/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/psyco/psyco_io_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:47:00,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:47:00,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:47:00,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:47:00,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:47:00,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:47:00,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:47:00,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:47:00,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:47:00,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:47:00,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:47:00,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:47:00,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:47:00,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:47:00,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:47:00,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:47:00,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:47:00,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:47:00,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:47:00,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:47:00,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:47:00,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:47:00,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:47:00,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:47:00,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:47:00,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:47:00,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:47:00,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:47:00,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:47:00,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:47:00,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:47:00,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:47:00,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:47:00,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:47:00,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:47:00,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:47:00,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:47:00,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:47:00,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:47:00,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:47:00,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:47:00,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:47:00,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:47:00,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:47:00,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:47:00,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:47:00,979 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:47:00,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:47:00,979 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:47:00,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:47:00,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:47:00,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:47:00,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:47:00,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:47:00,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:47:00,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:47:00,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:47:00,982 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:47:00,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:47:00,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:47:00,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:47:00,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:47:00,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:47:00,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:47:00,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:47:00,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:47:00,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:47:00,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:47:00,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:47:00,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:47:00,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:47:00,984 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:47:01,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:47:01,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:47:01,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:47:01,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:47:01,500 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:47:01,501 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_io_1.c [2020-09-24 21:47:01,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10064c245/698264581bc849aca32e757558d45f6c/FLAG11732b2d2 [2020-09-24 21:47:02,172 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:47:02,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_io_1.c [2020-09-24 21:47:02,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10064c245/698264581bc849aca32e757558d45f6c/FLAG11732b2d2 [2020-09-24 21:47:02,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10064c245/698264581bc849aca32e757558d45f6c [2020-09-24 21:47:02,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:47:02,493 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:47:02,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:47:02,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:47:02,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:47:02,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:47:02" (1/1) ... [2020-09-24 21:47:02,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19cf7fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02, skipping insertion in model container [2020-09-24 21:47:02,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:47:02" (1/1) ... [2020-09-24 21:47:02,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:47:02,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:47:02,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:47:02,866 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:47:02,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:47:02,925 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:47:02,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02 WrapperNode [2020-09-24 21:47:02,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:47:02,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:47:02,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:47:02,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:47:03,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02" (1/1) ... [2020-09-24 21:47:03,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02" (1/1) ... [2020-09-24 21:47:03,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02" (1/1) ... [2020-09-24 21:47:03,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02" (1/1) ... [2020-09-24 21:47:03,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02" (1/1) ... [2020-09-24 21:47:03,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02" (1/1) ... [2020-09-24 21:47:03,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02" (1/1) ... [2020-09-24 21:47:03,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:47:03,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:47:03,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:47:03,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:47:03,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:47:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:47:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:47:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:47:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:47:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:47:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:47:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:47:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:47:03,743 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:47:03,744 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:47:03,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:47:03 BoogieIcfgContainer [2020-09-24 21:47:03,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:47:03,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:47:03,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:47:03,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:47:03,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:47:02" (1/3) ... [2020-09-24 21:47:03,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3baa4608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:47:03, skipping insertion in model container [2020-09-24 21:47:03,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:47:02" (2/3) ... [2020-09-24 21:47:03,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3baa4608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:47:03, skipping insertion in model container [2020-09-24 21:47:03,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:47:03" (3/3) ... [2020-09-24 21:47:03,776 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_io_1.c [2020-09-24 21:47:03,789 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:47:03,804 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:47:03,828 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:47:03,876 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:47:03,876 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:47:03,877 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:47:03,877 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:47:03,878 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:47:03,878 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:47:03,878 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:47:03,879 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:47:03,914 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2020-09-24 21:47:03,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 21:47:03,928 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:47:03,930 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] [2020-09-24 21:47:03,930 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:47:03,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:47:03,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1735850516, now seen corresponding path program 1 times [2020-09-24 21:47:03,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:47:03,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954176611] [2020-09-24 21:47:03,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:47:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:04,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:04,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:04,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 21:47:04,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:04,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 21:47:04,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:47:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-24 21:47:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:47:04,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:47:04,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:47:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:04,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:04,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:04,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:47:04,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 21:47:04,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:47:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:47:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:47:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:47:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:47:04,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954176611] [2020-09-24 21:47:04,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:47:04,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:47:04,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245396246] [2020-09-24 21:47:04,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:47:04,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:47:04,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:47:04,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:47:04,420 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 3 states. [2020-09-24 21:47:04,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:47:04,559 INFO L93 Difference]: Finished difference Result 368 states and 482 transitions. [2020-09-24 21:47:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:47:04,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-09-24 21:47:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:47:04,595 INFO L225 Difference]: With dead ends: 368 [2020-09-24 21:47:04,595 INFO L226 Difference]: Without dead ends: 163 [2020-09-24 21:47:04,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:47:04,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-09-24 21:47:04,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-09-24 21:47:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-09-24 21:47:04,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 193 transitions. [2020-09-24 21:47:04,683 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 193 transitions. Word has length 35 [2020-09-24 21:47:04,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:47:04,683 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 193 transitions. [2020-09-24 21:47:04,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:47:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 193 transitions. [2020-09-24 21:47:04,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-24 21:47:04,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:47:04,686 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] [2020-09-24 21:47:04,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:47:04,686 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:47:04,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:47:04,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1081886035, now seen corresponding path program 1 times [2020-09-24 21:47:04,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:47:04,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057120764] [2020-09-24 21:47:04,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:47:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:04,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:04,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:04,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:05,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:05,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:47:05,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:47:05,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-24 21:47:05,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:47:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-24 21:47:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:47:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:47:05,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:47:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:05,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:05,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:05,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:47:05,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:05,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:47:05,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:47:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:47:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:47:05,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:47:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:47:05,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057120764] [2020-09-24 21:47:05,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:47:05,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:47:05,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637274126] [2020-09-24 21:47:05,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:47:05,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:47:05,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:47:05,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:47:05,133 INFO L87 Difference]: Start difference. First operand 163 states and 193 transitions. Second operand 4 states. [2020-09-24 21:47:05,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:47:05,504 INFO L93 Difference]: Finished difference Result 327 states and 388 transitions. [2020-09-24 21:47:05,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:47:05,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-24 21:47:05,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:47:05,507 INFO L225 Difference]: With dead ends: 327 [2020-09-24 21:47:05,508 INFO L226 Difference]: Without dead ends: 178 [2020-09-24 21:47:05,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:47:05,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-24 21:47:05,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-09-24 21:47:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-24 21:47:05,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 208 transitions. [2020-09-24 21:47:05,525 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 208 transitions. Word has length 36 [2020-09-24 21:47:05,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:47:05,526 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 208 transitions. [2020-09-24 21:47:05,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:47:05,526 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 208 transitions. [2020-09-24 21:47:05,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 21:47:05,528 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:47:05,529 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:47:05,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:47:05,529 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:47:05,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:47:05,530 INFO L82 PathProgramCache]: Analyzing trace with hash 989236732, now seen corresponding path program 1 times [2020-09-24 21:47:05,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:47:05,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810520909] [2020-09-24 21:47:05,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:47:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:05,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:05,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:05,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:05,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:47:05,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:47:05,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-24 21:47:05,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:05,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:47:05,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-24 21:47:05,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:47:05,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:47:05,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:47:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:05,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:05,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:05,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:47:05,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:05,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:47:05,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:47:05,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:47:05,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:47:05,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:47:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:47:05,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810520909] [2020-09-24 21:47:05,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:47:05,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:47:05,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072642061] [2020-09-24 21:47:05,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:47:05,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:47:05,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:47:05,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:47:05,792 INFO L87 Difference]: Start difference. First operand 178 states and 208 transitions. Second operand 4 states. [2020-09-24 21:47:05,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:47:05,925 INFO L93 Difference]: Finished difference Result 323 states and 379 transitions. [2020-09-24 21:47:05,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:47:05,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-24 21:47:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:47:05,928 INFO L225 Difference]: With dead ends: 323 [2020-09-24 21:47:05,931 INFO L226 Difference]: Without dead ends: 160 [2020-09-24 21:47:05,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:47:05,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-24 21:47:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-09-24 21:47:05,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-09-24 21:47:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 184 transitions. [2020-09-24 21:47:05,962 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 184 transitions. Word has length 58 [2020-09-24 21:47:05,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:47:05,965 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 184 transitions. [2020-09-24 21:47:05,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:47:05,966 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 184 transitions. [2020-09-24 21:47:05,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-24 21:47:05,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:47:05,970 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:47:05,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:47:05,973 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:47:05,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:47:05,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1364131535, now seen corresponding path program 1 times [2020-09-24 21:47:05,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:47:05,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39353985] [2020-09-24 21:47:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:47:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:06,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:06,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:06,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 21:47:06,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:06,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 21:47:06,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:47:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-24 21:47:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 21:47:06,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:47:06,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:47:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:06,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:06,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:06,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:47:06,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:47:06,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:47:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:47:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:47:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:47:06,167 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:47:06,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39353985] [2020-09-24 21:47:06,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:47:06,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:47:06,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497286536] [2020-09-24 21:47:06,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:47:06,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:47:06,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:47:06,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:47:06,170 INFO L87 Difference]: Start difference. First operand 160 states and 184 transitions. Second operand 4 states. [2020-09-24 21:47:06,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:47:06,476 INFO L93 Difference]: Finished difference Result 380 states and 450 transitions. [2020-09-24 21:47:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:47:06,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2020-09-24 21:47:06,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:47:06,480 INFO L225 Difference]: With dead ends: 380 [2020-09-24 21:47:06,480 INFO L226 Difference]: Without dead ends: 255 [2020-09-24 21:47:06,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:47:06,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-24 21:47:06,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 249. [2020-09-24 21:47:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 21:47:06,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 290 transitions. [2020-09-24 21:47:06,496 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 290 transitions. Word has length 71 [2020-09-24 21:47:06,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:47:06,497 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 290 transitions. [2020-09-24 21:47:06,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:47:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 290 transitions. [2020-09-24 21:47:06,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 21:47:06,499 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:47:06,499 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:47:06,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:47:06,499 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:47:06,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:47:06,500 INFO L82 PathProgramCache]: Analyzing trace with hash -2059109809, now seen corresponding path program 1 times [2020-09-24 21:47:06,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:47:06,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709097253] [2020-09-24 21:47:06,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:47:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:06,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:06,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:06,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:06,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:47:06,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:47:06,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 21:47:06,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:47:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-24 21:47:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:47:06,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:47:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:47:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:06,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:06,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:06,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:47:06,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:06,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:47:06,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:06,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:47:06,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:47:06,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:47:06,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:47:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:47:06,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709097253] [2020-09-24 21:47:06,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:47:06,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:47:06,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567695502] [2020-09-24 21:47:06,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:47:06,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:47:06,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:47:06,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:47:06,718 INFO L87 Difference]: Start difference. First operand 249 states and 290 transitions. Second operand 4 states. [2020-09-24 21:47:07,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:47:07,007 INFO L93 Difference]: Finished difference Result 494 states and 576 transitions. [2020-09-24 21:47:07,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:47:07,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-09-24 21:47:07,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:47:07,011 INFO L225 Difference]: With dead ends: 494 [2020-09-24 21:47:07,011 INFO L226 Difference]: Without dead ends: 283 [2020-09-24 21:47:07,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:47:07,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-24 21:47:07,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2020-09-24 21:47:07,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-24 21:47:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 322 transitions. [2020-09-24 21:47:07,044 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 322 transitions. Word has length 72 [2020-09-24 21:47:07,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:47:07,045 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 322 transitions. [2020-09-24 21:47:07,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:47:07,045 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 322 transitions. [2020-09-24 21:47:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-24 21:47:07,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:47:07,051 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:47:07,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:47:07,052 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:47:07,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:47:07,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1063922455, now seen corresponding path program 1 times [2020-09-24 21:47:07,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:47:07,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888340682] [2020-09-24 21:47:07,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:47:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:07,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:07,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:07,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-24 21:47:07,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:07,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 21:47:07,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:47:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:47:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:47:07,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:47:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:47:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:07,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:07,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:07,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:47:07,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:07,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:47:07,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:47:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:47:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:47:07,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:47:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-24 21:47:07,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888340682] [2020-09-24 21:47:07,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:47:07,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:47:07,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913248916] [2020-09-24 21:47:07,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:47:07,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:47:07,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:47:07,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:47:07,299 INFO L87 Difference]: Start difference. First operand 281 states and 322 transitions. Second operand 4 states. [2020-09-24 21:47:07,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:47:07,500 INFO L93 Difference]: Finished difference Result 460 states and 530 transitions. [2020-09-24 21:47:07,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:47:07,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-09-24 21:47:07,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:47:07,505 INFO L225 Difference]: With dead ends: 460 [2020-09-24 21:47:07,510 INFO L226 Difference]: Without dead ends: 217 [2020-09-24 21:47:07,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:47:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-24 21:47:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-24 21:47:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-24 21:47:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 245 transitions. [2020-09-24 21:47:07,526 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 245 transitions. Word has length 111 [2020-09-24 21:47:07,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:47:07,529 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 245 transitions. [2020-09-24 21:47:07,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:47:07,529 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 245 transitions. [2020-09-24 21:47:07,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-24 21:47:07,540 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:47:07,540 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:47:07,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:47:07,541 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:47:07,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:47:07,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1519310599, now seen corresponding path program 1 times [2020-09-24 21:47:07,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:47:07,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910366689] [2020-09-24 21:47:07,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:47:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:07,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:07,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:07,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 21:47:07,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:07,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 21:47:07,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:07,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:47:07,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:47:07,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 21:47:07,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:47:07,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:47:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:47:07,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:47:07,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:47:07,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:47:07,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:47:07,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:47:07,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:47:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:47:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:47:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:47:07,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:47:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-24 21:47:07,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910366689] [2020-09-24 21:47:07,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:47:07,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:47:07,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719066845] [2020-09-24 21:47:07,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:47:07,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:47:07,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:47:07,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:47:07,838 INFO L87 Difference]: Start difference. First operand 217 states and 245 transitions. Second operand 5 states. [2020-09-24 21:47:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:47:08,271 INFO L93 Difference]: Finished difference Result 225 states and 253 transitions. [2020-09-24 21:47:08,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:47:08,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-09-24 21:47:08,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:47:08,272 INFO L225 Difference]: With dead ends: 225 [2020-09-24 21:47:08,272 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:47:08,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:47:08,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:47:08,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:47:08,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:47:08,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:47:08,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2020-09-24 21:47:08,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:47:08,274 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:47:08,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:47:08,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:47:08,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:47:08,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 21:47:08,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:47:08,516 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:47:08,516 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 21:47:08,516 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_connect_2~0 |old(~m_connect_2~0)|) (= ~m_connect_1~0 |old(~m_connect_1~0)|) (= ~m_flush~0 |old(~m_flush~0)|) (= ~m_PipedOutputStream~0 |old(~m_PipedOutputStream~0)|) (= ~m_write~0 |old(~m_write~0)|) (= ~m_close~0 |old(~m_close~0)|)) [2020-09-24 21:47:08,516 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-24 21:47:08,516 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 21:47:08,517 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-24 21:47:08,517 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-24 21:47:08,517 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:47:08,517 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:47:08,517 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 21:47:08,517 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:47:08,517 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:47:08,518 INFO L268 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-09-24 21:47:08,518 INFO L268 CegarLoopResult]: For program point L250-1(line 250) no Hoare annotation was computed. [2020-09-24 21:47:08,518 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 344) no Hoare annotation was computed. [2020-09-24 21:47:08,518 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-24 21:47:08,518 INFO L268 CegarLoopResult]: For program point L118-1(line 118) no Hoare annotation was computed. [2020-09-24 21:47:08,518 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 21:47:08,519 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-24 21:47:08,519 INFO L268 CegarLoopResult]: For program point L234-1(line 234) no Hoare annotation was computed. [2020-09-24 21:47:08,519 INFO L268 CegarLoopResult]: For program point L36(lines 36 47) no Hoare annotation was computed. [2020-09-24 21:47:08,519 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-24 21:47:08,519 INFO L268 CegarLoopResult]: For program point L53(lines 53 104) no Hoare annotation was computed. [2020-09-24 21:47:08,519 INFO L268 CegarLoopResult]: For program point L86-1(lines 86 101) no Hoare annotation was computed. [2020-09-24 21:47:08,519 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 21:47:08,520 INFO L268 CegarLoopResult]: For program point L86-2(line 86) no Hoare annotation was computed. [2020-09-24 21:47:08,520 INFO L268 CegarLoopResult]: For program point L86-3(line 86) no Hoare annotation was computed. [2020-09-24 21:47:08,520 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-24 21:47:08,520 INFO L268 CegarLoopResult]: For program point L202-1(lines 202 217) no Hoare annotation was computed. [2020-09-24 21:47:08,520 INFO L268 CegarLoopResult]: For program point L202-2(line 202) no Hoare annotation was computed. [2020-09-24 21:47:08,520 INFO L268 CegarLoopResult]: For program point L202-3(line 202) no Hoare annotation was computed. [2020-09-24 21:47:08,520 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-24 21:47:08,521 INFO L268 CegarLoopResult]: For program point L70-1(lines 70 85) no Hoare annotation was computed. [2020-09-24 21:47:08,521 INFO L268 CegarLoopResult]: For program point L70-2(line 70) no Hoare annotation was computed. [2020-09-24 21:47:08,521 INFO L268 CegarLoopResult]: For program point L70-3(line 70) no Hoare annotation was computed. [2020-09-24 21:47:08,521 INFO L268 CegarLoopResult]: For program point L318(line 318) no Hoare annotation was computed. [2020-09-24 21:47:08,521 INFO L268 CegarLoopResult]: For program point L318-1(lines 318 333) no Hoare annotation was computed. [2020-09-24 21:47:08,521 INFO L268 CegarLoopResult]: For program point L318-2(line 318) no Hoare annotation was computed. [2020-09-24 21:47:08,521 INFO L268 CegarLoopResult]: For program point L318-3(line 318) no Hoare annotation was computed. [2020-09-24 21:47:08,522 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-24 21:47:08,522 INFO L268 CegarLoopResult]: For program point L186-1(lines 186 201) no Hoare annotation was computed. [2020-09-24 21:47:08,522 INFO L268 CegarLoopResult]: For program point L186-2(line 186) no Hoare annotation was computed. [2020-09-24 21:47:08,522 INFO L268 CegarLoopResult]: For program point L186-3(line 186) no Hoare annotation was computed. [2020-09-24 21:47:08,522 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 21:47:08,522 INFO L268 CegarLoopResult]: For program point L54-1(lines 54 69) no Hoare annotation was computed. [2020-09-24 21:47:08,522 INFO L268 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-09-24 21:47:08,523 INFO L268 CegarLoopResult]: For program point L54-3(line 54) no Hoare annotation was computed. [2020-09-24 21:47:08,523 INFO L264 CegarLoopResult]: At program point L335(lines 23 339) the Hoare annotation is: (let ((.cse0 (= main_~this_sink~0 0))) (or (and .cse0 (= main_~q~0 2)) (and (= main_~q~0 0) .cse0) (and (<= 3 main_~q~0) (or (<= (+ main_~this_sink~0 1) 0) (<= 1 main_~this_sink~0))))) [2020-09-24 21:47:08,523 INFO L268 CegarLoopResult]: For program point L302(line 302) no Hoare annotation was computed. [2020-09-24 21:47:08,523 INFO L268 CegarLoopResult]: For program point L302-1(lines 302 317) no Hoare annotation was computed. [2020-09-24 21:47:08,523 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 344) no Hoare annotation was computed. [2020-09-24 21:47:08,523 INFO L268 CegarLoopResult]: For program point L302-2(line 302) no Hoare annotation was computed. [2020-09-24 21:47:08,524 INFO L268 CegarLoopResult]: For program point L302-3(line 302) no Hoare annotation was computed. [2020-09-24 21:47:08,524 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-24 21:47:08,524 INFO L268 CegarLoopResult]: For program point L170-1(lines 170 185) no Hoare annotation was computed. [2020-09-24 21:47:08,524 INFO L268 CegarLoopResult]: For program point L170-2(line 170) no Hoare annotation was computed. [2020-09-24 21:47:08,524 INFO L268 CegarLoopResult]: For program point L170-3(line 170) no Hoare annotation was computed. [2020-09-24 21:47:08,524 INFO L268 CegarLoopResult]: For program point L286(line 286) no Hoare annotation was computed. [2020-09-24 21:47:08,525 INFO L268 CegarLoopResult]: For program point L286-1(lines 286 301) no Hoare annotation was computed. [2020-09-24 21:47:08,525 INFO L268 CegarLoopResult]: For program point L286-2(line 286) no Hoare annotation was computed. [2020-09-24 21:47:08,525 INFO L268 CegarLoopResult]: For program point L286-3(line 286) no Hoare annotation was computed. [2020-09-24 21:47:08,525 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-24 21:47:08,525 INFO L268 CegarLoopResult]: For program point L154-1(lines 154 169) no Hoare annotation was computed. [2020-09-24 21:47:08,525 INFO L268 CegarLoopResult]: For program point L88(lines 88 99) no Hoare annotation was computed. [2020-09-24 21:47:08,525 INFO L268 CegarLoopResult]: For program point L154-2(line 154) no Hoare annotation was computed. [2020-09-24 21:47:08,526 INFO L268 CegarLoopResult]: For program point L154-3(line 154) no Hoare annotation was computed. [2020-09-24 21:47:08,526 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-09-24 21:47:08,526 INFO L268 CegarLoopResult]: For program point L270-1(lines 270 285) no Hoare annotation was computed. [2020-09-24 21:47:08,526 INFO L268 CegarLoopResult]: For program point L204(lines 204 215) no Hoare annotation was computed. [2020-09-24 21:47:08,526 INFO L268 CegarLoopResult]: For program point L270-2(line 270) no Hoare annotation was computed. [2020-09-24 21:47:08,526 INFO L268 CegarLoopResult]: For program point L270-3(line 270) no Hoare annotation was computed. [2020-09-24 21:47:08,527 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-24 21:47:08,527 INFO L268 CegarLoopResult]: For program point L105(lines 105 220) no Hoare annotation was computed. [2020-09-24 21:47:08,527 INFO L268 CegarLoopResult]: For program point L138-1(lines 138 153) no Hoare annotation was computed. [2020-09-24 21:47:08,527 INFO L268 CegarLoopResult]: For program point L72(lines 72 83) no Hoare annotation was computed. [2020-09-24 21:47:08,527 INFO L268 CegarLoopResult]: For program point L138-2(line 138) no Hoare annotation was computed. [2020-09-24 21:47:08,527 INFO L268 CegarLoopResult]: For program point L138-3(line 138) no Hoare annotation was computed. [2020-09-24 21:47:08,527 INFO L268 CegarLoopResult]: For program point L320(lines 320 331) no Hoare annotation was computed. [2020-09-24 21:47:08,528 INFO L268 CegarLoopResult]: For program point L254(line 254) no Hoare annotation was computed. [2020-09-24 21:47:08,528 INFO L268 CegarLoopResult]: For program point L221(lines 221 336) no Hoare annotation was computed. [2020-09-24 21:47:08,528 INFO L268 CegarLoopResult]: For program point L254-1(lines 254 269) no Hoare annotation was computed. [2020-09-24 21:47:08,528 INFO L268 CegarLoopResult]: For program point L188(lines 188 199) no Hoare annotation was computed. [2020-09-24 21:47:08,528 INFO L268 CegarLoopResult]: For program point L254-2(line 254) no Hoare annotation was computed. [2020-09-24 21:47:08,528 INFO L268 CegarLoopResult]: For program point L254-3(line 254) no Hoare annotation was computed. [2020-09-24 21:47:08,528 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-09-24 21:47:08,528 INFO L268 CegarLoopResult]: For program point L122-1(lines 122 137) no Hoare annotation was computed. [2020-09-24 21:47:08,529 INFO L268 CegarLoopResult]: For program point L56(lines 56 67) no Hoare annotation was computed. [2020-09-24 21:47:08,529 INFO L268 CegarLoopResult]: For program point L122-2(line 122) no Hoare annotation was computed. [2020-09-24 21:47:08,529 INFO L268 CegarLoopResult]: For program point L122-3(line 122) no Hoare annotation was computed. [2020-09-24 21:47:08,529 INFO L264 CegarLoopResult]: At program point L23-2(lines 23 339) the Hoare annotation is: (or (and (= main_~q~0 0) (= main_~this_sink~0 0)) (and (<= 3 main_~q~0) (or (<= (+ main_~this_sink~0 1) 0) (<= 1 main_~this_sink~0)))) [2020-09-24 21:47:08,529 INFO L268 CegarLoopResult]: For program point L23-3(lines 23 339) no Hoare annotation was computed. [2020-09-24 21:47:08,529 INFO L268 CegarLoopResult]: For program point L304(lines 304 315) no Hoare annotation was computed. [2020-09-24 21:47:08,529 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-09-24 21:47:08,530 INFO L268 CegarLoopResult]: For program point L238-1(lines 238 253) no Hoare annotation was computed. [2020-09-24 21:47:08,530 INFO L268 CegarLoopResult]: For program point L172(lines 172 183) no Hoare annotation was computed. [2020-09-24 21:47:08,530 INFO L268 CegarLoopResult]: For program point L238-2(line 238) no Hoare annotation was computed. [2020-09-24 21:47:08,530 INFO L268 CegarLoopResult]: For program point L238-3(line 238) no Hoare annotation was computed. [2020-09-24 21:47:08,530 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 21:47:08,530 INFO L268 CegarLoopResult]: For program point L106-1(lines 106 121) no Hoare annotation was computed. [2020-09-24 21:47:08,531 INFO L268 CegarLoopResult]: For program point L40(lines 40 42) no Hoare annotation was computed. [2020-09-24 21:47:08,531 INFO L268 CegarLoopResult]: For program point L106-2(line 106) no Hoare annotation was computed. [2020-09-24 21:47:08,531 INFO L268 CegarLoopResult]: For program point L106-3(line 106) no Hoare annotation was computed. [2020-09-24 21:47:08,531 INFO L268 CegarLoopResult]: For program point L288(lines 288 299) no Hoare annotation was computed. [2020-09-24 21:47:08,531 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-24 21:47:08,531 INFO L268 CegarLoopResult]: For program point L222-1(lines 222 237) no Hoare annotation was computed. [2020-09-24 21:47:08,531 INFO L268 CegarLoopResult]: For program point L156(lines 156 167) no Hoare annotation was computed. [2020-09-24 21:47:08,532 INFO L268 CegarLoopResult]: For program point L222-2(line 222) no Hoare annotation was computed. [2020-09-24 21:47:08,532 INFO L268 CegarLoopResult]: For program point L222-3(line 222) no Hoare annotation was computed. [2020-09-24 21:47:08,532 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-09-24 21:47:08,532 INFO L268 CegarLoopResult]: For program point L272(lines 272 283) no Hoare annotation was computed. [2020-09-24 21:47:08,532 INFO L268 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-09-24 21:47:08,532 INFO L268 CegarLoopResult]: For program point L140(lines 140 151) no Hoare annotation was computed. [2020-09-24 21:47:08,532 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-24 21:47:08,533 INFO L268 CegarLoopResult]: For program point L322(line 322) no Hoare annotation was computed. [2020-09-24 21:47:08,533 INFO L268 CegarLoopResult]: For program point L256(lines 256 267) no Hoare annotation was computed. [2020-09-24 21:47:08,533 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-24 21:47:08,533 INFO L268 CegarLoopResult]: For program point L124(lines 124 135) no Hoare annotation was computed. [2020-09-24 21:47:08,533 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-09-24 21:47:08,533 INFO L268 CegarLoopResult]: For program point L240(lines 240 251) no Hoare annotation was computed. [2020-09-24 21:47:08,533 INFO L268 CegarLoopResult]: For program point L108(lines 108 119) no Hoare annotation was computed. [2020-09-24 21:47:08,534 INFO L268 CegarLoopResult]: For program point L224(lines 224 235) no Hoare annotation was computed. [2020-09-24 21:47:08,534 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-24 21:47:08,534 INFO L268 CegarLoopResult]: For program point L92(lines 92 94) no Hoare annotation was computed. [2020-09-24 21:47:08,534 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 21:47:08,534 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-09-24 21:47:08,534 INFO L268 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-09-24 21:47:08,535 INFO L268 CegarLoopResult]: For program point L274(line 274) no Hoare annotation was computed. [2020-09-24 21:47:08,535 INFO L268 CegarLoopResult]: For program point L208(lines 208 210) no Hoare annotation was computed. [2020-09-24 21:47:08,535 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-24 21:47:08,535 INFO L268 CegarLoopResult]: For program point L76(lines 76 78) no Hoare annotation was computed. [2020-09-24 21:47:08,535 INFO L268 CegarLoopResult]: For program point L324(lines 324 326) no Hoare annotation was computed. [2020-09-24 21:47:08,535 INFO L268 CegarLoopResult]: For program point L258(line 258) no Hoare annotation was computed. [2020-09-24 21:47:08,535 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-09-24 21:47:08,536 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-24 21:47:08,536 INFO L268 CegarLoopResult]: For program point L60(lines 60 62) no Hoare annotation was computed. [2020-09-24 21:47:08,536 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 21:47:08,536 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-24 21:47:08,536 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-24 21:47:08,536 INFO L268 CegarLoopResult]: For program point L308(lines 308 310) no Hoare annotation was computed. [2020-09-24 21:47:08,536 INFO L268 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-09-24 21:47:08,537 INFO L268 CegarLoopResult]: For program point L176(lines 176 178) no Hoare annotation was computed. [2020-09-24 21:47:08,537 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-24 21:47:08,537 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-24 21:47:08,539 INFO L264 CegarLoopResult]: At program point L325(lines 13 344) the Hoare annotation is: false [2020-09-24 21:47:08,539 INFO L268 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2020-09-24 21:47:08,539 INFO L268 CegarLoopResult]: For program point L226(line 226) no Hoare annotation was computed. [2020-09-24 21:47:08,539 INFO L268 CegarLoopResult]: For program point L160(lines 160 162) no Hoare annotation was computed. [2020-09-24 21:47:08,539 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 21:47:08,539 INFO L268 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-09-24 21:47:08,540 INFO L268 CegarLoopResult]: For program point L28-2(line 28) no Hoare annotation was computed. [2020-09-24 21:47:08,540 INFO L268 CegarLoopResult]: For program point L276(lines 276 278) no Hoare annotation was computed. [2020-09-24 21:47:08,540 INFO L268 CegarLoopResult]: For program point L144(lines 144 146) no Hoare annotation was computed. [2020-09-24 21:47:08,540 INFO L268 CegarLoopResult]: For program point L260(lines 260 262) no Hoare annotation was computed. [2020-09-24 21:47:08,540 INFO L268 CegarLoopResult]: For program point L128(lines 128 130) no Hoare annotation was computed. [2020-09-24 21:47:08,540 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 21:47:08,540 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-24 21:47:08,541 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-24 21:47:08,541 INFO L268 CegarLoopResult]: For program point L244(lines 244 246) no Hoare annotation was computed. [2020-09-24 21:47:08,541 INFO L268 CegarLoopResult]: For program point L112(lines 112 114) no Hoare annotation was computed. [2020-09-24 21:47:08,541 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 21:47:08,541 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-24 21:47:08,541 INFO L268 CegarLoopResult]: For program point L228(lines 228 230) no Hoare annotation was computed. [2020-09-24 21:47:08,541 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-24 21:47:08,542 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 343) no Hoare annotation was computed. [2020-09-24 21:47:08,542 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 344) the Hoare annotation is: true [2020-09-24 21:47:08,542 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-24 21:47:08,542 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-24 21:47:08,542 INFO L268 CegarLoopResult]: For program point L328(line 328) no Hoare annotation was computed. [2020-09-24 21:47:08,542 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-24 21:47:08,542 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-24 21:47:08,543 INFO L268 CegarLoopResult]: For program point L312(line 312) no Hoare annotation was computed. [2020-09-24 21:47:08,543 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-09-24 21:47:08,543 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-09-24 21:47:08,543 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-24 21:47:08,543 INFO L268 CegarLoopResult]: For program point L280(line 280) no Hoare annotation was computed. [2020-09-24 21:47:08,543 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-24 21:47:08,543 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 21:47:08,544 INFO L268 CegarLoopResult]: For program point L264(line 264) no Hoare annotation was computed. [2020-09-24 21:47:08,544 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-09-24 21:47:08,544 INFO L268 CegarLoopResult]: For program point L198-1(line 198) no Hoare annotation was computed. [2020-09-24 21:47:08,544 INFO L268 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-09-24 21:47:08,544 INFO L268 CegarLoopResult]: For program point L33(lines 33 52) no Hoare annotation was computed. [2020-09-24 21:47:08,544 INFO L268 CegarLoopResult]: For program point L248(line 248) no Hoare annotation was computed. [2020-09-24 21:47:08,544 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 21:47:08,545 INFO L268 CegarLoopResult]: For program point L298(line 298) no Hoare annotation was computed. [2020-09-24 21:47:08,545 INFO L268 CegarLoopResult]: For program point L298-1(line 298) no Hoare annotation was computed. [2020-09-24 21:47:08,545 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-24 21:47:08,545 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-24 21:47:08,545 INFO L268 CegarLoopResult]: For program point L166-1(line 166) no Hoare annotation was computed. [2020-09-24 21:47:08,545 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-24 21:47:08,545 INFO L268 CegarLoopResult]: For program point L34-1(lines 34 49) no Hoare annotation was computed. [2020-09-24 21:47:08,546 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-24 21:47:08,546 INFO L268 CegarLoopResult]: For program point L34-3(line 34) no Hoare annotation was computed. [2020-09-24 21:47:08,546 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-09-24 21:47:08,546 INFO L268 CegarLoopResult]: For program point L282-1(line 282) no Hoare annotation was computed. [2020-09-24 21:47:08,546 INFO L268 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-09-24 21:47:08,546 INFO L268 CegarLoopResult]: For program point L150-1(line 150) no Hoare annotation was computed. [2020-09-24 21:47:08,546 INFO L268 CegarLoopResult]: For program point L266(line 266) no Hoare annotation was computed. [2020-09-24 21:47:08,547 INFO L268 CegarLoopResult]: For program point L266-1(line 266) no Hoare annotation was computed. [2020-09-24 21:47:08,547 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 21:47:08,547 INFO L268 CegarLoopResult]: For program point L134-1(line 134) no Hoare annotation was computed. [2020-09-24 21:47:08,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:47:08 BoogieIcfgContainer [2020-09-24 21:47:08,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:47:08,573 INFO L168 Benchmark]: Toolchain (without parser) took 6082.21 ms. Allocated memory was 140.5 MB in the beginning and 281.0 MB in the end (delta: 140.5 MB). Free memory was 103.3 MB in the beginning and 148.0 MB in the end (delta: -44.7 MB). Peak memory consumption was 95.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:47:08,574 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-24 21:47:08,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.11 ms. Allocated memory is still 140.5 MB. Free memory was 102.7 MB in the beginning and 90.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:47:08,576 INFO L168 Benchmark]: Boogie Preprocessor took 137.40 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 90.3 MB in the beginning and 180.1 MB in the end (delta: -89.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:47:08,577 INFO L168 Benchmark]: RCFGBuilder took 695.05 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 143.7 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:47:08,578 INFO L168 Benchmark]: TraceAbstraction took 4807.33 ms. Allocated memory was 202.9 MB in the beginning and 281.0 MB in the end (delta: 78.1 MB). Free memory was 143.0 MB in the beginning and 148.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:47:08,582 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 432.11 ms. Allocated memory is still 140.5 MB. Free memory was 102.7 MB in the beginning and 90.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.40 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 90.3 MB in the beginning and 180.1 MB in the end (delta: -89.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 695.05 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 143.7 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4807.33 ms. Allocated memory was 202.9 MB in the beginning and 281.0 MB in the end (delta: 78.1 MB). Free memory was 143.0 MB in the beginning and 148.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 343]: 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: 23]: Loop Invariant Derived loop invariant: ((this_sink == 0 && q == 2) || (q == 0 && this_sink == 0)) || (3 <= q && (this_sink + 1 <= 0 || 1 <= this_sink)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (q == 0 && this_sink == 0) || (3 <= q && (this_sink + 1 <= 0 || 1 <= this_sink)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1253 SDtfs, 1672 SDslu, 85 SDs, 0 SdLazy, 805 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 14 NumberOfFragments, 72 HoareAnnotationTreeSize, 7 FomulaSimplifications, 80 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 117 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 495 NumberOfCodeBlocks, 495 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 97882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 144/144 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...