/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:30:01,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:30:01,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:30:01,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:30:01,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:30:01,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:30:01,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:30:01,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:30:01,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:30:01,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:30:01,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:30:01,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:30:01,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:30:01,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:30:01,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:30:01,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:30:01,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:30:01,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:30:01,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:30:01,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:30:01,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:30:01,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:30:01,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:30:01,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:30:01,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:30:01,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:30:01,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:30:01,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:30:01,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:30:01,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:30:01,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:30:01,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:30:01,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:30:01,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:30:01,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:30:01,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:30:01,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:30:01,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:30:01,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:30:01,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:30:01,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:30:01,421 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 [2020-09-24 18:30:01,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:30:01,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:30:01,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:30:01,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:30:01,477 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:30:01,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:30:01,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:30:01,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:30:01,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:30:01,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:30:01,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:30:01,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:30:01,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:30:01,481 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:30:01,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:30:01,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:30:01,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:30:01,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:30:01,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:30:01,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:30:01,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:30:01,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:30:01,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:30:01,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:30:01,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:30:01,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:30:01,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:30:01,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:30:01,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:30:01,484 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:30:01,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:30:01,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:30:01,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:30:01,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:30:01,976 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:30:01,977 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-09-24 18:30:02,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84503c8e0/9500abda7188421385443bcc728f2d93/FLAG044618165 [2020-09-24 18:30:02,659 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:30:02,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-09-24 18:30:02,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84503c8e0/9500abda7188421385443bcc728f2d93/FLAG044618165 [2020-09-24 18:30:02,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84503c8e0/9500abda7188421385443bcc728f2d93 [2020-09-24 18:30:02,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:30:02,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:30:02,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:30:02,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:30:03,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:30:03,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:30:02" (1/1) ... [2020-09-24 18:30:03,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180772d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03, skipping insertion in model container [2020-09-24 18:30:03,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:30:02" (1/1) ... [2020-09-24 18:30:03,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:30:03,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:30:03,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:30:03,438 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:30:03,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:30:03,632 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:30:03,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03 WrapperNode [2020-09-24 18:30:03,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:30:03,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:30:03,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:30:03,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:30:03,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03" (1/1) ... [2020-09-24 18:30:03,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03" (1/1) ... [2020-09-24 18:30:03,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03" (1/1) ... [2020-09-24 18:30:03,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03" (1/1) ... [2020-09-24 18:30:03,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03" (1/1) ... [2020-09-24 18:30:03,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03" (1/1) ... [2020-09-24 18:30:03,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03" (1/1) ... [2020-09-24 18:30:03,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:30:03,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:30:03,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:30:03,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:30:03,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03" (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 [2020-09-24 18:30:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:30:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:30:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:30:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:30:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:30:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:30:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:30:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:30:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:30:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:30:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:30:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:30:04,798 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:30:04,798 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 18:30:04,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:30:04 BoogieIcfgContainer [2020-09-24 18:30:04,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:30:04,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:30:04,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:30:04,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:30:04,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:30:02" (1/3) ... [2020-09-24 18:30:04,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b23dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:30:04, skipping insertion in model container [2020-09-24 18:30:04,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:03" (2/3) ... [2020-09-24 18:30:04,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b23dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:30:04, skipping insertion in model container [2020-09-24 18:30:04,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:30:04" (3/3) ... [2020-09-24 18:30:04,820 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-09-24 18:30:04,832 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:30:04,844 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-09-24 18:30:04,866 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-09-24 18:30:04,901 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:30:04,901 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:30:04,901 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:30:04,901 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:30:04,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:30:04,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:30:04,902 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:30:04,902 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:30:04,940 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states. [2020-09-24 18:30:04,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-24 18:30:04,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:04,950 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] [2020-09-24 18:30:04,964 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:04,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:04,973 INFO L82 PathProgramCache]: Analyzing trace with hash 519309997, now seen corresponding path program 1 times [2020-09-24 18:30:04,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:04,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166598749] [2020-09-24 18:30:04,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:05,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:05,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:05,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:05,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 18:30:05,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-09-24 18:30:05,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:30:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:30:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:30:05,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:05,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:05,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:05,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:05,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:05,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:30:05,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:05,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:05,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166598749] [2020-09-24 18:30:05,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:05,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:05,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930545588] [2020-09-24 18:30:05,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:05,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:05,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:05,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:05,742 INFO L87 Difference]: Start difference. First operand 519 states. Second operand 6 states. [2020-09-24 18:30:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:07,679 INFO L93 Difference]: Finished difference Result 546 states and 624 transitions. [2020-09-24 18:30:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:07,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-24 18:30:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:07,718 INFO L225 Difference]: With dead ends: 546 [2020-09-24 18:30:07,718 INFO L226 Difference]: Without dead ends: 471 [2020-09-24 18:30:07,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-24 18:30:07,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 459. [2020-09-24 18:30:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-09-24 18:30:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 480 transitions. [2020-09-24 18:30:07,808 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 480 transitions. Word has length 25 [2020-09-24 18:30:07,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:07,808 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 480 transitions. [2020-09-24 18:30:07,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:07,809 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 480 transitions. [2020-09-24 18:30:07,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 18:30:07,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:07,810 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] [2020-09-24 18:30:07,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:30:07,811 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:07,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:07,812 INFO L82 PathProgramCache]: Analyzing trace with hash 775203426, now seen corresponding path program 1 times [2020-09-24 18:30:07,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:07,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030917640] [2020-09-24 18:30:07,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:07,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:07,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:08,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:08,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:30:08,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:08,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-24 18:30:08,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 18:30:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 18:30:08,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:08,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:08,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:08,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:08,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:08,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:08,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:30:08,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:08,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:08,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:08,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030917640] [2020-09-24 18:30:08,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:08,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:08,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57292367] [2020-09-24 18:30:08,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:08,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:08,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:08,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:08,224 INFO L87 Difference]: Start difference. First operand 459 states and 480 transitions. Second operand 6 states. [2020-09-24 18:30:09,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:09,568 INFO L93 Difference]: Finished difference Result 469 states and 490 transitions. [2020-09-24 18:30:09,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:09,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 18:30:09,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:09,575 INFO L225 Difference]: With dead ends: 469 [2020-09-24 18:30:09,575 INFO L226 Difference]: Without dead ends: 447 [2020-09-24 18:30:09,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:09,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-24 18:30:09,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2020-09-24 18:30:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-09-24 18:30:09,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 459 transitions. [2020-09-24 18:30:09,599 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 459 transitions. Word has length 30 [2020-09-24 18:30:09,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:09,599 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 459 transitions. [2020-09-24 18:30:09,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:09,600 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 459 transitions. [2020-09-24 18:30:09,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-24 18:30:09,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:09,601 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] [2020-09-24 18:30:09,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:30:09,602 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:09,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:09,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1526563962, now seen corresponding path program 1 times [2020-09-24 18:30:09,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:09,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077617778] [2020-09-24 18:30:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:09,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:11,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:11,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 18:30:11,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:30:11,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1771 [2020-09-24 18:30:11,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:11,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:11,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:30:11,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 18:30:11,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:11,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:11,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:11,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:11,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:30:11,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:11,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:11,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077617778] [2020-09-24 18:30:11,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:11,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:11,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412594471] [2020-09-24 18:30:11,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:11,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:11,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:11,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:11,486 INFO L87 Difference]: Start difference. First operand 447 states and 459 transitions. Second operand 7 states. [2020-09-24 18:30:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:12,653 INFO L93 Difference]: Finished difference Result 447 states and 459 transitions. [2020-09-24 18:30:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:30:12,657 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-09-24 18:30:12,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:12,661 INFO L225 Difference]: With dead ends: 447 [2020-09-24 18:30:12,661 INFO L226 Difference]: Without dead ends: 445 [2020-09-24 18:30:12,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:12,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-24 18:30:12,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2020-09-24 18:30:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-09-24 18:30:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 457 transitions. [2020-09-24 18:30:12,678 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 457 transitions. Word has length 47 [2020-09-24 18:30:12,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:12,678 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 457 transitions. [2020-09-24 18:30:12,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 457 transitions. [2020-09-24 18:30:12,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 18:30:12,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:12,681 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] [2020-09-24 18:30:12,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:30:12,681 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:12,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:12,682 INFO L82 PathProgramCache]: Analyzing trace with hash -344421966, now seen corresponding path program 1 times [2020-09-24 18:30:12,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:12,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328717475] [2020-09-24 18:30:12,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:12,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:12,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:12,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:13,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:13,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-24 18:30:13,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:30:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 829 [2020-09-24 18:30:13,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-24 18:30:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 18:30:13,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:13,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:13,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:13,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:13,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:13,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:13,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:13,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:13,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:13,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:13,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:13,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328717475] [2020-09-24 18:30:13,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:13,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:13,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884244183] [2020-09-24 18:30:13,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:13,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:13,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:13,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:13,620 INFO L87 Difference]: Start difference. First operand 445 states and 457 transitions. Second operand 6 states. [2020-09-24 18:30:14,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:14,669 INFO L93 Difference]: Finished difference Result 445 states and 457 transitions. [2020-09-24 18:30:14,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:30:14,670 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-24 18:30:14,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:14,678 INFO L225 Difference]: With dead ends: 445 [2020-09-24 18:30:14,679 INFO L226 Difference]: Without dead ends: 433 [2020-09-24 18:30:14,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:14,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-24 18:30:14,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2020-09-24 18:30:14,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-09-24 18:30:14,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 445 transitions. [2020-09-24 18:30:14,701 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 445 transitions. Word has length 52 [2020-09-24 18:30:14,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:14,703 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 445 transitions. [2020-09-24 18:30:14,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:14,703 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 445 transitions. [2020-09-24 18:30:14,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-24 18:30:14,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:14,713 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] [2020-09-24 18:30:14,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:30:14,716 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:14,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:14,717 INFO L82 PathProgramCache]: Analyzing trace with hash 784264785, now seen corresponding path program 1 times [2020-09-24 18:30:14,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:14,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943561830] [2020-09-24 18:30:14,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:14,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:14,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:15,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:15,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-24 18:30:15,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:15,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-09-24 18:30:15,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:30:15,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 18:30:15,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:15,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:15,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:15,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:15,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:15,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:30:15,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:15,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943561830] [2020-09-24 18:30:15,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:15,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:15,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666320539] [2020-09-24 18:30:15,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:15,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:15,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:15,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:15,282 INFO L87 Difference]: Start difference. First operand 433 states and 445 transitions. Second operand 7 states. [2020-09-24 18:30:16,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:16,544 INFO L93 Difference]: Finished difference Result 499 states and 513 transitions. [2020-09-24 18:30:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:16,544 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-24 18:30:16,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:16,548 INFO L225 Difference]: With dead ends: 499 [2020-09-24 18:30:16,548 INFO L226 Difference]: Without dead ends: 497 [2020-09-24 18:30:16,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-24 18:30:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-24 18:30:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 431. [2020-09-24 18:30:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-24 18:30:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 443 transitions. [2020-09-24 18:30:16,565 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 443 transitions. Word has length 57 [2020-09-24 18:30:16,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:16,567 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 443 transitions. [2020-09-24 18:30:16,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:16,568 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 443 transitions. [2020-09-24 18:30:16,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-24 18:30:16,571 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:16,571 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] [2020-09-24 18:30:16,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:30:16,572 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:16,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:16,573 INFO L82 PathProgramCache]: Analyzing trace with hash 2053600793, now seen corresponding path program 1 times [2020-09-24 18:30:16,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:16,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41111860] [2020-09-24 18:30:16,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:16,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:16,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:16,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:16,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-24 18:30:16,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-09-24 18:30:16,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:30:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 18:30:16,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:17,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:17,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:17,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:17,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:17,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:17,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:17,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:17,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:17,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:17,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41111860] [2020-09-24 18:30:17,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:17,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:17,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484091049] [2020-09-24 18:30:17,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:17,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:17,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:17,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:17,111 INFO L87 Difference]: Start difference. First operand 431 states and 443 transitions. Second operand 7 states. [2020-09-24 18:30:18,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:18,247 INFO L93 Difference]: Finished difference Result 431 states and 443 transitions. [2020-09-24 18:30:18,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:30:18,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-24 18:30:18,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:18,253 INFO L225 Difference]: With dead ends: 431 [2020-09-24 18:30:18,254 INFO L226 Difference]: Without dead ends: 429 [2020-09-24 18:30:18,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:18,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-24 18:30:18,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2020-09-24 18:30:18,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-24 18:30:18,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 441 transitions. [2020-09-24 18:30:18,266 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 441 transitions. Word has length 57 [2020-09-24 18:30:18,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:18,267 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 441 transitions. [2020-09-24 18:30:18,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:18,267 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 441 transitions. [2020-09-24 18:30:18,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-24 18:30:18,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:18,268 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] [2020-09-24 18:30:18,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:30:18,268 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:18,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:18,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1921870681, now seen corresponding path program 1 times [2020-09-24 18:30:18,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:18,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835301842] [2020-09-24 18:30:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:18,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:18,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:18,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:18,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-24 18:30:18,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:18,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-24 18:30:18,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:30:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 18:30:18,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:18,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:18,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:18,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:18,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:18,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:18,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:18,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:18,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:18,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835301842] [2020-09-24 18:30:18,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:18,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:18,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729386858] [2020-09-24 18:30:18,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:18,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:18,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:18,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:18,766 INFO L87 Difference]: Start difference. First operand 429 states and 441 transitions. Second operand 7 states. [2020-09-24 18:30:20,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:20,007 INFO L93 Difference]: Finished difference Result 478 states and 492 transitions. [2020-09-24 18:30:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:20,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-24 18:30:20,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:20,011 INFO L225 Difference]: With dead ends: 478 [2020-09-24 18:30:20,011 INFO L226 Difference]: Without dead ends: 476 [2020-09-24 18:30:20,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-24 18:30:20,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-24 18:30:20,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 427. [2020-09-24 18:30:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-24 18:30:20,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 439 transitions. [2020-09-24 18:30:20,023 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 439 transitions. Word has length 57 [2020-09-24 18:30:20,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:20,024 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 439 transitions. [2020-09-24 18:30:20,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:20,024 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 439 transitions. [2020-09-24 18:30:20,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-24 18:30:20,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:20,025 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] [2020-09-24 18:30:20,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 18:30:20,025 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:20,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:20,026 INFO L82 PathProgramCache]: Analyzing trace with hash -382650347, now seen corresponding path program 1 times [2020-09-24 18:30:20,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:20,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364229788] [2020-09-24 18:30:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:20,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:20,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:21,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:21,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 18:30:21,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:21,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-24 18:30:21,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 18:30:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 18:30:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 18:30:21,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:21,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:21,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:21,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:21,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:21,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:21,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:30:21,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:21,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364229788] [2020-09-24 18:30:21,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:21,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:21,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347526166] [2020-09-24 18:30:21,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:21,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:21,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:21,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:21,233 INFO L87 Difference]: Start difference. First operand 427 states and 439 transitions. Second operand 8 states. [2020-09-24 18:30:22,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:22,742 INFO L93 Difference]: Finished difference Result 494 states and 508 transitions. [2020-09-24 18:30:22,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 18:30:22,743 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-09-24 18:30:22,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:22,749 INFO L225 Difference]: With dead ends: 494 [2020-09-24 18:30:22,749 INFO L226 Difference]: Without dead ends: 492 [2020-09-24 18:30:22,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:30:22,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-24 18:30:22,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 425. [2020-09-24 18:30:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-09-24 18:30:22,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 437 transitions. [2020-09-24 18:30:22,764 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 437 transitions. Word has length 62 [2020-09-24 18:30:22,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:22,764 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 437 transitions. [2020-09-24 18:30:22,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:22,764 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 437 transitions. [2020-09-24 18:30:22,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-24 18:30:22,765 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:22,765 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] [2020-09-24 18:30:22,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 18:30:22,766 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:22,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:22,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1546196018, now seen corresponding path program 1 times [2020-09-24 18:30:22,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:22,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036699676] [2020-09-24 18:30:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:22,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:22,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:23,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:23,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 18:30:23,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:23,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-09-24 18:30:23,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 18:30:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 18:30:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 18:30:23,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:23,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:23,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:23,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:23,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:23,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:23,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036699676] [2020-09-24 18:30:23,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:23,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:23,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826543310] [2020-09-24 18:30:23,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:23,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:23,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:23,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:23,976 INFO L87 Difference]: Start difference. First operand 425 states and 437 transitions. Second operand 8 states. [2020-09-24 18:30:25,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:25,375 INFO L93 Difference]: Finished difference Result 425 states and 437 transitions. [2020-09-24 18:30:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:30:25,375 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-09-24 18:30:25,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:25,379 INFO L225 Difference]: With dead ends: 425 [2020-09-24 18:30:25,379 INFO L226 Difference]: Without dead ends: 413 [2020-09-24 18:30:25,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-09-24 18:30:25,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-09-24 18:30:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-09-24 18:30:25,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-09-24 18:30:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 425 transitions. [2020-09-24 18:30:25,389 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 425 transitions. Word has length 62 [2020-09-24 18:30:25,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:25,389 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 425 transitions. [2020-09-24 18:30:25,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 425 transitions. [2020-09-24 18:30:25,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-24 18:30:25,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:25,390 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] [2020-09-24 18:30:25,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 18:30:25,391 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:25,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:25,391 INFO L82 PathProgramCache]: Analyzing trace with hash 781872345, now seen corresponding path program 1 times [2020-09-24 18:30:25,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:25,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244180015] [2020-09-24 18:30:25,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:25,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:25,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:26,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:26,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 18:30:26,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:26,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-24 18:30:26,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:26,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 18:30:26,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 18:30:26,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 18:30:26,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:26,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:26,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:26,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:26,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:26,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:26,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:26,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:26,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:26,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:26,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244180015] [2020-09-24 18:30:26,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:26,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:26,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564759285] [2020-09-24 18:30:26,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:26,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:26,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:26,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:26,573 INFO L87 Difference]: Start difference. First operand 413 states and 425 transitions. Second operand 8 states. [2020-09-24 18:30:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:27,936 INFO L93 Difference]: Finished difference Result 453 states and 467 transitions. [2020-09-24 18:30:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 18:30:27,936 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-09-24 18:30:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:27,940 INFO L225 Difference]: With dead ends: 453 [2020-09-24 18:30:27,940 INFO L226 Difference]: Without dead ends: 451 [2020-09-24 18:30:27,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:30:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-24 18:30:27,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 411. [2020-09-24 18:30:27,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-24 18:30:27,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 423 transitions. [2020-09-24 18:30:27,950 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 423 transitions. Word has length 62 [2020-09-24 18:30:27,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:27,951 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 423 transitions. [2020-09-24 18:30:27,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:27,951 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 423 transitions. [2020-09-24 18:30:27,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-24 18:30:27,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:27,952 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] [2020-09-24 18:30:27,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 18:30:27,952 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:27,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:27,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1199808863, now seen corresponding path program 1 times [2020-09-24 18:30:27,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:27,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406487973] [2020-09-24 18:30:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:27,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:28,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:28,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:28,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:28,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:28,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:29,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:29,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:29,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:30,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:32,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:32,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 18:30:32,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 18:30:32,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:30:32,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:30:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:30:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 18:30:32,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:33,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:33,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:33,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:33,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:33,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:33,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:33,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:33,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:33,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:33,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:33,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:33,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406487973] [2020-09-24 18:30:33,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:33,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:33,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627348526] [2020-09-24 18:30:33,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:33,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:33,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:33,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:33,051 INFO L87 Difference]: Start difference. First operand 411 states and 423 transitions. Second operand 8 states. [2020-09-24 18:30:34,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:34,358 INFO L93 Difference]: Finished difference Result 453 states and 467 transitions. [2020-09-24 18:30:34,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:30:34,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-09-24 18:30:34,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:34,361 INFO L225 Difference]: With dead ends: 453 [2020-09-24 18:30:34,361 INFO L226 Difference]: Without dead ends: 451 [2020-09-24 18:30:34,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:30:34,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-24 18:30:34,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 409. [2020-09-24 18:30:34,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-24 18:30:34,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 421 transitions. [2020-09-24 18:30:34,370 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 421 transitions. Word has length 70 [2020-09-24 18:30:34,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:34,370 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 421 transitions. [2020-09-24 18:30:34,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:34,371 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 421 transitions. [2020-09-24 18:30:34,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 18:30:34,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:34,372 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] [2020-09-24 18:30:34,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 18:30:34,372 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:34,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:34,373 INFO L82 PathProgramCache]: Analyzing trace with hash 886846446, now seen corresponding path program 1 times [2020-09-24 18:30:34,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:34,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391021289] [2020-09-24 18:30:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:34,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:34,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:34,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:34,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:37,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:37,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 18:30:37,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:30:37,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3174 [2020-09-24 18:30:37,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-24 18:30:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 18:30:37,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:37,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:37,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:37,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:37,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:37,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:37,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:37,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:37,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:37,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391021289] [2020-09-24 18:30:37,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:37,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:37,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972771598] [2020-09-24 18:30:37,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:37,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:37,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:37,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:37,647 INFO L87 Difference]: Start difference. First operand 409 states and 421 transitions. Second operand 6 states. [2020-09-24 18:30:38,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:38,706 INFO L93 Difference]: Finished difference Result 409 states and 421 transitions. [2020-09-24 18:30:38,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:30:38,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2020-09-24 18:30:38,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:38,709 INFO L225 Difference]: With dead ends: 409 [2020-09-24 18:30:38,709 INFO L226 Difference]: Without dead ends: 222 [2020-09-24 18:30:38,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:38,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-09-24 18:30:38,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2020-09-24 18:30:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-24 18:30:38,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 222 transitions. [2020-09-24 18:30:38,717 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 222 transitions. Word has length 75 [2020-09-24 18:30:38,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:38,717 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 222 transitions. [2020-09-24 18:30:38,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:38,717 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 222 transitions. [2020-09-24 18:30:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 18:30:38,719 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:38,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:38,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 18:30:38,719 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:38,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:38,720 INFO L82 PathProgramCache]: Analyzing trace with hash -778836105, now seen corresponding path program 1 times [2020-09-24 18:30:38,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:38,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578040511] [2020-09-24 18:30:38,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:38,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:38,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:39,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:39,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:39,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:39,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:43,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:43,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-24 18:30:43,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:30:43,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 18:30:43,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:43,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 18:30:43,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-24 18:30:43,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 18:30:43,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:43,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:43,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:43,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:43,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:43,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:43,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:43,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:43,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:43,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:43,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:43,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578040511] [2020-09-24 18:30:43,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:43,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:30:43,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644220699] [2020-09-24 18:30:43,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:30:43,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:43,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:30:43,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:43,967 INFO L87 Difference]: Start difference. First operand 222 states and 222 transitions. Second operand 11 states. [2020-09-24 18:30:44,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:44,845 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2020-09-24 18:30:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:30:44,846 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 196 [2020-09-24 18:30:44,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:44,848 INFO L225 Difference]: With dead ends: 247 [2020-09-24 18:30:44,848 INFO L226 Difference]: Without dead ends: 245 [2020-09-24 18:30:44,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:30:44,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-09-24 18:30:44,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 220. [2020-09-24 18:30:44,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-24 18:30:44,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 220 transitions. [2020-09-24 18:30:44,859 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 220 transitions. Word has length 196 [2020-09-24 18:30:44,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:44,859 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 220 transitions. [2020-09-24 18:30:44,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 18:30:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 220 transitions. [2020-09-24 18:30:44,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 18:30:44,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:44,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:44,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 18:30:44,863 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:44,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:44,863 INFO L82 PathProgramCache]: Analyzing trace with hash -687472165, now seen corresponding path program 1 times [2020-09-24 18:30:44,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:44,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737582468] [2020-09-24 18:30:44,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:44,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:45,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:45,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:45,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:45,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:45,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:49,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:49,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-24 18:30:49,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:30:49,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 18:30:49,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 18:30:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-24 18:30:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 18:30:49,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:50,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:50,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:50,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:50,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:50,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:50,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:50,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:50,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:50,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:50,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737582468] [2020-09-24 18:30:50,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:50,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:30:50,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680001579] [2020-09-24 18:30:50,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:30:50,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:50,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:30:50,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:50,076 INFO L87 Difference]: Start difference. First operand 220 states and 220 transitions. Second operand 11 states. [2020-09-24 18:30:50,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:50,742 INFO L93 Difference]: Finished difference Result 220 states and 220 transitions. [2020-09-24 18:30:50,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:30:50,743 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 196 [2020-09-24 18:30:50,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:50,745 INFO L225 Difference]: With dead ends: 220 [2020-09-24 18:30:50,745 INFO L226 Difference]: Without dead ends: 218 [2020-09-24 18:30:50,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-24 18:30:50,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-24 18:30:50,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-24 18:30:50,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-24 18:30:50,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 218 transitions. [2020-09-24 18:30:50,752 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 218 transitions. Word has length 196 [2020-09-24 18:30:50,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:50,753 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 218 transitions. [2020-09-24 18:30:50,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 18:30:50,753 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 218 transitions. [2020-09-24 18:30:50,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 18:30:50,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:50,755 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:50,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 18:30:50,756 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:50,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:50,756 INFO L82 PathProgramCache]: Analyzing trace with hash 858487023, now seen corresponding path program 1 times [2020-09-24 18:30:50,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:50,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036344495] [2020-09-24 18:30:50,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:50,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:51,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:51,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:51,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking...