/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:57:00,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:57:00,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:57:00,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 22:57:00,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:57:00,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:57:00,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:57:00,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:57:00,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:57:00,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:57:00,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:57:00,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:57:00,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:57:00,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:57:00,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:57:00,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:57:00,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:57:00,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:57:00,843 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:57:00,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:57:00,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:57:00,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:57:00,844 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:57:00,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:57:00,845 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:57:00,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:57:00,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:57:00,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:57:00,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:57:00,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:57:00,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:57:00,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:57:00,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:57:00,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:57:00,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:57:00,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:57:00,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:57:00,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:57:00,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:57:00,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:57:00,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:57:00,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:57:00,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:57:00,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:57:00,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:00,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:57:00,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:57:00,849 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:57:01,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:57:01,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:57:01,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:57:01,138 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:57:01,138 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:57:01,139 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label53.c [2020-07-21 22:57:01,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f196473/2c487c90814d4fa29e28d3e75e0654f2/FLAGb534d05bd [2020-07-21 22:57:01,719 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:57:01,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label53.c [2020-07-21 22:57:01,733 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f196473/2c487c90814d4fa29e28d3e75e0654f2/FLAGb534d05bd [2020-07-21 22:57:02,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f196473/2c487c90814d4fa29e28d3e75e0654f2 [2020-07-21 22:57:02,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:57:02,024 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:57:02,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:57:02,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:57:02,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:57:02,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:57:02" (1/1) ... [2020-07-21 22:57:02,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6980433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02, skipping insertion in model container [2020-07-21 22:57:02,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:57:02" (1/1) ... [2020-07-21 22:57:02,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:57:02,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:57:02,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:57:02,691 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:57:02,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:57:02,831 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:57:02,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02 WrapperNode [2020-07-21 22:57:02,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:57:02,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:57:02,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:57:02,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:57:02,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02" (1/1) ... [2020-07-21 22:57:02,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02" (1/1) ... [2020-07-21 22:57:02,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02" (1/1) ... [2020-07-21 22:57:02,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02" (1/1) ... [2020-07-21 22:57:02,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02" (1/1) ... [2020-07-21 22:57:02,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02" (1/1) ... [2020-07-21 22:57:02,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02" (1/1) ... [2020-07-21 22:57:02,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:57:02,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:57:02,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:57:02,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:57:02,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 22:57:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:57:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:57:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:57:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:57:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:57:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:57:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:57:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:57:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:57:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:57:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:57:04,061 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:57:04,061 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:57:04,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:57:04 BoogieIcfgContainer [2020-07-21 22:57:04,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:57:04,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:57:04,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:57:04,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:57:04,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:57:02" (1/3) ... [2020-07-21 22:57:04,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f61b622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:57:04, skipping insertion in model container [2020-07-21 22:57:04,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:02" (2/3) ... [2020-07-21 22:57:04,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f61b622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:57:04, skipping insertion in model container [2020-07-21 22:57:04,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:57:04" (3/3) ... [2020-07-21 22:57:04,076 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label53.c [2020-07-21 22:57:04,086 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:57:04,094 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:57:04,109 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:57:04,137 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:57:04,137 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:57:04,138 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:57:04,138 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:57:04,138 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:57:04,139 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:57:04,139 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:57:04,139 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:57:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:57:04,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-21 22:57:04,178 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:04,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:04,180 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:04,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:04,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1422395146, now seen corresponding path program 1 times [2020-07-21 22:57:04,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:04,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725237072] [2020-07-21 22:57:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:04,414 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:04,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:04,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:57:04,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:04,990 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:57:05,016 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:57:05,017 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:57:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:05,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:05,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725237072] [2020-07-21 22:57:05,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:05,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:57:05,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914591878] [2020-07-21 22:57:05,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:57:05,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:05,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:57:05,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:57:05,152 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:57:06,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:06,301 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:57:06,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:57:06,306 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 144 [2020-07-21 22:57:06,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:06,327 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:57:06,327 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:57:06,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:57:06,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:57:06,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:57:06,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:57:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:57:06,443 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 144 [2020-07-21 22:57:06,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:06,445 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:57:06,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:57:06,445 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:57:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 22:57:06,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:06,456 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:06,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:06,659 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:06,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:06,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1282323431, now seen corresponding path program 1 times [2020-07-21 22:57:06,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:06,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240528465] [2020-07-21 22:57:06,661 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:06,792 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:06,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:06,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:57:06,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:07,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:07,740 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:57:07,742 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:57:07,743 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:57:07,747 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:57:07,748 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:57:07,786 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:57:07,787 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:57:07,827 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:07,884 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:07,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:07,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240528465] [2020-07-21 22:57:07,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:07,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:57:07,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365765186] [2020-07-21 22:57:07,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:57:07,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:07,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:57:07,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:57:07,998 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:57:08,950 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:57:09,978 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:57:11,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:11,445 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 22:57:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:57:11,446 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 153 [2020-07-21 22:57:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:11,455 INFO L225 Difference]: With dead ends: 738 [2020-07-21 22:57:11,456 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 22:57:11,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 283 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 22:57:11,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 22:57:11,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 22:57:11,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:57:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 22:57:11,518 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 153 [2020-07-21 22:57:11,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:11,519 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 22:57:11,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:57:11,519 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 22:57:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 22:57:11,521 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:11,522 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:11,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:11,738 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:11,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:11,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1049942138, now seen corresponding path program 1 times [2020-07-21 22:57:11,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:11,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684517991] [2020-07-21 22:57:11,741 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:11,823 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:57:11,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:11,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:57:11,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:11,849 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:57:11,850 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:57:11,873 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:57:11,927 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:11,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:12,020 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:57:12,021 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:12,045 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:57:12,098 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:12,102 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:12,130 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:12,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684517991] [2020-07-21 22:57:12,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:12,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:12,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649814969] [2020-07-21 22:57:12,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:12,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:12,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:12,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:12,133 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 22:57:13,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:13,792 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 22:57:13,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 22:57:13,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-07-21 22:57:13,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:13,810 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 22:57:13,811 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 22:57:13,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 329 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 22:57:13,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 22:57:13,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 22:57:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 22:57:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 22:57:13,887 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 165 [2020-07-21 22:57:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:13,889 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 22:57:13,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:13,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 22:57:13,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-07-21 22:57:13,896 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:13,897 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:14,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:14,112 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:14,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:14,113 INFO L82 PathProgramCache]: Analyzing trace with hash -130291055, now seen corresponding path program 1 times [2020-07-21 22:57:14,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:14,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247566314] [2020-07-21 22:57:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:14,241 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:57:14,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:14,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-21 22:57:14,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 22:57:14,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:14,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247566314] [2020-07-21 22:57:14,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:14,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 22:57:14,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128590702] [2020-07-21 22:57:14,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 22:57:14,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:14,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 22:57:14,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 22:57:14,354 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 4 states. [2020-07-21 22:57:15,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:15,080 INFO L93 Difference]: Finished difference Result 2113 states and 2722 transitions. [2020-07-21 22:57:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 22:57:15,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2020-07-21 22:57:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:15,092 INFO L225 Difference]: With dead ends: 2113 [2020-07-21 22:57:15,093 INFO L226 Difference]: Without dead ends: 1015 [2020-07-21 22:57:15,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 22:57:15,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-07-21 22:57:15,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2020-07-21 22:57:15,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 22:57:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1265 transitions. [2020-07-21 22:57:15,158 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1265 transitions. Word has length 186 [2020-07-21 22:57:15,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:15,161 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1265 transitions. [2020-07-21 22:57:15,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 22:57:15,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1265 transitions. [2020-07-21 22:57:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-21 22:57:15,169 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:15,170 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:15,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:15,383 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:15,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:15,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2054368206, now seen corresponding path program 1 times [2020-07-21 22:57:15,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:15,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635229297] [2020-07-21 22:57:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:15,485 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:57:15,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:15,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:15,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:15,527 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:57:15,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:57:15,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635229297] [2020-07-21 22:57:15,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:15,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 22:57:15,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038237002] [2020-07-21 22:57:15,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:57:15,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:15,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:57:15,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:57:15,602 INFO L87 Difference]: Start difference. First operand 1015 states and 1265 transitions. Second operand 8 states. [2020-07-21 22:57:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:16,708 INFO L93 Difference]: Finished difference Result 2448 states and 3158 transitions. [2020-07-21 22:57:16,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:57:16,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 189 [2020-07-21 22:57:16,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:16,713 INFO L225 Difference]: With dead ends: 2448 [2020-07-21 22:57:16,713 INFO L226 Difference]: Without dead ends: 984 [2020-07-21 22:57:16,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:57:16,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-07-21 22:57:16,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 984. [2020-07-21 22:57:16,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2020-07-21 22:57:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1170 transitions. [2020-07-21 22:57:16,742 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1170 transitions. Word has length 189 [2020-07-21 22:57:16,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:16,742 INFO L479 AbstractCegarLoop]: Abstraction has 984 states and 1170 transitions. [2020-07-21 22:57:16,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:57:16,742 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1170 transitions. [2020-07-21 22:57:16,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-21 22:57:16,746 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:16,747 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:16,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:16,960 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:16,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:16,961 INFO L82 PathProgramCache]: Analyzing trace with hash 84176453, now seen corresponding path program 1 times [2020-07-21 22:57:16,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:16,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723222263] [2020-07-21 22:57:16,963 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:17,051 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:17,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:17,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:57:17,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:17,097 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:17,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:17,157 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:17,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723222263] [2020-07-21 22:57:17,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:17,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:17,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095538801] [2020-07-21 22:57:17,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:17,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:17,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:17,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:17,160 INFO L87 Difference]: Start difference. First operand 984 states and 1170 transitions. Second operand 7 states. [2020-07-21 22:57:17,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:17,875 INFO L93 Difference]: Finished difference Result 2543 states and 3209 transitions. [2020-07-21 22:57:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:57:17,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2020-07-21 22:57:17,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:17,884 INFO L225 Difference]: With dead ends: 2543 [2020-07-21 22:57:17,885 INFO L226 Difference]: Without dead ends: 1619 [2020-07-21 22:57:17,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:57:17,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2020-07-21 22:57:17,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1585. [2020-07-21 22:57:17,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1585 states. [2020-07-21 22:57:17,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 1888 transitions. [2020-07-21 22:57:17,932 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 1888 transitions. Word has length 192 [2020-07-21 22:57:17,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:17,933 INFO L479 AbstractCegarLoop]: Abstraction has 1585 states and 1888 transitions. [2020-07-21 22:57:17,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:17,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 1888 transitions. [2020-07-21 22:57:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-21 22:57:17,939 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:17,939 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:18,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:18,153 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:18,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:18,154 INFO L82 PathProgramCache]: Analyzing trace with hash 381722178, now seen corresponding path program 1 times [2020-07-21 22:57:18,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:18,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389422707] [2020-07-21 22:57:18,154 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:18,259 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:18,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:18,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:18,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:18,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:18,404 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:18,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389422707] [2020-07-21 22:57:18,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:18,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:18,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821943199] [2020-07-21 22:57:18,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:18,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:18,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:18,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:18,408 INFO L87 Difference]: Start difference. First operand 1585 states and 1888 transitions. Second operand 7 states. [2020-07-21 22:57:19,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:19,473 INFO L93 Difference]: Finished difference Result 3555 states and 4284 transitions. [2020-07-21 22:57:19,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:57:19,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-07-21 22:57:19,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:19,483 INFO L225 Difference]: With dead ends: 3555 [2020-07-21 22:57:19,483 INFO L226 Difference]: Without dead ends: 2030 [2020-07-21 22:57:19,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 407 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:57:19,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2020-07-21 22:57:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 2016. [2020-07-21 22:57:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2020-07-21 22:57:19,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2224 transitions. [2020-07-21 22:57:19,533 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2224 transitions. Word has length 206 [2020-07-21 22:57:19,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:19,534 INFO L479 AbstractCegarLoop]: Abstraction has 2016 states and 2224 transitions. [2020-07-21 22:57:19,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2224 transitions. [2020-07-21 22:57:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-21 22:57:19,542 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:19,542 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:19,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:19,758 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:19,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:19,758 INFO L82 PathProgramCache]: Analyzing trace with hash -686923797, now seen corresponding path program 1 times [2020-07-21 22:57:19,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:19,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549178805] [2020-07-21 22:57:19,759 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:19,874 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:19,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:19,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:57:19,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 22:57:19,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 152 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 22:57:20,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549178805] [2020-07-21 22:57:20,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:20,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:20,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747093470] [2020-07-21 22:57:20,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:20,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:20,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:20,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:20,118 INFO L87 Difference]: Start difference. First operand 2016 states and 2224 transitions. Second operand 7 states. [2020-07-21 22:57:21,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:21,008 INFO L93 Difference]: Finished difference Result 4584 states and 5063 transitions. [2020-07-21 22:57:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:57:21,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-07-21 22:57:21,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:21,019 INFO L225 Difference]: With dead ends: 4584 [2020-07-21 22:57:21,019 INFO L226 Difference]: Without dead ends: 2628 [2020-07-21 22:57:21,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:57:21,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2020-07-21 22:57:21,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2617. [2020-07-21 22:57:21,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2617 states. [2020-07-21 22:57:21,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 2825 transitions. [2020-07-21 22:57:21,082 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 2825 transitions. Word has length 269 [2020-07-21 22:57:21,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:21,082 INFO L479 AbstractCegarLoop]: Abstraction has 2617 states and 2825 transitions. [2020-07-21 22:57:21,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:21,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 2825 transitions. [2020-07-21 22:57:21,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-07-21 22:57:21,093 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:21,093 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:21,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:21,309 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:21,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:21,310 INFO L82 PathProgramCache]: Analyzing trace with hash -352519467, now seen corresponding path program 1 times [2020-07-21 22:57:21,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:21,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653748757] [2020-07-21 22:57:21,311 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:21,474 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:57:21,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:21,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:21,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:21,533 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 22:57:21,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:21,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653748757] [2020-07-21 22:57:21,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:21,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:57:21,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400891570] [2020-07-21 22:57:21,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:57:21,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:21,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:57:21,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:57:21,535 INFO L87 Difference]: Start difference. First operand 2617 states and 2825 transitions. Second operand 3 states. [2020-07-21 22:57:22,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:22,060 INFO L93 Difference]: Finished difference Result 5610 states and 6131 transitions. [2020-07-21 22:57:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:57:22,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2020-07-21 22:57:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:22,070 INFO L225 Difference]: With dead ends: 5610 [2020-07-21 22:57:22,071 INFO L226 Difference]: Without dead ends: 2755 [2020-07-21 22:57:22,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:57:22,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2020-07-21 22:57:22,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2753. [2020-07-21 22:57:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2753 states. [2020-07-21 22:57:22,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2753 states to 2753 states and 2958 transitions. [2020-07-21 22:57:22,132 INFO L78 Accepts]: Start accepts. Automaton has 2753 states and 2958 transitions. Word has length 286 [2020-07-21 22:57:22,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:22,133 INFO L479 AbstractCegarLoop]: Abstraction has 2753 states and 2958 transitions. [2020-07-21 22:57:22,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:57:22,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2753 states and 2958 transitions. [2020-07-21 22:57:22,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-07-21 22:57:22,143 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:22,144 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:22,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:22,358 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:22,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:22,358 INFO L82 PathProgramCache]: Analyzing trace with hash 371940754, now seen corresponding path program 1 times [2020-07-21 22:57:22,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:22,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568251264] [2020-07-21 22:57:22,360 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:22,493 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:57:22,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:22,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:57:22,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:22,618 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 22:57:22,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:22,705 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 22:57:22,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568251264] [2020-07-21 22:57:22,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:22,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:22,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280052388] [2020-07-21 22:57:22,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:22,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:22,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:22,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:22,707 INFO L87 Difference]: Start difference. First operand 2753 states and 2958 transitions. Second operand 7 states. [2020-07-21 22:57:23,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:23,455 INFO L93 Difference]: Finished difference Result 3191 states and 3422 transitions. [2020-07-21 22:57:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:57:23,455 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 307 [2020-07-21 22:57:23,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:23,456 INFO L225 Difference]: With dead ends: 3191 [2020-07-21 22:57:23,456 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:57:23,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:57:23,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:57:23,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:57:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:57:23,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:57:23,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 307 [2020-07-21 22:57:23,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:23,462 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:57:23,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:57:23,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:57:23,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:23,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:57:25,283 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 144 DAG size of output: 105 [2020-07-21 22:57:25,677 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 54 [2020-07-21 22:57:26,086 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 65 [2020-07-21 22:57:26,090 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:57:26,091 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 22:57:26,091 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:57:26,091 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,091 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,091 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,091 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,092 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,092 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:57:26,092 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:57:26,092 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:57:26,092 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:57:26,092 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:57:26,093 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:57:26,093 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:57:26,093 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:57:26,093 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:57:26,093 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:57:26,093 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:57:26,093 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:57:26,093 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:57:26,093 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:57:26,094 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:57:26,095 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:57:26,095 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:57:26,095 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:57:26,095 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:57:26,095 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:57:26,095 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:57:26,095 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:57:26,096 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:57:26,096 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,096 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,096 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,096 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,096 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,096 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 586) no Hoare annotation was computed. [2020-07-21 22:57:26,096 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:57:26,097 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:57:26,097 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:57:26,097 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:57:26,097 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:57:26,097 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:57:26,097 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:57:26,097 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:57:26,097 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:57:26,098 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:57:26,098 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:57:26,098 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,098 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,098 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,098 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,098 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,098 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:57:26,098 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:57:26,099 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:57:26,099 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:57:26,099 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:57:26,099 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:57:26,099 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:57:26,099 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:57:26,099 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:57:26,099 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:57:26,099 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:57:26,100 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:57:26,100 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:57:26,100 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,100 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,100 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,100 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,100 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,100 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:57:26,101 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:57:26,101 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:57:26,101 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:57:26,101 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:57:26,101 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:57:26,101 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:57:26,101 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:57:26,101 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:57:26,102 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:57:26,102 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:57:26,102 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:57:26,102 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:57:26,102 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:57:26,102 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:57:26,102 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:57:26,102 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,102 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,103 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,103 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,103 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:57:26,103 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,103 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:57:26,103 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,103 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:57:26,103 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:57:26,104 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:57:26,104 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,104 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,104 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:57:26,104 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:57:26,104 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:57:26,104 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:57:26,104 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:57:26,105 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:57:26,105 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:57:26,105 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:57:26,105 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:57:26,105 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:57:26,105 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:57:26,105 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,106 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,106 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,106 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,106 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,106 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,106 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:57:26,106 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:57:26,106 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:57:26,106 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:57:26,107 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:57:26,107 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:57:26,107 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:57:26,107 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:57:26,107 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:57:26,107 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:57:26,107 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:57:26,107 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,108 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,108 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,108 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,108 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,108 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,108 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:57:26,108 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:57:26,108 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:57:26,109 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:57:26,109 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:57:26,109 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:57:26,109 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:57:26,109 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:57:26,109 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:57:26,109 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:57:26,109 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:57:26,109 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:57:26,110 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:57:26,110 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:57:26,110 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,110 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,110 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,110 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (= ~a25~0 |old(~a25~0)|)) (.cse25 (= ~a11~0 |old(~a11~0)|)) (.cse20 (<= ~a28~0 |old(~a28~0)|)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse6 (< ~a17~0 9)) (.cse7 (<= |old(~a28~0)| ~a28~0)) (.cse18 (= 1 ~a25~0)) (.cse26 (= 1 |old(~a25~0)|))) (let ((.cse12 (= 1 ~a19~0)) (.cse11 (not (= 8 |old(~a17~0)|))) (.cse15 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse14 (= 8 ~a17~0)) (.cse13 (<= ~a11~0 |old(~a11~0)|)) (.cse17 (not (<= |old(~a17~0)| 7))) (.cse4 (= 1 ~a11~0)) (.cse3 (and .cse26 (not (< 9 |old(~a28~0)|)))) (.cse10 (not (= 1 |old(~a11~0)|))) (.cse24 (and .cse25 .cse20 .cse5 .cse6 .cse7 .cse18)) (.cse21 (not (< |old(~a28~0)| 11))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse22 (not (<= |old(~a28~0)| 7))) (.cse19 (not .cse26)) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse2 (not (< |old(~a17~0)| 9))) (.cse23 (and .cse20 .cse25 .cse5 .cse6 .cse7 .cse8)) (.cse9 (not (= 1 ~a21~0))) (.cse16 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 (<= ~a28~0 9) .cse5 .cse6 .cse7 .cse8) (not (< 8 |old(~a28~0)|)) .cse9 .cse10) (or .cse0 (not (= 10 |old(~a28~0)|)) .cse11 (and .cse12 .cse13 (= 10 ~a28~0) .cse14) .cse15 .cse9 .cse16) (or (and (<= ~a17~0 |old(~a17~0)|) .cse7 .cse8) .cse17 .cse9) (or .cse0 (and .cse12 .cse4 (= 9 ~a28~0) .cse14 .cse18) .cse11 .cse19 .cse9 (not (= 9 |old(~a28~0)|)) .cse10) (or .cse0 .cse11 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) .cse15 .cse9 .cse14 .cse16) (or .cse13 .cse17 .cse9 .cse16) (or .cse0 (and .cse20 .cse4 .cse5 .cse6 .cse7 .cse18) .cse19 .cse2 .cse3 .cse9 .cse21 .cse10) (or .cse22 .cse2 .cse23 .cse9 .cse10) (or .cse0 .cse24 .cse19 .cse2 .cse9 .cse16) (or .cse24 .cse19 .cse2 .cse9 .cse16 .cse21) (or .cse0 .cse22 .cse19 .cse2 (and .cse20 .cse5 .cse6 .cse7 .cse18) .cse9) (or .cse1 .cse2 .cse23 .cse9 .cse16)))) [2020-07-21 22:57:26,111 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,111 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,111 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,111 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:57:26,111 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:57:26,111 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:57:26,111 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:57:26,111 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:57:26,111 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:57:26,112 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:57:26,112 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:57:26,112 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:57:26,112 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:57:26,112 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:57:26,112 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:57:26,112 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:57:26,112 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,113 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,113 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,113 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,113 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,113 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,113 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:57:26,113 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:57:26,113 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:57:26,114 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:57:26,114 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:57:26,114 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:57:26,114 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:57:26,114 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:57:26,114 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:57:26,114 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:57:26,114 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:57:26,114 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:57:26,115 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:57:26,115 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:57:26,115 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:57:26,115 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:57:26,115 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,115 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,115 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,115 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,116 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:26,116 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:57:26,116 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:57:26,116 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:57:26,116 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:57:26,116 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:57:26,116 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:57:26,117 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:57:26,117 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:57:26,117 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:57:26,117 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:57:26,117 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:57:26,117 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:57:26,117 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:57:26,117 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:57:26,118 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:57:26,118 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:57:26,118 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:57:26,118 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:57:26,118 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:57:26,118 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:57:26,118 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 22:57:26,118 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:57:26,119 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:57:26,119 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (and (= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:57:26,119 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse6 (= 8 ~a17~0)) (.cse1 (= 1 ~a11~0)) (.cse0 (= 1 ~a19~0)) (.cse7 (<= ~a28~0 7)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse2 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse4 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (< 8 ~a28~0) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse3 .cse4) (not (= 7 |old(~a28~0)|)) (and .cse5 (<= ~a28~0 9) .cse3) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 (<= ~a11~0 0) (= 10 ~a28~0) .cse6) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1 (= 9 ~a28~0) .cse6) (<= ~a17~0 7) (and .cse1 .cse3 .cse7) (and .cse0 .cse3 .cse7 .cse4) (and .cse5 .cse2 .cse3 .cse4))) [2020-07-21 22:57:26,119 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:57:26,119 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:57:26,120 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse6 (= 8 ~a17~0)) (.cse1 (= 1 ~a11~0)) (.cse0 (= 1 ~a19~0)) (.cse7 (<= ~a28~0 7)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse2 (< ~a28~0 11)) (.cse3 (< ~a17~0 9)) (.cse4 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (< 8 ~a28~0) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse3 .cse4) (not (= 7 |old(~a28~0)|)) (and .cse5 (<= ~a28~0 9) .cse3) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1 (= 9 ~a28~0) .cse6) (and .cse0 (<= ~a11~0 0) (= 10 ~a28~0) .cse6 (or (= 1 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0))) (<= ~a17~0 7) (and .cse1 .cse3 .cse7) (and .cse0 .cse3 .cse7 .cse4) (and .cse5 .cse2 .cse3 .cse4))) [2020-07-21 22:57:26,120 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:57:26,120 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:57:26,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:57:26 BoogieIcfgContainer [2020-07-21 22:57:26,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:57:26,145 INFO L168 Benchmark]: Toolchain (without parser) took 24121.49 ms. Allocated memory was 136.8 MB in the beginning and 573.0 MB in the end (delta: 436.2 MB). Free memory was 98.8 MB in the beginning and 271.7 MB in the end (delta: -172.9 MB). Peak memory consumption was 418.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:26,145 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 22:57:26,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 806.89 ms. Allocated memory was 136.8 MB in the beginning and 202.9 MB in the end (delta: 66.1 MB). Free memory was 98.4 MB in the beginning and 169.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:26,147 INFO L168 Benchmark]: Boogie Preprocessor took 99.87 ms. Allocated memory is still 202.9 MB. Free memory was 169.7 MB in the beginning and 164.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:26,148 INFO L168 Benchmark]: RCFGBuilder took 1135.48 ms. Allocated memory was 202.9 MB in the beginning and 233.3 MB in the end (delta: 30.4 MB). Free memory was 164.7 MB in the beginning and 179.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:26,149 INFO L168 Benchmark]: TraceAbstraction took 22073.85 ms. Allocated memory was 233.3 MB in the beginning and 573.0 MB in the end (delta: 339.7 MB). Free memory was 179.1 MB in the beginning and 271.7 MB in the end (delta: -92.6 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:26,152 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 806.89 ms. Allocated memory was 136.8 MB in the beginning and 202.9 MB in the end (delta: 66.1 MB). Free memory was 98.4 MB in the beginning and 169.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.87 ms. Allocated memory is still 202.9 MB. Free memory was 169.7 MB in the beginning and 164.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1135.48 ms. Allocated memory was 202.9 MB in the beginning and 233.3 MB in the end (delta: 30.4 MB). Free memory was 164.7 MB in the beginning and 179.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22073.85 ms. Allocated memory was 233.3 MB in the beginning and 573.0 MB in the end (delta: 339.7 MB). Free memory was 179.1 MB in the beginning and 271.7 MB in the end (delta: -92.6 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 586]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a19)) || (((((1 == a19 && 8 < a28) && 1 == a11) && a28 < 11) && a17 < 9) && 1 == a25)) || (((1 == a19 && a11 == \old(a11)) && a17 < 9) && 1 == a25)) || !(7 == \old(a28))) || ((a11 == \old(a11) && a28 <= 9) && a17 < 9)) || !(1 == a21)) || !(\old(a11) <= 0)) || (((1 == a19 && a11 <= 0) && 10 == a28) && 8 == a17)) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || (((1 == a19 && 1 == a11) && 9 == a28) && 8 == a17)) || a17 <= 7) || ((1 == a11 && a17 < 9) && a28 <= 7)) || (((1 == a19 && a17 < 9) && a28 <= 7) && 1 == a25)) || (((a11 == \old(a11) && a28 < 11) && a17 < 9) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.5s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 806 SDtfs, 5807 SDslu, 791 SDs, 0 SdLazy, 9543 SolverSat, 1183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3630 GetRequests, 3517 SyntacticMatches, 5 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2753occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 123 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 103 PreInvPairs, 149 NumberOfFragments, 837 HoareAnnotationTreeSize, 103 FomulaSimplifications, 1703 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3199 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2097 NumberOfCodeBlocks, 1234 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3561 ConstructedInterpolants, 0 QuantifiedInterpolants, 2622466 SizeOfPredicates, 47 NumberOfNonLiveVariables, 3712 ConjunctsInSsa, 165 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1606/1648 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...