/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_9.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:33:56,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:33:56,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:33:56,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:33:56,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:33:56,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:33:56,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:33:56,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:33:56,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:33:56,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:33:56,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:33:56,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:33:56,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:33:56,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:33:56,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:33:56,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:33:56,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:33:56,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:33:56,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:33:56,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:33:56,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:33:56,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:33:56,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:33:56,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:33:56,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:33:56,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:33:56,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:33:56,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:33:56,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:33:56,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:33:56,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:33:56,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:33:56,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:33:56,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:33:56,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:33:56,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:33:56,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:33:56,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:33:56,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:33:56,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:33:56,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:33:56,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:33:56,963 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:33:56,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:33:56,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:33:56,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:33:56,965 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:33:56,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:33:56,966 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:33:56,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:33:56,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:33:56,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:33:56,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:33:56,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:33:56,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:33:56,968 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:33:56,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:33:56,969 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:33:56,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:33:56,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:33:56,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:33:56,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:33:56,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:33:56,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:33:56,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:33:56,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:33:56,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:33:56,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:33:56,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:33:56,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:33:56,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:33:56,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:33:57,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:33:57,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:33:57,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:33:57,438 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:33:57,438 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:33:57,439 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_9.c [2020-09-25 14:33:57,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b50448e85/98904373643040728f7469b4bb89bd89/FLAG8c22c8982 [2020-09-25 14:33:58,050 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:33:58,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_9.c [2020-09-25 14:33:58,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b50448e85/98904373643040728f7469b4bb89bd89/FLAG8c22c8982 [2020-09-25 14:33:58,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b50448e85/98904373643040728f7469b4bb89bd89 [2020-09-25 14:33:58,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:33:58,383 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:33:58,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:33:58,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:33:58,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:33:58,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:33:58" (1/1) ... [2020-09-25 14:33:58,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e5ec8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58, skipping insertion in model container [2020-09-25 14:33:58,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:33:58" (1/1) ... [2020-09-25 14:33:58,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:33:58,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:33:58,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:33:58,664 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:33:58,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:33:58,711 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:33:58,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58 WrapperNode [2020-09-25 14:33:58,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:33:58,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:33:58,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:33:58,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:33:58,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58" (1/1) ... [2020-09-25 14:33:58,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58" (1/1) ... [2020-09-25 14:33:58,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58" (1/1) ... [2020-09-25 14:33:58,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58" (1/1) ... [2020-09-25 14:33:58,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58" (1/1) ... [2020-09-25 14:33:58,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58" (1/1) ... [2020-09-25 14:33:58,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58" (1/1) ... [2020-09-25 14:33:58,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:33:58,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:33:58,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:33:58,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:33:58,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:33:58,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:33:58,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:33:58,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:33:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:33:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:33:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:33:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:33:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:33:59,304 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:33:59,305 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 14:33:59,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:33:59 BoogieIcfgContainer [2020-09-25 14:33:59,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:33:59,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:33:59,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:33:59,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:33:59,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:33:58" (1/3) ... [2020-09-25 14:33:59,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6191db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:33:59, skipping insertion in model container [2020-09-25 14:33:59,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:58" (2/3) ... [2020-09-25 14:33:59,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6191db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:33:59, skipping insertion in model container [2020-09-25 14:33:59,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:33:59" (3/3) ... [2020-09-25 14:33:59,334 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2020-09-25 14:33:59,344 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:33:59,352 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:33:59,373 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:33:59,407 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:33:59,407 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:33:59,407 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:33:59,407 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:33:59,408 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:33:59,408 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:33:59,408 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:33:59,408 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:33:59,431 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-09-25 14:33:59,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 14:33:59,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:59,443 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] [2020-09-25 14:33:59,443 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:59,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:59,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1511648252, now seen corresponding path program 1 times [2020-09-25 14:33:59,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:59,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332233024] [2020-09-25 14:33:59,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:59,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:59,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:59,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 14:33:59,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:59,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 14:33:59,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:59,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:33:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 14:33:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:33:59,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:33:59,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:59,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:59,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:59,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:59,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:59,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:33:59,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:59,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:59,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:59,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:59,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:59,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:33:59,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:33:59,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332233024] [2020-09-25 14:33:59,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:59,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:00,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966574385] [2020-09-25 14:34:00,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:00,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:00,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:00,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:00,032 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2020-09-25 14:34:00,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:00,144 INFO L93 Difference]: Finished difference Result 235 states and 322 transitions. [2020-09-25 14:34:00,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:00,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 14:34:00,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:00,163 INFO L225 Difference]: With dead ends: 235 [2020-09-25 14:34:00,163 INFO L226 Difference]: Without dead ends: 160 [2020-09-25 14:34:00,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:00,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-25 14:34:00,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-09-25 14:34:00,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-25 14:34:00,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2020-09-25 14:34:00,227 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 67 [2020-09-25 14:34:00,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:00,228 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2020-09-25 14:34:00,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:00,228 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2020-09-25 14:34:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 14:34:00,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:00,231 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] [2020-09-25 14:34:00,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:34:00,231 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:00,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:00,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1267771135, now seen corresponding path program 1 times [2020-09-25 14:34:00,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:00,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114724586] [2020-09-25 14:34:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:00,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:00,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:00,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 14:34:00,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:00,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 14:34:00,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:00,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:00,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 14:34:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:34:00,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:00,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:00,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:00,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:00,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:00,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:00,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:34:00,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:00,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:00,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:34:00,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:00,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114724586] [2020-09-25 14:34:00,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:00,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:00,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939568671] [2020-09-25 14:34:00,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:00,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:00,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:00,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:00,514 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 3 states. [2020-09-25 14:34:00,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:00,578 INFO L93 Difference]: Finished difference Result 192 states and 256 transitions. [2020-09-25 14:34:00,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:00,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 14:34:00,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:00,583 INFO L225 Difference]: With dead ends: 192 [2020-09-25 14:34:00,583 INFO L226 Difference]: Without dead ends: 190 [2020-09-25 14:34:00,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:00,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-25 14:34:00,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 158. [2020-09-25 14:34:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-25 14:34:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2020-09-25 14:34:00,601 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 68 [2020-09-25 14:34:00,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:00,601 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2020-09-25 14:34:00,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:00,602 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2020-09-25 14:34:00,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 14:34:00,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:00,603 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] [2020-09-25 14:34:00,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:34:00,604 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:00,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:00,604 INFO L82 PathProgramCache]: Analyzing trace with hash -383300170, now seen corresponding path program 1 times [2020-09-25 14:34:00,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:00,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108736574] [2020-09-25 14:34:00,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:00,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:00,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:00,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 14:34:00,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:00,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 14:34:00,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:00,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 14:34:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:34:00,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:00,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:00,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:00,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:00,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:00,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:34:00,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:00,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:00,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:00,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:00,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:00,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:00,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108736574] [2020-09-25 14:34:00,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:00,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:00,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914890989] [2020-09-25 14:34:00,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:00,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:00,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:00,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:00,739 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand 3 states. [2020-09-25 14:34:00,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:00,762 INFO L93 Difference]: Finished difference Result 386 states and 531 transitions. [2020-09-25 14:34:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:00,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 14:34:00,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:00,765 INFO L225 Difference]: With dead ends: 386 [2020-09-25 14:34:00,765 INFO L226 Difference]: Without dead ends: 269 [2020-09-25 14:34:00,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:00,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-25 14:34:00,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2020-09-25 14:34:00,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-25 14:34:00,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2020-09-25 14:34:00,788 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 68 [2020-09-25 14:34:00,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:00,788 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2020-09-25 14:34:00,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:00,789 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2020-09-25 14:34:00,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 14:34:00,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:00,791 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] [2020-09-25 14:34:00,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:34:00,791 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:00,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:00,792 INFO L82 PathProgramCache]: Analyzing trace with hash 113752694, now seen corresponding path program 1 times [2020-09-25 14:34:00,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:00,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943422535] [2020-09-25 14:34:00,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:00,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:00,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:00,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 14:34:00,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:00,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 14:34:00,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:00,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 14:34:00,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:34:00,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:00,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:00,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:00,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:00,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:00,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:00,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:34:00,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:00,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:00,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:00,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943422535] [2020-09-25 14:34:00,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:00,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:00,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596481363] [2020-09-25 14:34:00,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:00,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:00,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:00,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:00,914 INFO L87 Difference]: Start difference. First operand 267 states and 360 transitions. Second operand 3 states. [2020-09-25 14:34:00,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:00,930 INFO L93 Difference]: Finished difference Result 327 states and 446 transitions. [2020-09-25 14:34:00,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:00,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-25 14:34:00,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:00,933 INFO L225 Difference]: With dead ends: 327 [2020-09-25 14:34:00,933 INFO L226 Difference]: Without dead ends: 325 [2020-09-25 14:34:00,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:00,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-25 14:34:00,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 267. [2020-09-25 14:34:00,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-25 14:34:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 358 transitions. [2020-09-25 14:34:00,947 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 358 transitions. Word has length 69 [2020-09-25 14:34:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:00,948 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 358 transitions. [2020-09-25 14:34:00,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 358 transitions. [2020-09-25 14:34:00,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 14:34:00,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:00,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:34:00,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:34:00,951 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:00,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:00,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1002841264, now seen corresponding path program 1 times [2020-09-25 14:34:00,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:00,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050523992] [2020-09-25 14:34:00,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:00,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 14:34:01,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 14:34:01,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 14:34:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:34:01,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:01,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:01,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:34:01,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:01,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:01,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050523992] [2020-09-25 14:34:01,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:01,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:01,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63757497] [2020-09-25 14:34:01,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:01,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:01,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:01,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,093 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. Second operand 3 states. [2020-09-25 14:34:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:01,114 INFO L93 Difference]: Finished difference Result 707 states and 976 transitions. [2020-09-25 14:34:01,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:01,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-25 14:34:01,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:01,117 INFO L225 Difference]: With dead ends: 707 [2020-09-25 14:34:01,117 INFO L226 Difference]: Without dead ends: 481 [2020-09-25 14:34:01,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-09-25 14:34:01,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2020-09-25 14:34:01,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-09-25 14:34:01,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2020-09-25 14:34:01,135 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 69 [2020-09-25 14:34:01,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:01,136 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2020-09-25 14:34:01,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:01,136 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2020-09-25 14:34:01,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 14:34:01,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:01,139 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] [2020-09-25 14:34:01,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:34:01,139 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:01,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:01,140 INFO L82 PathProgramCache]: Analyzing trace with hash -8681195, now seen corresponding path program 1 times [2020-09-25 14:34:01,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:01,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572092078] [2020-09-25 14:34:01,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 14:34:01,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 14:34:01,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:01,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 14:34:01,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:34:01,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:01,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:01,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:34:01,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:01,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:01,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572092078] [2020-09-25 14:34:01,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:01,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:01,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536287198] [2020-09-25 14:34:01,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:01,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:01,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:01,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,274 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand 3 states. [2020-09-25 14:34:01,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:01,298 INFO L93 Difference]: Finished difference Result 587 states and 804 transitions. [2020-09-25 14:34:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:01,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-09-25 14:34:01,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:01,303 INFO L225 Difference]: With dead ends: 587 [2020-09-25 14:34:01,303 INFO L226 Difference]: Without dead ends: 585 [2020-09-25 14:34:01,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-09-25 14:34:01,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 479. [2020-09-25 14:34:01,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-09-25 14:34:01,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 646 transitions. [2020-09-25 14:34:01,323 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 646 transitions. Word has length 70 [2020-09-25 14:34:01,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:01,324 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 646 transitions. [2020-09-25 14:34:01,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:01,324 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 646 transitions. [2020-09-25 14:34:01,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 14:34:01,328 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:01,328 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] [2020-09-25 14:34:01,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:34:01,329 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:01,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:01,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1023553130, now seen corresponding path program 1 times [2020-09-25 14:34:01,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:01,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353696945] [2020-09-25 14:34:01,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 14:34:01,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 14:34:01,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 14:34:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:34:01,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:01,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:01,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:34:01,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:01,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:01,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:01,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353696945] [2020-09-25 14:34:01,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:01,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:01,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643766644] [2020-09-25 14:34:01,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:01,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:01,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:01,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,449 INFO L87 Difference]: Start difference. First operand 479 states and 646 transitions. Second operand 3 states. [2020-09-25 14:34:01,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:01,474 INFO L93 Difference]: Finished difference Result 1331 states and 1824 transitions. [2020-09-25 14:34:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:01,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-09-25 14:34:01,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:01,479 INFO L225 Difference]: With dead ends: 1331 [2020-09-25 14:34:01,479 INFO L226 Difference]: Without dead ends: 893 [2020-09-25 14:34:01,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-09-25 14:34:01,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 891. [2020-09-25 14:34:01,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-25 14:34:01,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1202 transitions. [2020-09-25 14:34:01,504 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1202 transitions. Word has length 70 [2020-09-25 14:34:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:01,505 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1202 transitions. [2020-09-25 14:34:01,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:01,505 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1202 transitions. [2020-09-25 14:34:01,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 14:34:01,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:01,507 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] [2020-09-25 14:34:01,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:34:01,507 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:01,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:01,508 INFO L82 PathProgramCache]: Analyzing trace with hash 490835914, now seen corresponding path program 1 times [2020-09-25 14:34:01,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:01,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30634503] [2020-09-25 14:34:01,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 14:34:01,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 14:34:01,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 14:34:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:34:01,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:01,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:01,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:01,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:01,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30634503] [2020-09-25 14:34:01,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:01,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:01,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208732458] [2020-09-25 14:34:01,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:01,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:01,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:01,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,614 INFO L87 Difference]: Start difference. First operand 891 states and 1202 transitions. Second operand 3 states. [2020-09-25 14:34:01,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:01,649 INFO L93 Difference]: Finished difference Result 1087 states and 1476 transitions. [2020-09-25 14:34:01,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:01,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-09-25 14:34:01,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:01,655 INFO L225 Difference]: With dead ends: 1087 [2020-09-25 14:34:01,655 INFO L226 Difference]: Without dead ends: 1085 [2020-09-25 14:34:01,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-09-25 14:34:01,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 891. [2020-09-25 14:34:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-25 14:34:01,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1194 transitions. [2020-09-25 14:34:01,682 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1194 transitions. Word has length 71 [2020-09-25 14:34:01,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:01,683 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1194 transitions. [2020-09-25 14:34:01,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:01,684 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1194 transitions. [2020-09-25 14:34:01,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 14:34:01,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:01,685 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] [2020-09-25 14:34:01,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:34:01,685 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:01,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:01,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1665621348, now seen corresponding path program 1 times [2020-09-25 14:34:01,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:01,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22074849] [2020-09-25 14:34:01,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 14:34:01,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 14:34:01,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 14:34:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:34:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:01,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:01,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:34:01,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:01,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:01,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:01,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:01,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22074849] [2020-09-25 14:34:01,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:01,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:01,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647455716] [2020-09-25 14:34:01,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:01,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:01,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:01,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,801 INFO L87 Difference]: Start difference. First operand 891 states and 1194 transitions. Second operand 3 states. [2020-09-25 14:34:01,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:01,843 INFO L93 Difference]: Finished difference Result 2543 states and 3436 transitions. [2020-09-25 14:34:01,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:01,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-09-25 14:34:01,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:01,851 INFO L225 Difference]: With dead ends: 2543 [2020-09-25 14:34:01,851 INFO L226 Difference]: Without dead ends: 1693 [2020-09-25 14:34:01,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:01,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2020-09-25 14:34:01,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1691. [2020-09-25 14:34:01,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-09-25 14:34:01,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2250 transitions. [2020-09-25 14:34:01,900 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2250 transitions. Word has length 71 [2020-09-25 14:34:01,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:01,901 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2250 transitions. [2020-09-25 14:34:01,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:01,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2250 transitions. [2020-09-25 14:34:01,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 14:34:01,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:01,903 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] [2020-09-25 14:34:01,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 14:34:01,903 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:01,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:01,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1204002519, now seen corresponding path program 1 times [2020-09-25 14:34:01,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:01,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197753944] [2020-09-25 14:34:01,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 14:34:01,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 14:34:01,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-25 14:34:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:34:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:01,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:02,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:02,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:02,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:02,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:34:02,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:02,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:02,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:02,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:02,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:02,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:02,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:02,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197753944] [2020-09-25 14:34:02,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:02,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:02,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433676522] [2020-09-25 14:34:02,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:02,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:02,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:02,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:02,035 INFO L87 Difference]: Start difference. First operand 1691 states and 2250 transitions. Second operand 3 states. [2020-09-25 14:34:02,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:02,068 INFO L93 Difference]: Finished difference Result 2047 states and 2732 transitions. [2020-09-25 14:34:02,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:02,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-09-25 14:34:02,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:02,077 INFO L225 Difference]: With dead ends: 2047 [2020-09-25 14:34:02,077 INFO L226 Difference]: Without dead ends: 2045 [2020-09-25 14:34:02,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:02,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-09-25 14:34:02,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1691. [2020-09-25 14:34:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-09-25 14:34:02,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2234 transitions. [2020-09-25 14:34:02,133 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2234 transitions. Word has length 72 [2020-09-25 14:34:02,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:02,134 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2234 transitions. [2020-09-25 14:34:02,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:02,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2234 transitions. [2020-09-25 14:34:02,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 14:34:02,136 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:02,136 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] [2020-09-25 14:34:02,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 14:34:02,136 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:02,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:02,137 INFO L82 PathProgramCache]: Analyzing trace with hash 94899998, now seen corresponding path program 1 times [2020-09-25 14:34:02,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:02,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531134468] [2020-09-25 14:34:02,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:02,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:02,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 14:34:02,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:02,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 14:34:02,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:02,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-25 14:34:02,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:34:02,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:02,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:02,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:02,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:02,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:02,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:02,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:02,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:02,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:02,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531134468] [2020-09-25 14:34:02,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:02,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:02,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445846081] [2020-09-25 14:34:02,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:02,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:02,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:02,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:02,229 INFO L87 Difference]: Start difference. First operand 1691 states and 2234 transitions. Second operand 3 states. [2020-09-25 14:34:02,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:02,276 INFO L93 Difference]: Finished difference Result 4895 states and 6492 transitions. [2020-09-25 14:34:02,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:02,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-09-25 14:34:02,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:02,290 INFO L225 Difference]: With dead ends: 4895 [2020-09-25 14:34:02,290 INFO L226 Difference]: Without dead ends: 3245 [2020-09-25 14:34:02,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2020-09-25 14:34:02,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3243. [2020-09-25 14:34:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-09-25 14:34:02,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4234 transitions. [2020-09-25 14:34:02,375 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4234 transitions. Word has length 72 [2020-09-25 14:34:02,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:02,375 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4234 transitions. [2020-09-25 14:34:02,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:02,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4234 transitions. [2020-09-25 14:34:02,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 14:34:02,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:02,378 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] [2020-09-25 14:34:02,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 14:34:02,378 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:02,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:02,379 INFO L82 PathProgramCache]: Analyzing trace with hash 2090581278, now seen corresponding path program 1 times [2020-09-25 14:34:02,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:02,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877067056] [2020-09-25 14:34:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:02,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:02,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 14:34:02,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:02,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:34:02,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:02,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:02,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:02,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 14:34:02,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:34:02,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:02,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:02,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:02,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:02,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:02,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:02,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:02,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:02,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:02,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:02,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:02,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:02,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877067056] [2020-09-25 14:34:02,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:02,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:02,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769087596] [2020-09-25 14:34:02,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:02,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:02,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:02,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:02,464 INFO L87 Difference]: Start difference. First operand 3243 states and 4234 transitions. Second operand 3 states. [2020-09-25 14:34:02,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:02,509 INFO L93 Difference]: Finished difference Result 3887 states and 5068 transitions. [2020-09-25 14:34:02,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:02,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-09-25 14:34:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:02,528 INFO L225 Difference]: With dead ends: 3887 [2020-09-25 14:34:02,528 INFO L226 Difference]: Without dead ends: 3885 [2020-09-25 14:34:02,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2020-09-25 14:34:02,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3243. [2020-09-25 14:34:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-09-25 14:34:02,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4202 transitions. [2020-09-25 14:34:02,632 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4202 transitions. Word has length 73 [2020-09-25 14:34:02,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:02,632 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4202 transitions. [2020-09-25 14:34:02,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:02,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4202 transitions. [2020-09-25 14:34:02,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 14:34:02,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:02,635 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] [2020-09-25 14:34:02,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 14:34:02,636 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:02,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1352821224, now seen corresponding path program 1 times [2020-09-25 14:34:02,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:02,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299582911] [2020-09-25 14:34:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:02,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:02,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 14:34:02,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:34:02,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:02,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:02,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:02,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 14:34:02,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:34:02,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:02,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:02,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:02,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:02,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:02,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:34:02,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:02,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:02,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:02,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299582911] [2020-09-25 14:34:02,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:02,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:02,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987993630] [2020-09-25 14:34:02,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:02,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:02,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:02,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:02,738 INFO L87 Difference]: Start difference. First operand 3243 states and 4202 transitions. Second operand 3 states. [2020-09-25 14:34:02,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:02,804 INFO L93 Difference]: Finished difference Result 9455 states and 12268 transitions. [2020-09-25 14:34:02,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:02,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-09-25 14:34:02,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:02,832 INFO L225 Difference]: With dead ends: 9455 [2020-09-25 14:34:02,832 INFO L226 Difference]: Without dead ends: 6253 [2020-09-25 14:34:02,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2020-09-25 14:34:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 6251. [2020-09-25 14:34:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6251 states. [2020-09-25 14:34:03,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 7978 transitions. [2020-09-25 14:34:03,012 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 7978 transitions. Word has length 73 [2020-09-25 14:34:03,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:03,012 INFO L479 AbstractCegarLoop]: Abstraction has 6251 states and 7978 transitions. [2020-09-25 14:34:03,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:03,013 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 7978 transitions. [2020-09-25 14:34:03,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 14:34:03,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:03,017 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] [2020-09-25 14:34:03,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 14:34:03,018 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:03,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:03,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1012461522, now seen corresponding path program 1 times [2020-09-25 14:34:03,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:03,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121959133] [2020-09-25 14:34:03,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:03,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:03,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:03,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:34:03,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 14:34:03,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:03,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 14:34:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:34:03,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:03,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:03,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:03,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:03,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:03,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:03,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:03,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:03,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:03,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:03,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:03,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:03,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:03,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121959133] [2020-09-25 14:34:03,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:03,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:03,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367604276] [2020-09-25 14:34:03,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:03,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:03,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:03,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:03,113 INFO L87 Difference]: Start difference. First operand 6251 states and 7978 transitions. Second operand 3 states. [2020-09-25 14:34:03,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:03,273 INFO L93 Difference]: Finished difference Result 18287 states and 23340 transitions. [2020-09-25 14:34:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:03,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-25 14:34:03,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:03,352 INFO L225 Difference]: With dead ends: 18287 [2020-09-25 14:34:03,352 INFO L226 Difference]: Without dead ends: 12077 [2020-09-25 14:34:03,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12077 states. [2020-09-25 14:34:03,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12077 to 12075. [2020-09-25 14:34:03,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-09-25 14:34:03,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15146 transitions. [2020-09-25 14:34:03,703 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15146 transitions. Word has length 74 [2020-09-25 14:34:03,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:03,703 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15146 transitions. [2020-09-25 14:34:03,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15146 transitions. [2020-09-25 14:34:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 14:34:03,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:03,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:34:03,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 14:34:03,714 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:03,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:03,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1143464253, now seen corresponding path program 1 times [2020-09-25 14:34:03,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:03,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14791358] [2020-09-25 14:34:03,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:03,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:03,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:03,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:34:03,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:03,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 14:34:03,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:03,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 14:34:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:34:03,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:03,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:03,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:03,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:03,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:03,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:03,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:34:03,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:03,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:03,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:03,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:03,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:03,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:03,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14791358] [2020-09-25 14:34:03,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:03,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:03,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172225042] [2020-09-25 14:34:03,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:03,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:03,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:03,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:03,820 INFO L87 Difference]: Start difference. First operand 12075 states and 15146 transitions. Second operand 3 states. [2020-09-25 14:34:03,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:03,968 INFO L93 Difference]: Finished difference Result 14255 states and 17708 transitions. [2020-09-25 14:34:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:03,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-25 14:34:03,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:03,995 INFO L225 Difference]: With dead ends: 14255 [2020-09-25 14:34:03,995 INFO L226 Difference]: Without dead ends: 14253 [2020-09-25 14:34:04,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14253 states. [2020-09-25 14:34:04,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14253 to 12075. [2020-09-25 14:34:04,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-09-25 14:34:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15018 transitions. [2020-09-25 14:34:04,274 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15018 transitions. Word has length 74 [2020-09-25 14:34:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:04,274 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15018 transitions. [2020-09-25 14:34:04,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:04,274 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15018 transitions. [2020-09-25 14:34:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 14:34:04,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:04,283 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] [2020-09-25 14:34:04,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 14:34:04,283 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:04,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1847607922, now seen corresponding path program 1 times [2020-09-25 14:34:04,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:04,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984411126] [2020-09-25 14:34:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:04,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:04,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:04,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 14:34:04,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:04,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 14:34:04,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:04,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:04,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:04,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 14:34:04,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:34:04,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:04,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:04,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:04,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:04,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:04,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:04,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:34:04,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:04,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:04,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:04,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:04,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984411126] [2020-09-25 14:34:04,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:04,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:04,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335093616] [2020-09-25 14:34:04,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:04,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:04,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:04,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:04,379 INFO L87 Difference]: Start difference. First operand 12075 states and 15018 transitions. Second operand 3 states. [2020-09-25 14:34:04,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:04,486 INFO L93 Difference]: Finished difference Result 14127 states and 17324 transitions. [2020-09-25 14:34:04,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:04,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-09-25 14:34:04,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:04,512 INFO L225 Difference]: With dead ends: 14127 [2020-09-25 14:34:04,512 INFO L226 Difference]: Without dead ends: 14125 [2020-09-25 14:34:04,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:04,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14125 states. [2020-09-25 14:34:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14125 to 12075. [2020-09-25 14:34:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-09-25 14:34:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 14890 transitions. [2020-09-25 14:34:04,806 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 14890 transitions. Word has length 75 [2020-09-25 14:34:04,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:04,806 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 14890 transitions. [2020-09-25 14:34:04,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:04,806 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 14890 transitions. [2020-09-25 14:34:04,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 14:34:04,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:04,814 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] [2020-09-25 14:34:04,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 14:34:04,814 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:04,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:04,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1321782988, now seen corresponding path program 1 times [2020-09-25 14:34:04,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:04,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297204993] [2020-09-25 14:34:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:04,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:04,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:04,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 14:34:04,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:04,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 14:34:04,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:04,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:04,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:04,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 14:34:04,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:34:04,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:04,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:04,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:04,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:04,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:04,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:04,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:04,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:04,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:04,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:04,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:04,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:04,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:04,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:04,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297204993] [2020-09-25 14:34:04,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:04,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:04,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659594824] [2020-09-25 14:34:04,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:04,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:04,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:04,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:04,905 INFO L87 Difference]: Start difference. First operand 12075 states and 14890 transitions. Second operand 3 states. [2020-09-25 14:34:05,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:05,075 INFO L93 Difference]: Finished difference Result 35373 states and 43563 transitions. [2020-09-25 14:34:05,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:05,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-09-25 14:34:05,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:05,096 INFO L225 Difference]: With dead ends: 35373 [2020-09-25 14:34:05,097 INFO L226 Difference]: Without dead ends: 12075 [2020-09-25 14:34:05,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:05,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12075 states. [2020-09-25 14:34:05,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12075 to 12075. [2020-09-25 14:34:05,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-09-25 14:34:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 14378 transitions. [2020-09-25 14:34:05,428 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 14378 transitions. Word has length 75 [2020-09-25 14:34:05,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:05,429 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 14378 transitions. [2020-09-25 14:34:05,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 14378 transitions. [2020-09-25 14:34:05,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-25 14:34:05,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:05,437 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] [2020-09-25 14:34:05,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 14:34:05,437 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:05,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:05,437 INFO L82 PathProgramCache]: Analyzing trace with hash -2093741743, now seen corresponding path program 1 times [2020-09-25 14:34:05,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:05,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090163038] [2020-09-25 14:34:05,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:05,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:05,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:05,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 14:34:05,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:05,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 14:34:05,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:05,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:05,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:05,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 14:34:05,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:34:05,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:05,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:05,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:05,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:05,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:05,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:05,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:05,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:34:05,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090163038] [2020-09-25 14:34:05,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:05,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:05,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045225792] [2020-09-25 14:34:05,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:05,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:05,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:05,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:05,523 INFO L87 Difference]: Start difference. First operand 12075 states and 14378 transitions. Second operand 3 states. [2020-09-25 14:34:05,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:05,587 INFO L93 Difference]: Finished difference Result 12075 states and 14378 transitions. [2020-09-25 14:34:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:05,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-09-25 14:34:05,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:05,588 INFO L225 Difference]: With dead ends: 12075 [2020-09-25 14:34:05,588 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:34:05,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:34:05,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:34:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:34:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:34:05,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-09-25 14:34:05,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:05,606 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:34:05,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:05,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:34:05,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:34:05,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 14:34:05,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:34:05,637 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 14:34:05,638 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:34:05,638 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:34:05,638 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 14:34:05,638 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 14:34:05,638 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 14:34:05,638 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 149) no Hoare annotation was computed. [2020-09-25 14:34:05,638 INFO L268 CegarLoopResult]: For program point L85-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,638 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 14:34:05,639 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-25 14:34:05,639 INFO L268 CegarLoopResult]: For program point L69-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,639 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-25 14:34:05,639 INFO L268 CegarLoopResult]: For program point L119-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,639 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-25 14:34:05,639 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-25 14:34:05,639 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-25 14:34:05,640 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 14:34:05,640 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-09-25 14:34:05,640 INFO L268 CegarLoopResult]: For program point L37-2(line 37) no Hoare annotation was computed. [2020-09-25 14:34:05,640 INFO L268 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-09-25 14:34:05,640 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 14:34:05,640 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 14:34:05,640 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 14:34:05,640 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 149) no Hoare annotation was computed. [2020-09-25 14:34:05,641 INFO L268 CegarLoopResult]: For program point L104-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,641 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-09-25 14:34:05,641 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-25 14:34:05,641 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-25 14:34:05,641 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 14:34:05,641 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-09-25 14:34:05,641 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 14:34:05,641 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 14:34:05,642 INFO L268 CegarLoopResult]: For program point L89-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,642 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-25 14:34:05,642 INFO L271 CegarLoopResult]: At program point L139-1(lines 36 144) the Hoare annotation is: true [2020-09-25 14:34:05,642 INFO L268 CegarLoopResult]: For program point L73-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,642 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 14:34:05,642 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-09-25 14:34:05,642 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 14:34:05,643 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 14:34:05,643 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 14:34:05,643 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 14:34:05,643 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-25 14:34:05,643 INFO L264 CegarLoopResult]: At program point L140-1(lines 5 149) the Hoare annotation is: false [2020-09-25 14:34:05,643 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-25 14:34:05,643 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 14:34:05,644 INFO L268 CegarLoopResult]: For program point L124-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,644 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 14:34:05,644 INFO L268 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-09-25 14:34:05,644 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 14:34:05,644 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 14:34:05,644 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 14:34:05,644 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-25 14:34:05,644 INFO L268 CegarLoopResult]: For program point L109-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,645 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 14:34:05,645 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 14:34:05,645 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 14:34:05,645 INFO L268 CegarLoopResult]: For program point L93-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,645 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 14:34:05,645 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 14:34:05,645 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 14:34:05,646 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-25 14:34:05,646 INFO L268 CegarLoopResult]: For program point L77-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,646 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-25 14:34:05,646 INFO L268 CegarLoopResult]: For program point L61(lines 61 63) no Hoare annotation was computed. [2020-09-25 14:34:05,646 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 14:34:05,646 INFO L268 CegarLoopResult]: For program point L61-2(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,646 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-25 14:34:05,646 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-25 14:34:05,647 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 14:34:05,647 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 14:34:05,647 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 14:34:05,647 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 14:34:05,647 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-25 14:34:05,647 INFO L271 CegarLoopResult]: At program point L145(lines 5 149) the Hoare annotation is: true [2020-09-25 14:34:05,647 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 14:34:05,648 INFO L268 CegarLoopResult]: For program point L129-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,648 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2020-09-25 14:34:05,648 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 14:34:05,648 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 149) the Hoare annotation is: true [2020-09-25 14:34:05,648 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 14:34:05,648 INFO L268 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-09-25 14:34:05,649 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-25 14:34:05,649 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-25 14:34:05,649 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 14:34:05,649 INFO L268 CegarLoopResult]: For program point L114-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,649 INFO L268 CegarLoopResult]: For program point L81-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,649 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 14:34:05,649 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 14:34:05,649 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 14:34:05,650 INFO L268 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-09-25 14:34:05,650 INFO L268 CegarLoopResult]: For program point L65-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,650 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-25 14:34:05,650 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-25 14:34:05,650 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-25 14:34:05,650 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-25 14:34:05,650 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 14:34:05,650 INFO L268 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-09-25 14:34:05,651 INFO L268 CegarLoopResult]: For program point L99-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,651 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 14:34:05,651 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-25 14:34:05,651 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 14:34:05,651 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 14:34:05,651 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 14:34:05,651 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 14:34:05,652 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 14:34:05,652 INFO L268 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-09-25 14:34:05,652 INFO L268 CegarLoopResult]: For program point L134-1(lines 36 144) no Hoare annotation was computed. [2020-09-25 14:34:05,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:34:05 BoogieIcfgContainer [2020-09-25 14:34:05,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:34:05,669 INFO L168 Benchmark]: Toolchain (without parser) took 7292.19 ms. Allocated memory was 140.5 MB in the beginning and 416.8 MB in the end (delta: 276.3 MB). Free memory was 103.6 MB in the beginning and 178.0 MB in the end (delta: -74.3 MB). Peak memory consumption was 202.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:05,670 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-25 14:34:05,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.65 ms. Allocated memory is still 140.5 MB. Free memory was 103.2 MB in the beginning and 92.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:05,672 INFO L168 Benchmark]: Boogie Preprocessor took 124.44 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 180.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:05,672 INFO L168 Benchmark]: RCFGBuilder took 473.92 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 158.0 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:05,673 INFO L168 Benchmark]: TraceAbstraction took 6341.17 ms. Allocated memory was 203.4 MB in the beginning and 416.8 MB in the end (delta: 213.4 MB). Free memory was 157.1 MB in the beginning and 178.0 MB in the end (delta: -20.9 MB). Peak memory consumption was 192.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:05,676 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 325.65 ms. Allocated memory is still 140.5 MB. Free memory was 103.2 MB in the beginning and 92.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.44 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 180.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 473.92 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 158.0 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6341.17 ms. Allocated memory was 203.4 MB in the beginning and 416.8 MB in the end (delta: 213.4 MB). Free memory was 157.1 MB in the beginning and 178.0 MB in the end (delta: -20.9 MB). Peak memory consumption was 192.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 147]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2944 SDtfs, 1068 SDslu, 2096 SDs, 0 SdLazy, 89 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12075occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 18 MinimizatonAttempts, 5630 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 521 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1287 NumberOfCodeBlocks, 1287 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1269 ConstructedInterpolants, 0 QuantifiedInterpolants, 113709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...