/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/Problem14_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:32:15,209 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:32:15,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:32:15,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:32:15,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:32:15,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:32:15,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:32:15,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:32:15,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:32:15,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:32:15,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:32:15,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:32:15,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:32:15,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:32:15,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:32:15,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:32:15,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:32:15,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:32:15,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:32:15,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:32:15,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:32:15,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:32:15,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:32:15,297 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 01:32:15,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:32:15,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:32:15,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:32:15,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:32:15,340 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:32:15,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:32:15,340 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:32:15,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:32:15,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:32:15,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:32:15,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:32:15,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:32:15,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:32:15,344 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:32:15,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:32:15,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:32:15,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:32:15,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:32:15,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:32:15,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:32:15,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:32:15,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:32:15,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:32:15,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:32:15,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:32:15,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:32:15,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:15,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:32:15,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:32:15,348 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 01:32:15,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:32:15,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:32:15,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:32:15,830 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:32:15,830 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:32:15,831 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label21.c [2020-07-21 01:32:15,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eacf1e575/0ca8c589f8984f9f9d309e3c417358f0/FLAGeaf6ff1ed [2020-07-21 01:32:16,588 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:32:16,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label21.c [2020-07-21 01:32:16,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eacf1e575/0ca8c589f8984f9f9d309e3c417358f0/FLAGeaf6ff1ed [2020-07-21 01:32:16,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eacf1e575/0ca8c589f8984f9f9d309e3c417358f0 [2020-07-21 01:32:16,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:32:16,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:32:16,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:32:16,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:32:16,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:32:16,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:32:16" (1/1) ... [2020-07-21 01:32:16,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@716e79d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:16, skipping insertion in model container [2020-07-21 01:32:16,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:32:16" (1/1) ... [2020-07-21 01:32:16,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:32:16,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:32:17,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:32:17,561 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:32:17,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:32:17,729 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:32:17,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17 WrapperNode [2020-07-21 01:32:17,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:32:17,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:32:17,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:32:17,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:32:17,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17" (1/1) ... [2020-07-21 01:32:17,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17" (1/1) ... [2020-07-21 01:32:17,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17" (1/1) ... [2020-07-21 01:32:17,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17" (1/1) ... [2020-07-21 01:32:17,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17" (1/1) ... [2020-07-21 01:32:17,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17" (1/1) ... [2020-07-21 01:32:17,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17" (1/1) ... [2020-07-21 01:32:17,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:32:17,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:32:17,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:32:17,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:32:17,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17" (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 01:32:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:32:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:32:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:32:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:32:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:32:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:32:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:32:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:32:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:32:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:32:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:32:19,654 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:32:19,654 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:32:19,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:32:19 BoogieIcfgContainer [2020-07-21 01:32:19,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:32:19,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:32:19,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:32:19,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:32:19,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:32:16" (1/3) ... [2020-07-21 01:32:19,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470902ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:32:19, skipping insertion in model container [2020-07-21 01:32:19,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:17" (2/3) ... [2020-07-21 01:32:19,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470902ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:32:19, skipping insertion in model container [2020-07-21 01:32:19,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:32:19" (3/3) ... [2020-07-21 01:32:19,672 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label21.c [2020-07-21 01:32:19,684 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:32:19,694 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:32:19,710 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:32:19,740 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:32:19,740 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:32:19,741 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:32:19,741 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:32:19,741 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:32:19,741 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:32:19,741 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:32:19,741 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:32:19,766 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-21 01:32:19,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-21 01:32:19,776 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:19,777 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] [2020-07-21 01:32:19,778 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:19,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:19,785 INFO L82 PathProgramCache]: Analyzing trace with hash -736368013, now seen corresponding path program 1 times [2020-07-21 01:32:19,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:19,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610631834] [2020-07-21 01:32:19,794 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 01:32:19,965 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:32:19,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:19,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:32:19,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:20,089 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 01:32:20,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:32:20,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610631834] [2020-07-21 01:32:20,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:32:20,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:32:20,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017023318] [2020-07-21 01:32:20,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:32:20,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:20,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:32:20,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:32:20,126 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-07-21 01:32:21,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:21,642 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2020-07-21 01:32:21,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:32:21,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-07-21 01:32:21,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:21,664 INFO L225 Difference]: With dead ends: 688 [2020-07-21 01:32:21,664 INFO L226 Difference]: Without dead ends: 372 [2020-07-21 01:32:21,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 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 01:32:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-07-21 01:32:21,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2020-07-21 01:32:21,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-07-21 01:32:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 560 transitions. [2020-07-21 01:32:21,775 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 560 transitions. Word has length 40 [2020-07-21 01:32:21,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:21,778 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 560 transitions. [2020-07-21 01:32:21,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:32:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 560 transitions. [2020-07-21 01:32:21,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 01:32:21,787 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:21,788 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 01:32:22,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:22,003 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:22,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:22,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1103541129, now seen corresponding path program 1 times [2020-07-21 01:32:22,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:22,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638592363] [2020-07-21 01:32:22,007 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 01:32:22,099 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:32:22,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:22,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:32:22,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:32:22,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:32:22,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638592363] [2020-07-21 01:32:22,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:32:22,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:32:22,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025295595] [2020-07-21 01:32:22,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:32:22,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:22,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:32:22,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:32:22,214 INFO L87 Difference]: Start difference. First operand 372 states and 560 transitions. Second operand 5 states. [2020-07-21 01:32:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:23,861 INFO L93 Difference]: Finished difference Result 1124 states and 1723 transitions. [2020-07-21 01:32:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:32:23,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-07-21 01:32:23,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:23,872 INFO L225 Difference]: With dead ends: 1124 [2020-07-21 01:32:23,872 INFO L226 Difference]: Without dead ends: 758 [2020-07-21 01:32:23,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:32:23,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-07-21 01:32:23,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 744. [2020-07-21 01:32:23,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-07-21 01:32:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1012 transitions. [2020-07-21 01:32:23,939 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1012 transitions. Word has length 119 [2020-07-21 01:32:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:23,943 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 1012 transitions. [2020-07-21 01:32:23,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:32:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1012 transitions. [2020-07-21 01:32:23,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 01:32:23,952 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:23,953 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 01:32:24,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:24,155 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:24,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:24,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1466730177, now seen corresponding path program 1 times [2020-07-21 01:32:24,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:24,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412713539] [2020-07-21 01:32:24,157 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 01:32:24,251 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:32:24,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:24,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-21 01:32:24,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:24,347 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-07-21 01:32:24,348 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:24,350 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:24,352 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:32:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:32:24,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:32:24,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412713539] [2020-07-21 01:32:24,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:32:24,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 01:32:24,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110386976] [2020-07-21 01:32:24,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:32:24,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:24,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:32:24,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:32:24,466 INFO L87 Difference]: Start difference. First operand 744 states and 1012 transitions. Second operand 6 states. [2020-07-21 01:32:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:26,523 INFO L93 Difference]: Finished difference Result 1936 states and 2596 transitions. [2020-07-21 01:32:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-21 01:32:26,525 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-07-21 01:32:26,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:26,541 INFO L225 Difference]: With dead ends: 1936 [2020-07-21 01:32:26,541 INFO L226 Difference]: Without dead ends: 1198 [2020-07-21 01:32:26,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:32:26,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-07-21 01:32:26,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1122. [2020-07-21 01:32:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-07-21 01:32:26,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1465 transitions. [2020-07-21 01:32:26,630 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1465 transitions. Word has length 123 [2020-07-21 01:32:26,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:26,634 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1465 transitions. [2020-07-21 01:32:26,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:32:26,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1465 transitions. [2020-07-21 01:32:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 01:32:26,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:26,645 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:32:26,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:26,860 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:26,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:26,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1698102394, now seen corresponding path program 1 times [2020-07-21 01:32:26,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:26,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821676664] [2020-07-21 01:32:26,862 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 01:32:27,007 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:32:27,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:27,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:32:27,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:32:27,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:32:27,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821676664] [2020-07-21 01:32:27,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:32:27,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:32:27,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098461231] [2020-07-21 01:32:27,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:32:27,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:27,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:32:27,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:32:27,078 INFO L87 Difference]: Start difference. First operand 1122 states and 1465 transitions. Second operand 3 states. [2020-07-21 01:32:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:28,255 INFO L93 Difference]: Finished difference Result 2606 states and 3478 transitions. [2020-07-21 01:32:28,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:32:28,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-07-21 01:32:28,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:28,270 INFO L225 Difference]: With dead ends: 2606 [2020-07-21 01:32:28,270 INFO L226 Difference]: Without dead ends: 1490 [2020-07-21 01:32:28,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 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 01:32:28,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2020-07-21 01:32:28,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1490. [2020-07-21 01:32:28,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-07-21 01:32:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1914 transitions. [2020-07-21 01:32:28,335 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1914 transitions. Word has length 150 [2020-07-21 01:32:28,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:28,337 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1914 transitions. [2020-07-21 01:32:28,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:32:28,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1914 transitions. [2020-07-21 01:32:28,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-07-21 01:32:28,341 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:28,341 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:28,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:28,557 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:28,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:28,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1787764330, now seen corresponding path program 1 times [2020-07-21 01:32:28,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:28,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366549003] [2020-07-21 01:32:28,559 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 01:32:28,656 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:32:28,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:28,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:32:28,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:28,736 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:32:28,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:32:28,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366549003] [2020-07-21 01:32:28,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:32:28,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:32:28,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235070798] [2020-07-21 01:32:28,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:32:28,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:28,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:32:28,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:32:28,740 INFO L87 Difference]: Start difference. First operand 1490 states and 1914 transitions. Second operand 5 states. [2020-07-21 01:32:30,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:30,252 INFO L93 Difference]: Finished difference Result 3564 states and 4847 transitions. [2020-07-21 01:32:30,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:32:30,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 180 [2020-07-21 01:32:30,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:30,269 INFO L225 Difference]: With dead ends: 3564 [2020-07-21 01:32:30,269 INFO L226 Difference]: Without dead ends: 2080 [2020-07-21 01:32:30,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:32:30,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2020-07-21 01:32:30,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 2048. [2020-07-21 01:32:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2020-07-21 01:32:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 2606 transitions. [2020-07-21 01:32:30,342 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 2606 transitions. Word has length 180 [2020-07-21 01:32:30,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:30,343 INFO L479 AbstractCegarLoop]: Abstraction has 2048 states and 2606 transitions. [2020-07-21 01:32:30,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:32:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 2606 transitions. [2020-07-21 01:32:30,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-07-21 01:32:30,348 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:30,349 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 01:32:30,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:30,563 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:30,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:30,564 INFO L82 PathProgramCache]: Analyzing trace with hash 773376748, now seen corresponding path program 1 times [2020-07-21 01:32:30,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:30,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973459678] [2020-07-21 01:32:30,566 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 01:32:30,686 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:32:30,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:30,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 01:32:30,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:30,727 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:32:30,727 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:30,729 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:30,744 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 01:32:30,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:32:30,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973459678] [2020-07-21 01:32:30,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:32:30,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:32:30,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484919531] [2020-07-21 01:32:30,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:32:30,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:30,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:32:30,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:32:30,879 INFO L87 Difference]: Start difference. First operand 2048 states and 2606 transitions. Second operand 5 states. [2020-07-21 01:32:32,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:32,822 INFO L93 Difference]: Finished difference Result 4484 states and 5648 transitions. [2020-07-21 01:32:32,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:32:32,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 285 [2020-07-21 01:32:32,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:32,842 INFO L225 Difference]: With dead ends: 4484 [2020-07-21 01:32:32,843 INFO L226 Difference]: Without dead ends: 2442 [2020-07-21 01:32:32,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:32:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2020-07-21 01:32:32,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2428. [2020-07-21 01:32:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2428 states. [2020-07-21 01:32:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 2999 transitions. [2020-07-21 01:32:32,976 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 2999 transitions. Word has length 285 [2020-07-21 01:32:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:32,977 INFO L479 AbstractCegarLoop]: Abstraction has 2428 states and 2999 transitions. [2020-07-21 01:32:32,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:32:32,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 2999 transitions. [2020-07-21 01:32:32,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-07-21 01:32:32,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:32,989 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:32:33,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:33,199 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:33,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:33,200 INFO L82 PathProgramCache]: Analyzing trace with hash 228286821, now seen corresponding path program 1 times [2020-07-21 01:32:33,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:33,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475181621] [2020-07-21 01:32:33,203 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 01:32:33,442 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:32:33,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:33,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-21 01:32:33,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:33,571 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-21 01:32:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 292 proven. 53 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 01:32:34,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:32:34,159 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:32:34,885 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 107 proven. 268 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 01:32:34,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475181621] [2020-07-21 01:32:34,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:32:34,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-07-21 01:32:34,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678884091] [2020-07-21 01:32:34,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-21 01:32:34,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:34,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-21 01:32:34,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:32:34,890 INFO L87 Difference]: Start difference. First operand 2428 states and 2999 transitions. Second operand 14 states. [2020-07-21 01:32:39,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:39,428 INFO L93 Difference]: Finished difference Result 5457 states and 7137 transitions. [2020-07-21 01:32:39,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-21 01:32:39,431 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 369 [2020-07-21 01:32:39,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:39,456 INFO L225 Difference]: With dead ends: 5457 [2020-07-21 01:32:39,457 INFO L226 Difference]: Without dead ends: 3055 [2020-07-21 01:32:39,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 746 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=367, Invalid=1115, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 01:32:39,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2020-07-21 01:32:39,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2806. [2020-07-21 01:32:39,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2806 states. [2020-07-21 01:32:39,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3140 transitions. [2020-07-21 01:32:39,604 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3140 transitions. Word has length 369 [2020-07-21 01:32:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:39,605 INFO L479 AbstractCegarLoop]: Abstraction has 2806 states and 3140 transitions. [2020-07-21 01:32:39,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-21 01:32:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3140 transitions. [2020-07-21 01:32:39,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-07-21 01:32:39,614 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:39,615 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:32:39,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:39,831 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:39,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:39,832 INFO L82 PathProgramCache]: Analyzing trace with hash -688897175, now seen corresponding path program 1 times [2020-07-21 01:32:39,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:39,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267814879] [2020-07-21 01:32:39,833 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 01:32:40,327 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:32:40,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:40,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:32:40,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:40,490 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-07-21 01:32:40,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:32:40,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267814879] [2020-07-21 01:32:40,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:32:40,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:32:40,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900570447] [2020-07-21 01:32:40,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:32:40,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:40,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:32:40,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:32:40,495 INFO L87 Difference]: Start difference. First operand 2806 states and 3140 transitions. Second operand 3 states. [2020-07-21 01:32:41,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:41,572 INFO L93 Difference]: Finished difference Result 5794 states and 6602 transitions. [2020-07-21 01:32:41,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:32:41,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 371 [2020-07-21 01:32:41,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:41,592 INFO L225 Difference]: With dead ends: 5794 [2020-07-21 01:32:41,592 INFO L226 Difference]: Without dead ends: 3176 [2020-07-21 01:32:41,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 369 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 01:32:41,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2020-07-21 01:32:41,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 2812. [2020-07-21 01:32:41,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2812 states. [2020-07-21 01:32:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 3230 transitions. [2020-07-21 01:32:41,688 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 3230 transitions. Word has length 371 [2020-07-21 01:32:41,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:41,689 INFO L479 AbstractCegarLoop]: Abstraction has 2812 states and 3230 transitions. [2020-07-21 01:32:41,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:32:41,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 3230 transitions. [2020-07-21 01:32:41,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2020-07-21 01:32:41,701 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:41,702 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:32:41,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:41,917 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:41,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:41,917 INFO L82 PathProgramCache]: Analyzing trace with hash -289920288, now seen corresponding path program 1 times [2020-07-21 01:32:41,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:41,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632333979] [2020-07-21 01:32:41,919 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 01:32:42,201 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:32:42,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:42,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:32:42,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 546 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-07-21 01:32:42,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:32:42,644 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 33 [2020-07-21 01:32:42,689 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:32:42,690 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:42,692 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:42,693 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:42,694 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[6, 2, 1] term [2020-07-21 01:32:42,694 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 360 proven. 76 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-07-21 01:32:43,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632333979] [2020-07-21 01:32:43,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:32:43,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:32:43,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897118479] [2020-07-21 01:32:43,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:32:43,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:43,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:32:43,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:32:43,057 INFO L87 Difference]: Start difference. First operand 2812 states and 3230 transitions. Second operand 7 states. [2020-07-21 01:32:44,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:44,837 INFO L93 Difference]: Finished difference Result 6174 states and 7122 transitions. [2020-07-21 01:32:44,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:32:44,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 447 [2020-07-21 01:32:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:44,865 INFO L225 Difference]: With dead ends: 6174 [2020-07-21 01:32:44,865 INFO L226 Difference]: Without dead ends: 3552 [2020-07-21 01:32:44,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 901 GetRequests, 892 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:32:44,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2020-07-21 01:32:44,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3184. [2020-07-21 01:32:44,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-21 01:32:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 3564 transitions. [2020-07-21 01:32:44,978 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 3564 transitions. Word has length 447 [2020-07-21 01:32:44,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:44,980 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 3564 transitions. [2020-07-21 01:32:44,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:32:44,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 3564 transitions. [2020-07-21 01:32:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-07-21 01:32:44,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:44,993 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:32:45,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:45,207 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:45,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:45,208 INFO L82 PathProgramCache]: Analyzing trace with hash -114142867, now seen corresponding path program 1 times [2020-07-21 01:32:45,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:45,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36656448] [2020-07-21 01:32:45,209 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 01:32:45,569 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:32:45,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:45,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:32:45,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 364 proven. 2 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-07-21 01:32:45,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:32:45,937 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 364 proven. 2 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-07-21 01:32:45,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36656448] [2020-07-21 01:32:45,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:32:45,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:32:45,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958697208] [2020-07-21 01:32:45,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:32:45,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:45,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:32:45,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:32:45,939 INFO L87 Difference]: Start difference. First operand 3184 states and 3564 transitions. Second operand 6 states. [2020-07-21 01:32:47,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:47,240 INFO L93 Difference]: Finished difference Result 7298 states and 8276 transitions. [2020-07-21 01:32:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 01:32:47,242 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 452 [2020-07-21 01:32:47,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:47,263 INFO L225 Difference]: With dead ends: 7298 [2020-07-21 01:32:47,263 INFO L226 Difference]: Without dead ends: 4304 [2020-07-21 01:32:47,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 909 GetRequests, 900 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:32:47,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2020-07-21 01:32:47,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4296. [2020-07-21 01:32:47,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4296 states. [2020-07-21 01:32:47,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 4803 transitions. [2020-07-21 01:32:47,382 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 4803 transitions. Word has length 452 [2020-07-21 01:32:47,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:47,383 INFO L479 AbstractCegarLoop]: Abstraction has 4296 states and 4803 transitions. [2020-07-21 01:32:47,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:32:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 4803 transitions. [2020-07-21 01:32:47,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2020-07-21 01:32:47,391 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:47,392 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-21 01:32:47,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:47,606 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:47,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:47,607 INFO L82 PathProgramCache]: Analyzing trace with hash 905212038, now seen corresponding path program 1 times [2020-07-21 01:32:47,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:47,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28392872] [2020-07-21 01:32:47,608 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:48,133 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:32:48,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:48,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:32:48,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:48,295 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2020-07-21 01:32:48,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:32:48,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28392872] [2020-07-21 01:32:48,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:32:48,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:32:48,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447684466] [2020-07-21 01:32:48,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:32:48,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:48,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:32:48,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:32:48,298 INFO L87 Difference]: Start difference. First operand 4296 states and 4803 transitions. Second operand 3 states. [2020-07-21 01:32:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:49,260 INFO L93 Difference]: Finished difference Result 9504 states and 10704 transitions. [2020-07-21 01:32:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:32:49,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 535 [2020-07-21 01:32:49,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:49,289 INFO L225 Difference]: With dead ends: 9504 [2020-07-21 01:32:49,290 INFO L226 Difference]: Without dead ends: 5398 [2020-07-21 01:32:49,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 533 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 01:32:49,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5398 states. [2020-07-21 01:32:49,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5398 to 5398. [2020-07-21 01:32:49,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5398 states. [2020-07-21 01:32:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5398 states to 5398 states and 5985 transitions. [2020-07-21 01:32:49,436 INFO L78 Accepts]: Start accepts. Automaton has 5398 states and 5985 transitions. Word has length 535 [2020-07-21 01:32:49,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:49,437 INFO L479 AbstractCegarLoop]: Abstraction has 5398 states and 5985 transitions. [2020-07-21 01:32:49,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:32:49,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5398 states and 5985 transitions. [2020-07-21 01:32:49,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2020-07-21 01:32:49,450 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:49,450 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:32:49,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:49,664 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:49,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1515945676, now seen corresponding path program 1 times [2020-07-21 01:32:49,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:49,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502138636] [2020-07-21 01:32:49,665 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:50,046 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:32:50,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:50,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-21 01:32:50,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:50,552 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 44 [2020-07-21 01:32:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 743 proven. 220 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-21 01:32:51,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:32:51,422 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,425 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,427 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,428 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,429 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,431 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,433 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,435 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,437 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,439 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,442 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,443 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,444 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,445 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,447 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,449 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,450 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,453 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,454 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,456 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,459 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,461 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,464 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,464 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,466 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,468 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,470 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,471 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,473 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,475 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,476 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,477 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,480 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,481 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,483 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,483 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,484 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,486 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,488 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,489 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,490 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,493 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,494 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,495 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,496 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,498 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,499 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,500 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,503 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,504 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,505 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,506 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,508 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,509 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,511 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,513 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,521 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,521 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,526 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,528 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,529 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,531 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,551 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,553 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,553 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,554 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,555 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,556 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,558 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,558 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,560 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,561 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,563 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,564 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,566 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,567 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,568 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,569 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,571 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,572 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,575 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,576 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,576 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,578 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,580 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,581 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,582 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,583 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,584 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,586 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,588 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 401 proven. 213 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2020-07-21 01:32:51,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502138636] [2020-07-21 01:32:51,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:32:51,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-07-21 01:32:51,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816719189] [2020-07-21 01:32:51,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:32:51,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:51,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:32:51,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:32:51,879 INFO L87 Difference]: Start difference. First operand 5398 states and 5985 transitions. Second operand 11 states. [2020-07-21 01:32:54,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:54,696 INFO L93 Difference]: Finished difference Result 12442 states and 13866 transitions. [2020-07-21 01:32:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-21 01:32:54,699 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 586 [2020-07-21 01:32:54,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:54,721 INFO L225 Difference]: With dead ends: 12442 [2020-07-21 01:32:54,721 INFO L226 Difference]: Without dead ends: 7234 [2020-07-21 01:32:54,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1184 GetRequests, 1164 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-07-21 01:32:54,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7234 states. [2020-07-21 01:32:54,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7234 to 6870. [2020-07-21 01:32:54,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6870 states. [2020-07-21 01:32:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6870 states to 6870 states and 7623 transitions. [2020-07-21 01:32:54,871 INFO L78 Accepts]: Start accepts. Automaton has 6870 states and 7623 transitions. Word has length 586 [2020-07-21 01:32:54,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:54,872 INFO L479 AbstractCegarLoop]: Abstraction has 6870 states and 7623 transitions. [2020-07-21 01:32:54,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:32:54,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6870 states and 7623 transitions. [2020-07-21 01:32:54,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2020-07-21 01:32:54,886 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:54,887 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:32:55,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:55,103 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:32:55,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:32:55,104 INFO L82 PathProgramCache]: Analyzing trace with hash -375667145, now seen corresponding path program 1 times [2020-07-21 01:32:55,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:32:55,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491262389] [2020-07-21 01:32:55,105 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:32:55,420 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:32:55,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:32:55,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:32:55,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:32:55,475 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:32:55,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 1084 proven. 2 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2020-07-21 01:32:55,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:32:55,946 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:32:55,947 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:55,948 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:32:55,949 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:55,950 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 01:32:55,950 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:56,035 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:56,038 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 633 proven. 105 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2020-07-21 01:32:56,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491262389] [2020-07-21 01:32:56,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:32:56,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:32:56,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95303941] [2020-07-21 01:32:56,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:32:56,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:56,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:32:56,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:32:56,485 INFO L87 Difference]: Start difference. First operand 6870 states and 7623 transitions. Second operand 7 states. [2020-07-21 01:32:59,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:32:59,552 INFO L93 Difference]: Finished difference Result 13548 states and 15075 transitions. [2020-07-21 01:32:59,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:32:59,558 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 674 [2020-07-21 01:32:59,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:32:59,587 INFO L225 Difference]: With dead ends: 13548 [2020-07-21 01:32:59,588 INFO L226 Difference]: Without dead ends: 7234 [2020-07-21 01:32:59,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1357 GetRequests, 1347 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:32:59,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7234 states. [2020-07-21 01:32:59,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7234 to 7234. [2020-07-21 01:32:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7234 states. [2020-07-21 01:32:59,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 7846 transitions. [2020-07-21 01:32:59,770 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 7846 transitions. Word has length 674 [2020-07-21 01:32:59,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:32:59,772 INFO L479 AbstractCegarLoop]: Abstraction has 7234 states and 7846 transitions. [2020-07-21 01:32:59,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:32:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 7846 transitions. [2020-07-21 01:32:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-07-21 01:32:59,784 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:32:59,784 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:59,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:00,000 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:00,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:00,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1356072521, now seen corresponding path program 1 times [2020-07-21 01:33:00,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:00,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157210172] [2020-07-21 01:33:00,001 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:00,376 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:33:00,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:00,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:33:00,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1737 backedges. 1046 proven. 2 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-07-21 01:33:00,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:33:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1737 backedges. 525 proven. 76 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2020-07-21 01:33:01,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157210172] [2020-07-21 01:33:01,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:33:01,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:33:01,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970547751] [2020-07-21 01:33:01,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:33:01,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:01,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:33:01,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:33:01,150 INFO L87 Difference]: Start difference. First operand 7234 states and 7846 transitions. Second operand 6 states. [2020-07-21 01:33:02,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:02,631 INFO L93 Difference]: Finished difference Result 13906 states and 15129 transitions. [2020-07-21 01:33:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:33:02,636 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 790 [2020-07-21 01:33:02,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:02,657 INFO L225 Difference]: With dead ends: 13906 [2020-07-21 01:33:02,658 INFO L226 Difference]: Without dead ends: 7228 [2020-07-21 01:33:02,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1585 GetRequests, 1576 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:33:02,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7228 states. [2020-07-21 01:33:02,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7228 to 7044. [2020-07-21 01:33:02,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7044 states. [2020-07-21 01:33:02,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 7566 transitions. [2020-07-21 01:33:02,822 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 7566 transitions. Word has length 790 [2020-07-21 01:33:02,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:02,823 INFO L479 AbstractCegarLoop]: Abstraction has 7044 states and 7566 transitions. [2020-07-21 01:33:02,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:33:02,823 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 7566 transitions. [2020-07-21 01:33:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2020-07-21 01:33:02,844 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:02,845 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-07-21 01:33:03,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:03,052 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:03,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:03,053 INFO L82 PathProgramCache]: Analyzing trace with hash 817798151, now seen corresponding path program 1 times [2020-07-21 01:33:03,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:03,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783453677] [2020-07-21 01:33:03,054 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:03,493 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:33:03,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:03,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:33:03,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:03,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2269 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-07-21 01:33:03,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:33:03,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783453677] [2020-07-21 01:33:03,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:33:03,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:33:03,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598367992] [2020-07-21 01:33:03,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:33:03,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:03,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:33:03,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:33:03,875 INFO L87 Difference]: Start difference. First operand 7044 states and 7566 transitions. Second operand 3 states. [2020-07-21 01:33:04,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:04,850 INFO L93 Difference]: Finished difference Result 13532 states and 14578 transitions. [2020-07-21 01:33:04,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:33:04,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 889 [2020-07-21 01:33:04,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:04,877 INFO L225 Difference]: With dead ends: 13532 [2020-07-21 01:33:04,877 INFO L226 Difference]: Without dead ends: 7044 [2020-07-21 01:33:04,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 887 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 01:33:04,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2020-07-21 01:33:05,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 7044. [2020-07-21 01:33:05,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7044 states. [2020-07-21 01:33:05,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 7504 transitions. [2020-07-21 01:33:05,016 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 7504 transitions. Word has length 889 [2020-07-21 01:33:05,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:05,018 INFO L479 AbstractCegarLoop]: Abstraction has 7044 states and 7504 transitions. [2020-07-21 01:33:05,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:33:05,018 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 7504 transitions. [2020-07-21 01:33:05,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2020-07-21 01:33:05,039 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:05,041 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:33:05,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:05,247 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:05,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1901981288, now seen corresponding path program 1 times [2020-07-21 01:33:05,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:05,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500103209] [2020-07-21 01:33:05,250 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:05,590 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:33:05,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:05,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:33:05,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:05,676 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-21 01:33:05,677 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:33:05,678 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:33:05,715 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:33:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2575 backedges. 2070 proven. 10 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-07-21 01:33:06,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:33:06,469 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:33:06,470 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:06,470 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:33:06,471 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:33:06,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:33:06,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:06,517 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:33:06,518 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:33:06,519 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:33:06,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:06,653 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:06,709 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:06,710 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:33:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2575 backedges. 937 proven. 585 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2020-07-21 01:33:08,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500103209] [2020-07-21 01:33:08,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:33:08,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-21 01:33:08,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197705463] [2020-07-21 01:33:08,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 01:33:08,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:08,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 01:33:08,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-07-21 01:33:08,413 INFO L87 Difference]: Start difference. First operand 7044 states and 7504 transitions. Second operand 13 states. [2020-07-21 01:33:10,574 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2020-07-21 01:33:12,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:12,279 INFO L93 Difference]: Finished difference Result 13920 states and 14876 transitions. [2020-07-21 01:33:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-21 01:33:12,280 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 914 [2020-07-21 01:33:12,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:12,312 INFO L225 Difference]: With dead ends: 13920 [2020-07-21 01:33:12,313 INFO L226 Difference]: Without dead ends: 7432 [2020-07-21 01:33:12,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1863 GetRequests, 1833 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=252, Invalid=678, Unknown=0, NotChecked=0, Total=930 [2020-07-21 01:33:12,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7432 states. [2020-07-21 01:33:12,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7432 to 6868. [2020-07-21 01:33:12,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6868 states. [2020-07-21 01:33:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6868 states to 6868 states and 7299 transitions. [2020-07-21 01:33:12,488 INFO L78 Accepts]: Start accepts. Automaton has 6868 states and 7299 transitions. Word has length 914 [2020-07-21 01:33:12,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:12,489 INFO L479 AbstractCegarLoop]: Abstraction has 6868 states and 7299 transitions. [2020-07-21 01:33:12,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 01:33:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 6868 states and 7299 transitions. [2020-07-21 01:33:12,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2020-07-21 01:33:12,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:12,512 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1, 1, 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 01:33:12,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:12,727 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:12,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:12,728 INFO L82 PathProgramCache]: Analyzing trace with hash 65843647, now seen corresponding path program 1 times [2020-07-21 01:33:12,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:12,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200421059] [2020-07-21 01:33:12,728 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:13,313 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:33:13,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:13,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1299 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:33:13,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:13,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2575 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 2326 trivial. 0 not checked. [2020-07-21 01:33:13,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:33:13,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200421059] [2020-07-21 01:33:13,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:33:13,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:33:13,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023947106] [2020-07-21 01:33:13,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:33:13,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:13,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:33:13,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:33:13,746 INFO L87 Difference]: Start difference. First operand 6868 states and 7299 transitions. Second operand 3 states. [2020-07-21 01:33:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:14,687 INFO L93 Difference]: Finished difference Result 8324 states and 8830 transitions. [2020-07-21 01:33:14,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:33:14,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 925 [2020-07-21 01:33:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:14,690 INFO L225 Difference]: With dead ends: 8324 [2020-07-21 01:33:14,690 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:33:14,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 924 GetRequests, 923 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 01:33:14,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:33:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:33:14,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:33:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:33:14,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 925 [2020-07-21 01:33:14,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:14,711 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:33:14,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:33:14,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:33:14,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:33:14,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:14,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:33:16,129 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 229 [2020-07-21 01:33:16,487 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 229 [2020-07-21 01:33:18,428 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 273 DAG size of output: 82 [2020-07-21 01:33:19,792 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 235 DAG size of output: 66 [2020-07-21 01:33:21,143 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 235 DAG size of output: 66 [2020-07-21 01:33:21,149 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:33:21,149 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 01:33:21,150 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 01:33:21,151 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-21 01:33:21,151 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-21 01:33:21,151 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-21 01:33:21,151 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-21 01:33:21,151 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,151 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,151 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,151 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-21 01:33:21,151 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,152 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-21 01:33:21,153 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:33:21,153 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 01:33:21,153 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 01:33:21,153 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-21 01:33:21,153 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-21 01:33:21,153 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-21 01:33:21,153 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-21 01:33:21,153 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-21 01:33:21,154 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,154 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,154 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,154 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-21 01:33:21,154 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 01:33:21,154 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 01:33:21,154 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 01:33:21,155 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-21 01:33:21,155 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-21 01:33:21,155 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-21 01:33:21,155 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,155 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,155 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,156 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-21 01:33:21,156 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 01:33:21,156 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 01:33:21,156 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 01:33:21,156 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-21 01:33:21,156 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-21 01:33:21,156 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-21 01:33:21,156 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-21 01:33:21,157 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-21 01:33:21,157 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,157 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,157 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,157 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,157 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-21 01:33:21,157 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 01:33:21,157 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 01:33:21,158 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 01:33:21,158 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-21 01:33:21,158 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-21 01:33:21,158 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-21 01:33:21,158 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-21 01:33:21,158 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,158 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,158 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,159 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:33:21,159 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 01:33:21,159 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 01:33:21,159 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-21 01:33:21,159 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-21 01:33:21,159 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-21 01:33:21,159 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-21 01:33:21,159 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-21 01:33:21,160 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,160 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,160 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,160 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-21 01:33:21,160 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-21 01:33:21,160 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 01:33:21,160 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 01:33:21,160 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 01:33:21,160 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-21 01:33:21,161 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse8 (= ~a12~0 |old(~a12~0)|)) (.cse9 (= ~a24~0 |old(~a24~0)|)) (.cse10 (= ~a15~0 |old(~a15~0)|))) (let ((.cse4 (not (<= 10 |old(~a21~0)|))) (.cse5 (not (<= 23 |old(~a12~0)|))) (.cse0 (and .cse8 (<= ~a21~0 |old(~a21~0)|) .cse9 .cse10 (<= |old(~a21~0)| ~a21~0))) (.cse2 (not (<= 9 |old(~a21~0)|))) (.cse3 (not (<= 7 |old(~a15~0)|))) (.cse7 (and .cse8 .cse9 (= ~a21~0 |old(~a21~0)|) .cse10)) (.cse1 (not (<= |old(~a15~0)| 8))) (.cse6 (not (<= |old(~a21~0)| 7)))) (and (or (not (<= 0 |old(~a12~0)|)) .cse0 .cse1 (not (<= |old(~a12~0)| 80))) (or .cse0 (and (or (not (= 1 |old(~a24~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) .cse1 .cse2) (or (= 10 |old(~a21~0)|) .cse1 .cse2))) (or (= 6 |old(~a21~0)|) .cse0 .cse3 (not (<= |old(~a21~0)| 8))) (or .cse4 (not (<= |old(~a12~0)| 11)) .cse0 (not (< 0 (+ |old(~a12~0)| 43)))) (or .cse5 .cse0 .cse6) (or .cse4 (not (< (+ |old(~a12~0)| 42) 0)) .cse0 (not (<= 9 |old(~a15~0)|))) (or .cse5 .cse0 .cse2) (or .cse7 .cse3 .cse1) (or .cse7 .cse1 .cse6)))) [2020-07-21 01:33:21,161 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-21 01:33:21,161 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-21 01:33:21,161 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,161 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,161 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,162 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 01:33:21,162 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 01:33:21,162 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 01:33:21,162 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-21 01:33:21,162 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-21 01:33:21,162 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-21 01:33:21,162 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-21 01:33:21,162 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-21 01:33:21,162 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,163 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,163 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,163 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-21 01:33:21,163 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-21 01:33:21,163 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 01:33:21,163 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 01:33:21,163 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 01:33:21,163 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-21 01:33:21,164 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-21 01:33:21,164 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-21 01:33:21,164 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,164 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,164 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,164 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-21 01:33:21,164 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 01:33:21,165 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 01:33:21,165 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 01:33:21,165 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-21 01:33:21,165 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-21 01:33:21,165 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-21 01:33:21,165 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-21 01:33:21,165 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,165 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,165 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,166 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,167 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-21 01:33:21,167 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 01:33:21,167 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 01:33:21,167 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-21 01:33:21,167 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-21 01:33:21,167 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-21 01:33:21,167 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-21 01:33:21,167 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-21 01:33:21,168 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-21 01:33:21,169 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,170 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,171 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,171 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-21 01:33:21,171 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-21 01:33:21,171 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 01:33:21,171 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 01:33:21,171 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-21 01:33:21,171 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-21 01:33:21,171 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 01:33:21,172 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 01:33:21,173 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 01:33:21,174 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-21 01:33:21,174 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-21 01:33:21,174 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-21 01:33:21,174 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-21 01:33:21,174 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,174 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,174 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,174 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-21 01:33:21,174 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-21 01:33:21,175 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 01:33:21,175 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 01:33:21,175 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 01:33:21,175 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-21 01:33:21,175 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-21 01:33:21,175 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-21 01:33:21,175 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,175 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,175 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,176 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-21 01:33:21,176 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 01:33:21,176 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 01:33:21,176 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 01:33:21,176 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-21 01:33:21,176 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-21 01:33:21,176 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-21 01:33:21,176 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-21 01:33:21,177 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:33:21,178 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (+ ~a12~0 49) 0) (<= 7 ~a15~0) (<= ~a15~0 8) (= 1 ~a24~0) (<= 7 ~a21~0) (<= ~a21~0 7)) [2020-07-21 01:33:21,178 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:33:21,178 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:33:21,178 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 1 |old(~a24~0)|)) (and (= (+ ~a12~0 49) 0) (<= ~a21~0 |old(~a21~0)|) (= 1 ~a24~0) (<= 7 ~a21~0) (= ~a15~0 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (not (<= 7 |old(~a21~0)|)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= |old(~a21~0)| 7))) [2020-07-21 01:33:21,178 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-21 01:33:21,178 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse1 (<= 9 ~a21~0)) (.cse0 (<= 23 ~a12~0)) (.cse2 (<= ~a15~0 8)) (.cse4 (<= 9 ~a15~0)) (.cse3 (<= 10 ~a21~0))) (or (not (= 1 |old(~a24~0)|)) (and .cse0 .cse1) (and .cse2 (<= ~a21~0 7)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (and (<= ~a12~0 80) .cse2 (<= 0 ~a12~0)) (and (<= ~a12~0 11) (< 0 (+ ~a12~0 43)) .cse3) (not (= 7 |old(~a21~0)|)) (and .cse4 (<= ~a21~0 8) (not (= 6 ~a21~0))) (and (<= (+ ~a12~0 49) 0) (= 1 ~a24~0) .cse2 .cse1) (and (not (= 10 ~a21~0)) .cse2 .cse1) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse0 .cse4) (and (<= 7 ~a15~0) .cse2) (and (< (+ ~a12~0 42) 0) .cse4 .cse3))) [2020-07-21 01:33:21,179 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-21 01:33:21,179 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-21 01:33:21,179 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (<= 9 ~a21~0)) (.cse0 (<= 23 ~a12~0)) (.cse2 (<= ~a15~0 8)) (.cse4 (<= 9 ~a15~0)) (.cse3 (<= 10 ~a21~0))) (or (not (= 1 |old(~a24~0)|)) (and .cse0 .cse1) (and .cse2 (<= ~a21~0 7)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (and (<= ~a12~0 80) .cse2 (<= 0 ~a12~0)) (and (<= ~a12~0 11) (< 0 (+ ~a12~0 43)) .cse3) (not (= 7 |old(~a21~0)|)) (and .cse4 (<= ~a21~0 8) (not (= 6 ~a21~0))) (and (<= (+ ~a12~0 49) 0) (= 1 ~a24~0) .cse2 .cse1) (and (not (= 10 ~a21~0)) .cse2 .cse1) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse0 .cse4) (and (<= 7 ~a15~0) .cse2) (and (< (+ ~a12~0 42) 0) .cse4 .cse3))) [2020-07-21 01:33:21,179 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-21 01:33:21,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:33:21 BoogieIcfgContainer [2020-07-21 01:33:21,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:33:21,206 INFO L168 Benchmark]: Toolchain (without parser) took 64340.26 ms. Allocated memory was 142.1 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 98.1 MB in the beginning and 492.1 MB in the end (delta: -394.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-07-21 01:33:21,206 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:33:21,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 860.57 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 97.7 MB in the beginning and 165.1 MB in the end (delta: -67.5 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:33:21,207 INFO L168 Benchmark]: Boogie Preprocessor took 168.72 ms. Allocated memory is still 202.9 MB. Free memory was 165.1 MB in the beginning and 159.8 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:33:21,208 INFO L168 Benchmark]: RCFGBuilder took 1762.19 ms. Allocated memory was 202.9 MB in the beginning and 229.6 MB in the end (delta: 26.7 MB). Free memory was 159.8 MB in the beginning and 154.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:33:21,209 INFO L168 Benchmark]: TraceAbstraction took 61540.66 ms. Allocated memory was 229.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 154.2 MB in the beginning and 492.1 MB in the end (delta: -337.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-07-21 01:33:21,211 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 860.57 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 97.7 MB in the beginning and 165.1 MB in the end (delta: -67.5 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 168.72 ms. Allocated memory is still 202.9 MB. Free memory was 165.1 MB in the beginning and 159.8 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1762.19 ms. Allocated memory was 202.9 MB in the beginning and 229.6 MB in the end (delta: 26.7 MB). Free memory was 159.8 MB in the beginning and 154.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 61540.66 ms. Allocated memory was 229.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 154.2 MB in the beginning and 492.1 MB in the end (delta: -337.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a24)) || (23 <= a12 && 9 <= a21)) || (a15 <= 8 && a21 <= 7)) || !(7 <= \old(a15))) || !(\old(a15) <= 8)) || ((a12 <= 80 && a15 <= 8) && 0 <= a12)) || ((a12 <= 11 && 0 < a12 + 43) && 10 <= a21)) || !(7 == \old(a21))) || ((9 <= a15 && a21 <= 8) && !(6 == a21))) || (((a12 + 49 <= 0 && 1 == a24) && a15 <= 8) && 9 <= a21)) || ((!(10 == a21) && a15 <= 8) && 9 <= a21)) || !(0 == \old(a12) + 49)) || (23 <= a12 && 9 <= a15)) || (7 <= a15 && a15 <= 8)) || ((a12 + 42 < 0 && 9 <= a15) && 10 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 55.1s, OverallIterations: 17, TraceHistogramMax: 8, AutomataDifference: 33.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1330 SDtfs, 10057 SDslu, 671 SDs, 0 SdLazy, 16600 SolverSat, 2906 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12200 GetRequests, 12046 SyntacticMatches, 9 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7234occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 17 MinimizatonAttempts, 2237 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 338 PreInvPairs, 446 NumberOfFragments, 587 HoareAnnotationTreeSize, 338 FomulaSimplifications, 23223 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 18477 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 7849 NumberOfCodeBlocks, 6787 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 12057 ConstructedInterpolants, 0 QuantifiedInterpolants, 23113811 SizeOfPredicates, 37 NumberOfNonLiveVariables, 10508 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 24 InterpolantComputations, 10 PerfectInterpolantSequences, 22743/24359 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...