitions. [2020-10-14 22:56:47,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:56:47,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1102 [2020-10-14 22:56:47,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:47,313 INFO L225 Difference]: With dead ends: 45277 [2020-10-14 22:56:47,314 INFO L226 Difference]: Without dead ends: 25481 [2020-10-14 22:56:47,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 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 22:56:47,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25481 states. [2020-10-14 22:56:47,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25481 to 25459. [2020-10-14 22:56:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25459 states. [2020-10-14 22:56:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25459 states to 25459 states and 28087 transitions. [2020-10-14 22:56:47,740 INFO L78 Accepts]: Start accepts. Automaton has 25459 states and 28087 transitions. Word has length 1102 [2020-10-14 22:56:47,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:47,742 INFO L479 AbstractCegarLoop]: Abstraction has 25459 states and 28087 transitions. [2020-10-14 22:56:47,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:56:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 25459 states and 28087 transitions. [2020-10-14 22:56:47,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1130 [2020-10-14 22:56:47,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:47,766 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:56:47,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:56:47,767 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:47,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:47,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1540002824, now seen corresponding path program 1 times [2020-10-14 22:56:47,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:47,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321247365] [2020-10-14 22:56:47,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:48,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:48,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:50,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:50,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1151 [2020-10-14 22:56:53,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:56:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-14 22:56:53,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:53,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-14 22:56:53,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 22:56:53,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:53,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:53,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:53,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:53,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:53,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:53,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:53,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:53,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:53,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:53,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:56:53,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:53,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:56:53,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:53,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:53,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:53,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:53,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:53,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:56:53,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:53,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:56:53,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:53,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:53,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:53,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:56:53,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:53,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:56:53,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:53,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:53,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:56:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:53,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:56:53,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:53,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:56:53,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:53,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:53,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:56:53,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:53,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:56:53,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:53,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:53,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:53,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:53,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:56:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:53,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:56:53,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:53,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:56:53,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:56:53,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:53,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-14 22:56:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:53,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 22:56:53,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:53,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 22:56:53,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 22:56:53,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 469 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2020-10-14 22:56:54,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321247365] [2020-10-14 22:56:54,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:54,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:54,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948747532] [2020-10-14 22:56:54,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:54,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:54,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:54,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:54,658 INFO L87 Difference]: Start difference. First operand 25459 states and 28087 transitions. Second operand 7 states. [2020-10-14 22:57:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:57:05,436 INFO L93 Difference]: Finished difference Result 59528 states and 67356 transitions. [2020-10-14 22:57:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:57:05,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1129 [2020-10-14 22:57:05,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:57:05,539 INFO L225 Difference]: With dead ends: 59528 [2020-10-14 22:57:05,539 INFO L226 Difference]: Without dead ends: 35487 [2020-10-14 22:57:05,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:57:05,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35487 states. [2020-10-14 22:57:06,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35487 to 35418. [2020-10-14 22:57:06,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35418 states. [2020-10-14 22:57:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35418 states to 35418 states and 39494 transitions. [2020-10-14 22:57:06,158 INFO L78 Accepts]: Start accepts. Automaton has 35418 states and 39494 transitions. Word has length 1129 [2020-10-14 22:57:06,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:57:06,160 INFO L479 AbstractCegarLoop]: Abstraction has 35418 states and 39494 transitions. [2020-10-14 22:57:06,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:57:06,160 INFO L276 IsEmpty]: Start isEmpty. Operand 35418 states and 39494 transitions. [2020-10-14 22:57:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1165 [2020-10-14 22:57:06,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:57:06,183 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:57:06,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:57:06,184 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:57:06,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:57:06,185 INFO L82 PathProgramCache]: Analyzing trace with hash 705185100, now seen corresponding path program 1 times [2020-10-14 22:57:06,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:57:06,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79308565] [2020-10-14 22:57:06,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:57:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:06,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:06,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:07,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:07,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:11,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:11,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1188 [2020-10-14 22:57:11,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:57:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-14 22:57:11,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:11,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:57:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:57:11,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:11,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:11,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:11,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:57:11,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:11,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:11,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:11,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:11,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:11,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:57:11,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:11,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:57:11,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:11,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:11,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:11,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:11,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:11,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:11,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:57:11,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:11,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:57:11,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:11,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:11,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:11,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:57:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:11,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:11,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:11,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:57:11,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:11,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:57:11,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:11,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:11,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:11,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:11,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:11,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:12,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:57:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:12,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:12,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:12,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:57:12,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:12,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 22:57:12,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:12,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:57:12,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:12,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:12,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:12,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:12,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:57:12,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:12,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:57:12,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:12,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:12,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:12,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:12,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:57:12,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:12,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:57:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:12,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:12,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:12,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:57:12,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:12,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:57:12,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:12,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:12,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:12,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:57:12,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:57:12,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:12,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-14 22:57:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:12,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:12,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:12,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:57:12,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:57:12,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:12,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 22:57:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:12,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:12,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:57:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:12,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:12,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:12,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:57:12,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:12,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:57:12,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:12,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:57:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:12,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 297 proven. 190 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2020-10-14 22:57:14,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79308565] [2020-10-14 22:57:14,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:57:14,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:57:14,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924998708] [2020-10-14 22:57:14,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:57:14,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:57:14,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:57:14,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:57:14,056 INFO L87 Difference]: Start difference. First operand 35418 states and 39494 transitions. Second operand 7 states. [2020-10-14 22:57:29,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:57:29,621 INFO L93 Difference]: Finished difference Result 76656 states and 86181 transitions. [2020-10-14 22:57:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:57:29,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1164 [2020-10-14 22:57:29,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:57:29,736 INFO L225 Difference]: With dead ends: 76656 [2020-10-14 22:57:29,737 INFO L226 Difference]: Without dead ends: 42656 [2020-10-14 22:57:29,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 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 22:57:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42656 states. [2020-10-14 22:57:30,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42656 to 42538. [2020-10-14 22:57:30,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42538 states. [2020-10-14 22:57:30,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42538 states to 42538 states and 47245 transitions. [2020-10-14 22:57:30,565 INFO L78 Accepts]: Start accepts. Automaton has 42538 states and 47245 transitions. Word has length 1164 [2020-10-14 22:57:30,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:57:30,567 INFO L479 AbstractCegarLoop]: Abstraction has 42538 states and 47245 transitions. [2020-10-14 22:57:30,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:57:30,567 INFO L276 IsEmpty]: Start isEmpty. Operand 42538 states and 47245 transitions. [2020-10-14 22:57:30,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1199 [2020-10-14 22:57:30,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:57:30,606 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:57:30,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:57:30,607 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:57:30,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:57:30,607 INFO L82 PathProgramCache]: Analyzing trace with hash 2016292886, now seen corresponding path program 1 times [2020-10-14 22:57:30,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:57:30,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444325059] [2020-10-14 22:57:30,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:57:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:31,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:31,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:31,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:33,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:35,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:35,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1222 [2020-10-14 22:57:35,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:57:35,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 22:57:35,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:35,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1069 [2020-10-14 22:57:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 22:57:35,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:36,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:36,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:36,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:36,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:36,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:57:36,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:36,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:36,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:36,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:57:36,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:36,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:36,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:36,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:57:36,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:57:36,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:36,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:36,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:36,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:36,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:36,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:36,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:57:36,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:57:36,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:36,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:36,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:36,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:57:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:36,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:36,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:36,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:57:36,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:36,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:57:36,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:36,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:36,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:36,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:36,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:36,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:36,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:57:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:36,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:36,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:36,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:57:36,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:57:36,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:36,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:36,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:57:36,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:36,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:36,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:36,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:57:36,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:36,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:57:36,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:36,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:36,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:36,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:36,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:36,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:36,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:57:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:36,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:36,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:36,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:57:36,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:36,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:57:36,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:36,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:36,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:36,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:36,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:36,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:36,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-14 22:57:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:36,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:36,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:36,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:57:36,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:57:36,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:36,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:57:36,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:36,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1055 [2020-10-14 22:57:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:36,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:37,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:37,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 22:57:37,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:37,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:57:37,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:37,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:57:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 22:57:37,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:38,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 520 proven. 2 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2020-10-14 22:57:38,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444325059] [2020-10-14 22:57:38,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:57:38,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:57:38,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207415205] [2020-10-14 22:57:38,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:57:38,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:57:38,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:57:38,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:57:38,129 INFO L87 Difference]: Start difference. First operand 42538 states and 47245 transitions. Second operand 7 states. [2020-10-14 22:57:51,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:57:51,914 INFO L93 Difference]: Finished difference Result 87956 states and 98266 transitions. [2020-10-14 22:57:51,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:57:51,915 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1198 [2020-10-14 22:57:51,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:57:52,008 INFO L225 Difference]: With dead ends: 87956 [2020-10-14 22:57:52,008 INFO L226 Difference]: Without dead ends: 46118 [2020-10-14 22:57:52,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:57:52,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46118 states. [2020-10-14 22:57:52,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46118 to 45351. [2020-10-14 22:57:52,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45351 states. [2020-10-14 22:57:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45351 states to 45351 states and 50327 transitions. [2020-10-14 22:57:52,751 INFO L78 Accepts]: Start accepts. Automaton has 45351 states and 50327 transitions. Word has length 1198 [2020-10-14 22:57:52,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:57:52,752 INFO L479 AbstractCegarLoop]: Abstraction has 45351 states and 50327 transitions. [2020-10-14 22:57:52,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:57:52,752 INFO L276 IsEmpty]: Start isEmpty. Operand 45351 states and 50327 transitions. [2020-10-14 22:57:52,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1257 [2020-10-14 22:57:52,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:57:52,780 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:57:52,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:57:52,780 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:57:52,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:57:52,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1655162373, now seen corresponding path program 1 times [2020-10-14 22:57:52,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:57:52,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636194098] [2020-10-14 22:57:52,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:57:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:53,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:53,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:55,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:56,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:57,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:58,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:58,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1282 [2020-10-14 22:57:58,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:57:58,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 22:57:58,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:58,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:58,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:58,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:57:58,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 22:57:58,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:58,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:58,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:58,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:58,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:58,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:57:58,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:58,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:58,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:58,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:58,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:58,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:58,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:57:58,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:58,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:57:58,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:58,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:58,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:58,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:58,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:58,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:58,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:57:58,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:58,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:57:58,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:58,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:58,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:58,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:58,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:58,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:57:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:58,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:58,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:58,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:57:58,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:58,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:57:58,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:58,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:58,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:58,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:57:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:58,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:59,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:59,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:57:59,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:59,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1243 [2020-10-14 22:57:59,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:59,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:59,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:59,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:59,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:57:59,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:59,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:00,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:00,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:00,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:58:00,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:00,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:58:00,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:00,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:00,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:58:00,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:58:00,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:58:00,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:00,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:58:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:00,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:00,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:00,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:58:00,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:00,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:58:00,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:00,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:58:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:58:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:58:00,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:00,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-14 22:58:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:00,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:00,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:00,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:58:00,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:00,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:58:00,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:00,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:58:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:00,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:00,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1056 [2020-10-14 22:58:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:00,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:00,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:00,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:58:00,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:00,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:58:00,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:00,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 22:58:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:00,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:00,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1162 [2020-10-14 22:58:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:58:00,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:58:00,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:58:00,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:58:00,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:58:00,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:58:00,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:58:00,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:58:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:58:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:58:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:58:00,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:58:00,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1663 backedges. 352 proven. 259 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2020-10-14 22:58:00,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636194098] [2020-10-14 22:58:00,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:58:00,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:58:00,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741428063] [2020-10-14 22:58:00,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:58:00,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:58:00,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:58:00,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:58:00,988 INFO L87 Difference]: Start difference. First operand 45351 states and 50327 transitions. Second operand 7 states.