/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/Problem01_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:42:10,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:42:10,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:42:10,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:42:10,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:42:10,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:42:10,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:42:10,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:42:10,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:42:10,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:42:10,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:42:10,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:42:10,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:42:10,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:42:10,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:42:10,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:42:10,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:42:10,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:42:10,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:42:10,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:42:10,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:42:10,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:42:10,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:42:10,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:42:10,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:42:10,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:42:10,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:42:10,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:42:10,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:42:10,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:42:10,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:42:10,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:42:10,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:42:10,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:42:10,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:42:10,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:42:10,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:42:10,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:42:10,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:42:10,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:42:10,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:42:10,549 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 06:42:10,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:42:10,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:42:10,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:42:10,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:42:10,578 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:42:10,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:42:10,578 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:42:10,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:42:10,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:42:10,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:42:10,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:42:10,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:42:10,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:42:10,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:42:10,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:42:10,580 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:42:10,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:42:10,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:42:10,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:42:10,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:42:10,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:42:10,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:42:10,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:42:10,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:42:10,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:42:10,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:42:10,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:42:10,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:42:10,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:42:10,583 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:42:11,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:42:11,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:42:11,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:42:11,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:42:11,122 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:42:11,123 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-09-25 06:42:11,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6c7d1e4f/021cc9db5a98475dbc72176c0ebd7279/FLAG2867ebbe3 [2020-09-25 06:42:11,877 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:42:11,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-09-25 06:42:11,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6c7d1e4f/021cc9db5a98475dbc72176c0ebd7279/FLAG2867ebbe3 [2020-09-25 06:42:12,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6c7d1e4f/021cc9db5a98475dbc72176c0ebd7279 [2020-09-25 06:42:12,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:42:12,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:42:12,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:42:12,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:42:12,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:42:12,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:42:12" (1/1) ... [2020-09-25 06:42:12,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e37eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12, skipping insertion in model container [2020-09-25 06:42:12,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:42:12" (1/1) ... [2020-09-25 06:42:12,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:42:12,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:42:12,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:42:12,663 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:42:12,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:42:12,910 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:42:12,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12 WrapperNode [2020-09-25 06:42:12,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:42:12,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:42:12,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:42:12,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:42:12,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12" (1/1) ... [2020-09-25 06:42:12,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12" (1/1) ... [2020-09-25 06:42:12,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12" (1/1) ... [2020-09-25 06:42:12,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12" (1/1) ... [2020-09-25 06:42:13,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12" (1/1) ... [2020-09-25 06:42:13,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12" (1/1) ... [2020-09-25 06:42:13,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12" (1/1) ... [2020-09-25 06:42:13,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:42:13,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:42:13,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:42:13,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:42:13,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12" (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 06:42:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:42:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:42:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 06:42:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:42:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 06:42:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:42:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:42:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:42:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:42:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:42:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:42:14,465 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:42:14,465 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:42:14,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:42:14 BoogieIcfgContainer [2020-09-25 06:42:14,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:42:14,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:42:14,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:42:14,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:42:14,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:42:12" (1/3) ... [2020-09-25 06:42:14,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f7315f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:42:14, skipping insertion in model container [2020-09-25 06:42:14,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:42:12" (2/3) ... [2020-09-25 06:42:14,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f7315f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:42:14, skipping insertion in model container [2020-09-25 06:42:14,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:42:14" (3/3) ... [2020-09-25 06:42:14,484 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label19.c [2020-09-25 06:42:14,496 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:42:14,508 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:42:14,531 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:42:14,564 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:42:14,564 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:42:14,564 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:42:14,565 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:42:14,565 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:42:14,565 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:42:14,565 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:42:14,565 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:42:14,598 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-25 06:42:14,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 06:42:14,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:42:14,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:42:14,621 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:42:14,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:42:14,627 INFO L82 PathProgramCache]: Analyzing trace with hash 628562263, now seen corresponding path program 1 times [2020-09-25 06:42:14,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:42:14,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766651903] [2020-09-25 06:42:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:42:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:15,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:15,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:15,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:15,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:16,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:16,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:18,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:19,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:19,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-25 06:42:19,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:42:19,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 06:42:19,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:19,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:42:19,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:42:19,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 06:42:19,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-09-25 06:42:20,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:42:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:20,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:20,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:20,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:42:20,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:20,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 06:42:20,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:20,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:20,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:42:20,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:20,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:42:20,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:20,295 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 06:42:20,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766651903] [2020-09-25 06:42:20,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:42:20,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:42:20,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735578518] [2020-09-25 06:42:20,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:42:20,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:42:20,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:42:20,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:42:20,335 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 4 states. [2020-09-25 06:42:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:42:22,825 INFO L93 Difference]: Finished difference Result 1340 states and 1738 transitions. [2020-09-25 06:42:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:42:22,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2020-09-25 06:42:22,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:42:22,854 INFO L225 Difference]: With dead ends: 1340 [2020-09-25 06:42:22,854 INFO L226 Difference]: Without dead ends: 741 [2020-09-25 06:42:22,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:42:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-09-25 06:42:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 664. [2020-09-25 06:42:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2020-09-25 06:42:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 780 transitions. [2020-09-25 06:42:22,970 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 780 transitions. Word has length 114 [2020-09-25 06:42:22,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:42:22,971 INFO L479 AbstractCegarLoop]: Abstraction has 664 states and 780 transitions. [2020-09-25 06:42:22,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:42:22,971 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 780 transitions. [2020-09-25 06:42:22,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 06:42:22,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:42:22,987 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 06:42:22,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:42:22,988 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:42:22,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:42:22,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1104563352, now seen corresponding path program 1 times [2020-09-25 06:42:22,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:42:22,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586110263] [2020-09-25 06:42:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:42:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:23,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:23,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:23,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:23,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:23,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:25,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:25,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-25 06:42:25,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:42:25,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2290 [2020-09-25 06:42:25,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:25,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:42:25,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 06:42:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 06:42:25,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:42:25,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:42:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:25,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:25,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:42:25,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:25,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 06:42:25,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:25,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:25,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:42:25,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:42:25,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:42:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:25,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:25,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:42:25,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:25,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:42:25,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:25,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:25,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:42:25,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:25,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:42:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:42:25,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586110263] [2020-09-25 06:42:25,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:42:25,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:42:25,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250809808] [2020-09-25 06:42:25,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:42:25,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:42:25,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:42:25,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:42:25,769 INFO L87 Difference]: Start difference. First operand 664 states and 780 transitions. Second operand 5 states. [2020-09-25 06:42:27,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:42:27,852 INFO L93 Difference]: Finished difference Result 1654 states and 2024 transitions. [2020-09-25 06:42:27,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:42:27,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-09-25 06:42:27,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:42:27,859 INFO L225 Difference]: With dead ends: 1654 [2020-09-25 06:42:27,859 INFO L226 Difference]: Without dead ends: 1014 [2020-09-25 06:42:27,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:42:27,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2020-09-25 06:42:27,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 950. [2020-09-25 06:42:27,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 950 states. [2020-09-25 06:42:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1142 transitions. [2020-09-25 06:42:27,899 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1142 transitions. Word has length 135 [2020-09-25 06:42:27,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:42:27,900 INFO L479 AbstractCegarLoop]: Abstraction has 950 states and 1142 transitions. [2020-09-25 06:42:27,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:42:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1142 transitions. [2020-09-25 06:42:27,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 06:42:27,905 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:42:27,906 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 06:42:27,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:42:27,906 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:42:27,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:42:27,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1460590075, now seen corresponding path program 1 times [2020-09-25 06:42:27,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:42:27,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100869200] [2020-09-25 06:42:27,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:42:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:27,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:28,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:28,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:29,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:29,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:32,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:32,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:32,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:32,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 06:42:32,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:42:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 06:42:32,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:32,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:42:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 06:42:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 06:42:32,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:33,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:42:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:33,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:33,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:33,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:42:33,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:33,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:42:33,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:33,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:33,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:42:33,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:33,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:42:33,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:33,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:42:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:33,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:33,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:33,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:42:33,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:42:33,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:33,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:42:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:42:33,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:33,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 06:42:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:33,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:33,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:33,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:33,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:42:33,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:42:33,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 06:42:33,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:33,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:42:33,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:42:33,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:42:33,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 06:42:33,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100869200] [2020-09-25 06:42:33,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:42:33,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 06:42:33,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953217426] [2020-09-25 06:42:33,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:42:33,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:42:33,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:42:33,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:42:33,302 INFO L87 Difference]: Start difference. First operand 950 states and 1142 transitions. Second operand 6 states. [2020-09-25 06:42:35,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:42:35,258 INFO L93 Difference]: Finished difference Result 2515 states and 3156 transitions. [2020-09-25 06:42:35,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:42:35,262 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2020-09-25 06:42:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:42:35,284 INFO L225 Difference]: With dead ends: 2515 [2020-09-25 06:42:35,284 INFO L226 Difference]: Without dead ends: 1589 [2020-09-25 06:42:35,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:42:35,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2020-09-25 06:42:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1252. [2020-09-25 06:42:35,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1252 states. [2020-09-25 06:42:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1497 transitions. [2020-09-25 06:42:35,381 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1497 transitions. Word has length 152 [2020-09-25 06:42:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:42:35,382 INFO L479 AbstractCegarLoop]: Abstraction has 1252 states and 1497 transitions. [2020-09-25 06:42:35,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:42:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1497 transitions. [2020-09-25 06:42:35,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 06:42:35,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:42:35,388 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:42:35,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:42:35,389 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:42:35,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:42:35,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1264932115, now seen corresponding path program 1 times [2020-09-25 06:42:35,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:42:35,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237496489] [2020-09-25 06:42:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:42:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:35,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:35,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:35,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:36,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:36,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:36,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:36,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:38,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:38,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:40,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:40,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 06:42:40,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:42:40,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 06:42:40,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:40,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:40,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:42:40,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 06:42:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 06:42:40,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:40,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:42:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:40,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:40,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:40,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:42:40,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:40,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:42:40,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:40,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:42:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:42:40,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:40,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:42:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:40,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:40,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:40,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:42:40,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:42:40,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:40,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:42:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:42:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:40,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 06:42:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:40,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:40,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:40,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:42:40,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:40,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 06:42:40,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:40,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:42:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:40,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:42:40,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:40,781 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 06:42:40,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237496489] [2020-09-25 06:42:40,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:42:40,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:42:40,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66667767] [2020-09-25 06:42:40,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:42:40,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:42:40,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:42:40,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:42:40,787 INFO L87 Difference]: Start difference. First operand 1252 states and 1497 transitions. Second operand 5 states. [2020-09-25 06:42:42,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:42:42,781 INFO L93 Difference]: Finished difference Result 3441 states and 4229 transitions. [2020-09-25 06:42:42,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:42:42,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-09-25 06:42:42,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:42:42,800 INFO L225 Difference]: With dead ends: 3441 [2020-09-25 06:42:42,800 INFO L226 Difference]: Without dead ends: 2213 [2020-09-25 06:42:42,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:42:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2020-09-25 06:42:42,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 1540. [2020-09-25 06:42:42,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1540 states. [2020-09-25 06:42:42,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1915 transitions. [2020-09-25 06:42:42,883 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1915 transitions. Word has length 166 [2020-09-25 06:42:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:42:42,885 INFO L479 AbstractCegarLoop]: Abstraction has 1540 states and 1915 transitions. [2020-09-25 06:42:42,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:42:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1915 transitions. [2020-09-25 06:42:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-25 06:42:42,893 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:42:42,893 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, 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] [2020-09-25 06:42:42,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:42:42,894 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:42:42,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:42:42,894 INFO L82 PathProgramCache]: Analyzing trace with hash -513686346, now seen corresponding path program 1 times [2020-09-25 06:42:42,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:42:42,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112213752] [2020-09-25 06:42:42,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:42:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:43,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:43,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:43,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:43,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:43,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:43,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:44,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:45,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:47,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:47,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 06:42:47,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:42:47,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 06:42:47,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:47,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:47,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:42:47,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 06:42:47,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 06:42:47,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:48,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:42:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:48,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:48,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:48,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:42:48,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:48,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:42:48,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:48,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:42:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:42:48,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:48,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:42:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:48,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:48,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:48,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:42:48,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:48,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 06:42:48,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:48,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:48,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:42:48,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:48,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 06:42:48,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:48,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-25 06:42:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:48,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:48,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:48,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 06:42:48,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:48,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 06:42:48,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:48,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:48,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:42:48,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:42:48,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 06:42:48,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:48,468 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:42:48,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112213752] [2020-09-25 06:42:48,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:42:48,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:42:48,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582894060] [2020-09-25 06:42:48,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:42:48,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:42:48,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:42:48,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:42:48,473 INFO L87 Difference]: Start difference. First operand 1540 states and 1915 transitions. Second operand 7 states. [2020-09-25 06:42:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:42:50,941 INFO L93 Difference]: Finished difference Result 4025 states and 5114 transitions. [2020-09-25 06:42:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:42:50,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-09-25 06:42:50,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:42:50,955 INFO L225 Difference]: With dead ends: 4025 [2020-09-25 06:42:50,956 INFO L226 Difference]: Without dead ends: 2509 [2020-09-25 06:42:50,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:42:50,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2020-09-25 06:42:51,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2130. [2020-09-25 06:42:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2130 states. [2020-09-25 06:42:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2694 transitions. [2020-09-25 06:42:51,055 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2694 transitions. Word has length 222 [2020-09-25 06:42:51,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:42:51,056 INFO L479 AbstractCegarLoop]: Abstraction has 2130 states and 2694 transitions. [2020-09-25 06:42:51,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:42:51,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2694 transitions. [2020-09-25 06:42:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-25 06:42:51,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:42:51,070 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 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] [2020-09-25 06:42:51,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:42:51,071 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:42:51,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:42:51,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1636213025, now seen corresponding path program 1 times [2020-09-25 06:42:51,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:42:51,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725552272] [2020-09-25 06:42:51,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:42:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:51,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:51,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:51,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:51,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:51,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:52,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:56,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:56,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 06:42:56,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:42:56,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:42:56,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:56,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:42:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 06:42:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 06:42:56,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:42:56,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:42:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:56,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:56,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:56,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:42:56,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:56,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:42:56,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:56,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:42:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:42:56,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:42:56,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 06:42:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:56,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:56,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:56,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:42:56,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:42:56,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:56,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:42:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:56,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:42:56,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:56,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 06:42:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:56,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:56,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:56,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:42:56,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:56,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 06:42:56,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:56,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:42:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 06:42:56,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:56,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-25 06:42:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:56,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:56,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:56,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 06:42:56,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 06:42:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:56,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:42:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:42:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 06:42:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 06:42:56,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725552272] [2020-09-25 06:42:56,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:42:56,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:42:56,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154608599] [2020-09-25 06:42:56,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:42:56,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:42:56,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:42:56,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:42:56,550 INFO L87 Difference]: Start difference. First operand 2130 states and 2694 transitions. Second operand 7 states. [2020-09-25 06:42:59,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:42:59,706 INFO L93 Difference]: Finished difference Result 4922 states and 6309 transitions. [2020-09-25 06:42:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:42:59,711 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2020-09-25 06:42:59,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:42:59,711 INFO L225 Difference]: With dead ends: 4922 [2020-09-25 06:42:59,712 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:42:59,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:42:59,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:42:59,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:42:59,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:42:59,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:42:59,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2020-09-25 06:42:59,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:42:59,729 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:42:59,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:42:59,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:42:59,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:42:59,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:42:59,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:43:00,067 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-09-25 06:43:00,482 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2020-09-25 06:43:01,071 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2020-09-25 06:43:01,180 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65