/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 SingleStatement --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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:35:58,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:35:58,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:35:58,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:35:58,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:35:58,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:35:58,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:35:58,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:35:58,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:35:58,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:35:58,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:35:58,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:35:58,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:35:58,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:35:58,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:35:58,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:35:58,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:35:58,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:35:58,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:35:58,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:35:58,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:35:58,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:35:58,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:35:58,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:35:58,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:35:58,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:35:58,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:35:58,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:35:58,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:35:58,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:35:58,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:35:58,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:35:58,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:35:58,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:35:58,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:35:58,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:35:58,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:35:58,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:35:58,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:35:58,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:35:58,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:35:58,693 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 [2020-09-25 13:35:58,717 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:35:58,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:35:58,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:35:58,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:35:58,719 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:35:58,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:35:58,720 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:35:58,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:35:58,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:35:58,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:35:58,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:35:58,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:35:58,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:35:58,721 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:35:58,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:35:58,722 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:35:58,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:35:58,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:35:58,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:35:58,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:35:58,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:35:58,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:35:58,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:35:58,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:35:58,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:35:58,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:35:58,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:35:58,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:35:58,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:35:58,724 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 -> SingleStatement 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=0.4;log-additional-information=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=0.4;log-additional-information=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=0.4;log-additional-information=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=0.4;log-additional-information=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=0.4;log-additional-information=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=0.4;log-additional-information=true; [2020-09-25 13:35:59,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:35:59,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:35:59,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:35:59,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:35:59,206 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:35:59,207 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-09-25 13:35:59,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bde554a86/0c6cfe4e40d1451e817c404cdb1652a8/FLAGb29bdc014 [2020-09-25 13:35:59,962 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:35:59,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-09-25 13:35:59,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bde554a86/0c6cfe4e40d1451e817c404cdb1652a8/FLAGb29bdc014 [2020-09-25 13:36:00,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bde554a86/0c6cfe4e40d1451e817c404cdb1652a8 [2020-09-25 13:36:00,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:36:00,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:36:00,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:36:00,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:36:00,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:36:00,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:36:00" (1/1) ... [2020-09-25 13:36:00,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4164e930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:00, skipping insertion in model container [2020-09-25 13:36:00,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:36:00" (1/1) ... [2020-09-25 13:36:00,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:36:00,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:36:00,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:36:00,825 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:36:01,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:36:01,119 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:36:01,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01 WrapperNode [2020-09-25 13:36:01,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:36:01,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:36:01,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:36:01,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:36:01,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01" (1/1) ... [2020-09-25 13:36:01,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01" (1/1) ... [2020-09-25 13:36:01,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01" (1/1) ... [2020-09-25 13:36:01,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01" (1/1) ... [2020-09-25 13:36:01,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01" (1/1) ... [2020-09-25 13:36:01,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01" (1/1) ... [2020-09-25 13:36:01,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01" (1/1) ... [2020-09-25 13:36:01,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:36:01,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:36:01,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:36:01,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:36:01,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01" (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 [2020-09-25 13:36:01,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:36:01,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:36:01,391 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 13:36:01,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:36:01,391 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 13:36:01,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:36:01,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:36:01,394 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 13:36:01,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:36:01,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:36:01,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:36:03,051 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:36:03,052 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:36:03,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:36:03 BoogieIcfgContainer [2020-09-25 13:36:03,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:36:03,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:36:03,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:36:03,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:36:03,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:36:00" (1/3) ... [2020-09-25 13:36:03,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753632a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:36:03, skipping insertion in model container [2020-09-25 13:36:03,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:36:01" (2/3) ... [2020-09-25 13:36:03,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753632a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:36:03, skipping insertion in model container [2020-09-25 13:36:03,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:36:03" (3/3) ... [2020-09-25 13:36:03,075 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label30.c [2020-09-25 13:36:03,088 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:36:03,100 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:36:03,124 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:36:03,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:36:03,163 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:36:03,163 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:36:03,164 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:36:03,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:36:03,164 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:36:03,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:36:03,164 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:36:03,204 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states. [2020-09-25 13:36:03,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 13:36:03,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:36:03,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:36:03,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:36:03,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:36:03,229 INFO L82 PathProgramCache]: Analyzing trace with hash 2082104676, now seen corresponding path program 1 times [2020-09-25 13:36:03,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:36:03,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654039455] [2020-09-25 13:36:03,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:36:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:03,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:03,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:04,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:04,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:36:04,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:36:04,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-09-25 13:36:04,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:04,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:36:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:36:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 13:36:04,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:36:04,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:36:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:04,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:04,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:04,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:36:04,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:04,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 13:36:04,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:04,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:04,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:36:04,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:36:04,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:36:04,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:04,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:36:04,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654039455] [2020-09-25 13:36:04,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:36:04,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:36:04,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778144712] [2020-09-25 13:36:04,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:36:04,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:36:04,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:36:04,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:36:04,500 INFO L87 Difference]: Start difference. First operand 678 states. Second operand 4 states. [2020-09-25 13:36:07,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:36:07,705 INFO L93 Difference]: Finished difference Result 1663 states and 2205 transitions. [2020-09-25 13:36:07,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:36:07,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-09-25 13:36:07,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:36:07,735 INFO L225 Difference]: With dead ends: 1663 [2020-09-25 13:36:07,735 INFO L226 Difference]: Without dead ends: 911 [2020-09-25 13:36:07,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:36:07,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-09-25 13:36:07,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 891. [2020-09-25 13:36:07,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-25 13:36:07,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1043 transitions. [2020-09-25 13:36:07,869 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1043 transitions. Word has length 62 [2020-09-25 13:36:07,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:36:07,869 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1043 transitions. [2020-09-25 13:36:07,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:36:07,870 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1043 transitions. [2020-09-25 13:36:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:36:07,878 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:36:07,879 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:36:07,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:36:07,880 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:36:07,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:36:07,880 INFO L82 PathProgramCache]: Analyzing trace with hash 589777722, now seen corresponding path program 1 times [2020-09-25 13:36:07,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:36:07,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972868344] [2020-09-25 13:36:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:36:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:07,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:08,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:08,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:09,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:09,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:11,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:12,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:12,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 13:36:12,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:36:12,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:36:12,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:12,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:12,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:36:12,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-09-25 13:36:12,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:36:12,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:13,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:36:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:13,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:13,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:13,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:36:13,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:13,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:36:13,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:13,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:13,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:36:13,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:36:13,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:36:13,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:13,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:36:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:13,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:13,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:13,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 13:36:13,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:13,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 13:36:13,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:13,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:36:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:36:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 13:36:13,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 45 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:36:13,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972868344] [2020-09-25 13:36:13,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:36:13,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 13:36:13,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742841371] [2020-09-25 13:36:13,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:36:13,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:36:13,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:36:13,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:36:13,270 INFO L87 Difference]: Start difference. First operand 891 states and 1043 transitions. Second operand 5 states. [2020-09-25 13:36:15,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:36:15,957 INFO L93 Difference]: Finished difference Result 2084 states and 2514 transitions. [2020-09-25 13:36:15,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:36:15,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 13:36:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:36:15,966 INFO L225 Difference]: With dead ends: 2084 [2020-09-25 13:36:15,966 INFO L226 Difference]: Without dead ends: 1208 [2020-09-25 13:36:15,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:36:15,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-09-25 13:36:16,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1175. [2020-09-25 13:36:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2020-09-25 13:36:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1397 transitions. [2020-09-25 13:36:16,013 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1397 transitions. Word has length 156 [2020-09-25 13:36:16,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:36:16,017 INFO L479 AbstractCegarLoop]: Abstraction has 1175 states and 1397 transitions. [2020-09-25 13:36:16,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:36:16,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1397 transitions. [2020-09-25 13:36:16,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 13:36:16,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:36:16,028 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 13:36:16,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:36:16,029 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:36:16,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:36:16,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1864817980, now seen corresponding path program 1 times [2020-09-25 13:36:16,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:36:16,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333120991] [2020-09-25 13:36:16,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:36:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:16,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:16,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:16,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:16,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:17,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:17,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:21,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:21,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 13:36:21,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:36:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 13:36:21,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:21,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:36:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 13:36:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-25 13:36:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:21,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:36:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:21,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:21,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:21,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:36:21,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:21,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:36:21,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:21,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:21,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:36:21,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:36:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:36:21,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:21,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:36:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:21,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:21,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:21,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 13:36:21,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:21,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 13:36:21,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:21,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:21,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:36:21,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:36:21,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 13:36:21,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:21,702 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:36:21,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333120991] [2020-09-25 13:36:21,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:36:21,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:36:21,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962139566] [2020-09-25 13:36:21,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:36:21,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:36:21,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:36:21,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:36:21,707 INFO L87 Difference]: Start difference. First operand 1175 states and 1397 transitions. Second operand 8 states. [2020-09-25 13:36:26,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:36:26,289 INFO L93 Difference]: Finished difference Result 3376 states and 4304 transitions. [2020-09-25 13:36:26,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:36:26,289 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 185 [2020-09-25 13:36:26,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:36:26,302 INFO L225 Difference]: With dead ends: 3376 [2020-09-25 13:36:26,302 INFO L226 Difference]: Without dead ends: 2216 [2020-09-25 13:36:26,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-25 13:36:26,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2020-09-25 13:36:26,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 1957. [2020-09-25 13:36:26,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2020-09-25 13:36:26,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 2385 transitions. [2020-09-25 13:36:26,374 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 2385 transitions. Word has length 185 [2020-09-25 13:36:26,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:36:26,379 INFO L479 AbstractCegarLoop]: Abstraction has 1957 states and 2385 transitions. [2020-09-25 13:36:26,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:36:26,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 2385 transitions. [2020-09-25 13:36:26,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-09-25 13:36:26,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:36:26,386 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:36:26,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:36:26,386 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:36:26,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:36:26,387 INFO L82 PathProgramCache]: Analyzing trace with hash 495507545, now seen corresponding path program 1 times [2020-09-25 13:36:26,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:36:26,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870657891] [2020-09-25 13:36:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:36:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:26,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:26,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:26,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:26,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:27,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:27,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:27,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:30,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:31,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:31,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 13:36:31,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:36:31,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 13:36:31,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:31,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:36:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:36:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 13:36:31,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:31,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:36:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:31,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:31,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:31,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:36:31,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:31,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:36:31,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:31,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:36:31,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:36:31,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:36:31,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:31,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:36:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:31,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:31,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:31,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 13:36:31,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:31,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 13:36:31,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:31,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:36:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:36:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:36:31,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:32,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:36:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:32,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:32,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:32,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:32,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 13:36:32,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:36:32,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 572 [2020-09-25 13:36:32,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:32,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:36:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:36:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 13:36:32,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 128 proven. 42 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:36:33,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870657891] [2020-09-25 13:36:33,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:36:33,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 13:36:33,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215482133] [2020-09-25 13:36:33,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:36:33,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:36:33,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:36:33,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:36:33,513 INFO L87 Difference]: Start difference. First operand 1957 states and 2385 transitions. Second operand 12 states. [2020-09-25 13:36:40,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:36:40,032 INFO L93 Difference]: Finished difference Result 4251 states and 5231 transitions. [2020-09-25 13:36:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 13:36:40,033 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 268 [2020-09-25 13:36:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:36:40,046 INFO L225 Difference]: With dead ends: 4251 [2020-09-25 13:36:40,046 INFO L226 Difference]: Without dead ends: 2242 [2020-09-25 13:36:40,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2020-09-25 13:36:40,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2020-09-25 13:36:40,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2152. [2020-09-25 13:36:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2152 states. [2020-09-25 13:36:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 2616 transitions. [2020-09-25 13:36:40,134 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 2616 transitions. Word has length 268 [2020-09-25 13:36:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:36:40,135 INFO L479 AbstractCegarLoop]: Abstraction has 2152 states and 2616 transitions. [2020-09-25 13:36:40,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:36:40,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 2616 transitions. [2020-09-25 13:36:40,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-25 13:36:40,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:36:40,141 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:36:40,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:36:40,142 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:36:40,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:36:40,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1420623860, now seen corresponding path program 1 times [2020-09-25 13:36:40,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:36:40,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381729153] [2020-09-25 13:36:40,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:36:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:40,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:40,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:40,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:41,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:45,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:45,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:45,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-25 13:36:45,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:36:45,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:36:45,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:45,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:45,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:36:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:36:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 13:36:45,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:36:45,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:36:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:45,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:45,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:45,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:36:45,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:45,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:36:45,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:45,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:36:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:36:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:36:45,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:45,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:36:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:45,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:45,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:45,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-25 13:36:45,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:45,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 13:36:45,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:45,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:45,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:36:45,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:36:45,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 13:36:45,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:36:45,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 13:36:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:45,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:45,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:45,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 13:36:45,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:45,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 13:36:45,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:45,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:36:45,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 13:36:45,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:36:45,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 92 proven. 64 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 13:36:45,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381729153] [2020-09-25 13:36:45,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:36:45,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 13:36:45,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334837707] [2020-09-25 13:36:45,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:36:45,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:36:45,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:36:45,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:36:45,943 INFO L87 Difference]: Start difference. First operand 2152 states and 2616 transitions. Second operand 7 states.