/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/Problem01_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:16:54,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:16:54,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:16:54,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 01:16:54,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:16:54,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:16:54,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:16:54,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:16:54,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:16:54,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:16:54,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:16:54,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:16:54,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:16:54,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:16:54,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:16:54,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:16:54,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:16:54,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:16:54,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:16:54,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:16:54,711 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 01:16:54,746 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:16:54,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:16:54,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:16:54,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:16:54,751 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:16:54,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:16:54,751 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:16:54,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:16:54,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:16:54,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:16:54,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:16:54,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:16:54,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:16:54,753 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:16:54,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:16:54,753 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:16:54,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:16:54,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:16:54,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:16:54,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:16:54,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:16:54,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:16:54,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:16:54,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:16:54,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:16:54,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:16:54,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:16:54,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:16:54,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:16:54,757 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 01:16:55,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:16:55,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:16:55,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:16:55,054 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:16:55,058 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:16:55,059 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2020-07-21 01:16:55,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29188dce/07f86f9228b447238b542fe3f5aab0db/FLAGe9c18ebfb [2020-07-21 01:16:55,720 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:16:55,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2020-07-21 01:16:55,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29188dce/07f86f9228b447238b542fe3f5aab0db/FLAGe9c18ebfb [2020-07-21 01:16:55,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29188dce/07f86f9228b447238b542fe3f5aab0db [2020-07-21 01:16:55,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:16:55,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:16:55,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:16:55,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:16:55,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:16:55,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:16:55" (1/1) ... [2020-07-21 01:16:55,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c24edc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:55, skipping insertion in model container [2020-07-21 01:16:55,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:16:55" (1/1) ... [2020-07-21 01:16:55,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:16:56,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:16:56,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:16:56,475 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:16:56,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:16:56,738 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:16:56,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56 WrapperNode [2020-07-21 01:16:56,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:16:56,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:16:56,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:16:56,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:16:56,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56" (1/1) ... [2020-07-21 01:16:56,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56" (1/1) ... [2020-07-21 01:16:56,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56" (1/1) ... [2020-07-21 01:16:56,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56" (1/1) ... [2020-07-21 01:16:56,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56" (1/1) ... [2020-07-21 01:16:56,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56" (1/1) ... [2020-07-21 01:16:56,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56" (1/1) ... [2020-07-21 01:16:56,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:16:56,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:16:56,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:16:56,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:16:56,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56" (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 01:16:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:16:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:16:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:16:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:16:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:16:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:16:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:16:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:16:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:16:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:16:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:16:58,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:16:58,039 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:16:58,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:16:58 BoogieIcfgContainer [2020-07-21 01:16:58,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:16:58,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:16:58,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:16:58,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:16:58,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:16:55" (1/3) ... [2020-07-21 01:16:58,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:16:58, skipping insertion in model container [2020-07-21 01:16:58,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:16:56" (2/3) ... [2020-07-21 01:16:58,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:16:58, skipping insertion in model container [2020-07-21 01:16:58,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:16:58" (3/3) ... [2020-07-21 01:16:58,054 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label00.c [2020-07-21 01:16:58,066 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:16:58,075 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:16:58,090 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:16:58,117 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:16:58,117 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:16:58,117 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:16:58,117 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:16:58,118 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:16:58,118 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:16:58,118 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:16:58,118 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:16:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 01:16:58,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-21 01:16:58,154 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:16:58,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:16:58,156 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:16:58,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:16:58,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1845535338, now seen corresponding path program 1 times [2020-07-21 01:16:58,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:16:58,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883823255] [2020-07-21 01:16:58,175 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 01:16:58,378 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:16:58,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:16:58,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 01:16:58,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:16:58,838 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 01:16:58,977 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 01:16:59,401 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 01:16:59,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:16:59,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883823255] [2020-07-21 01:16:59,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:16:59,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 01:16:59,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351839048] [2020-07-21 01:16:59,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:16:59,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:16:59,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:16:59,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:16:59,429 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 01:17:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:01,140 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 01:17:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:17:01,144 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 114 [2020-07-21 01:17:01,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:01,156 INFO L225 Difference]: With dead ends: 472 [2020-07-21 01:17:01,156 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 01:17:01,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 01:17:01,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 01:17:01,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 01:17:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 01:17:01,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 01:17:01,232 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 114 [2020-07-21 01:17:01,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:01,234 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 01:17:01,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:17:01,234 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 01:17:01,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 01:17:01,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:01,246 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 01:17:01,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:01,460 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:01,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:01,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1917115313, now seen corresponding path program 1 times [2020-07-21 01:17:01,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:01,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266569256] [2020-07-21 01:17:01,462 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 01:17:01,563 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:17:01,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:01,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 01:17:01,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:01,877 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2020-07-21 01:17:02,230 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:17:02,234 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:17:02,234 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:17:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:02,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:03,002 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 01:17:03,283 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:17:03,411 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 01:17:03,415 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 01:17:03,417 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 01:17:03,418 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:17:03,420 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:17:03,421 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:03,422 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:17:03,426 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:17:03,427 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:17:03,429 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:03,436 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:03,438 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:03,440 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 01:17:03,441 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:17:03,442 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:17:03,443 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:03,447 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:03,448 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:03,449 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:03,450 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:03,452 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:03,453 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:03,459 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:17:03,460 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:03,462 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:17:03,463 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:04,103 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 01:17:04,106 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 01:17:04,107 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:17:04,180 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:17:04,181 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:04,245 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:04,271 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:04,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:04,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266569256] [2020-07-21 01:17:04,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:04,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 01:17:04,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090028789] [2020-07-21 01:17:04,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 01:17:04,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:04,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 01:17:04,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 01:17:04,406 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 01:17:05,303 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 01:17:05,787 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:17:06,069 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 01:17:06,516 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 01:17:06,732 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 01:17:07,118 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:17:09,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:09,128 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 01:17:09,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 01:17:09,129 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 122 [2020-07-21 01:17:09,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:09,136 INFO L225 Difference]: With dead ends: 588 [2020-07-21 01:17:09,136 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 01:17:09,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 216 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 01:17:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 01:17:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 01:17:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 01:17:09,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 01:17:09,211 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 122 [2020-07-21 01:17:09,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:09,212 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 01:17:09,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 01:17:09,212 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 01:17:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 01:17:09,217 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:09,217 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 01:17:09,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:09,418 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:09,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:09,419 INFO L82 PathProgramCache]: Analyzing trace with hash -526425041, now seen corresponding path program 1 times [2020-07-21 01:17:09,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:09,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760480570] [2020-07-21 01:17:09,421 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 01:17:09,544 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:17:09,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:09,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:17:09,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:09,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:17:09,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760480570] [2020-07-21 01:17:09,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:17:09,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:17:09,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56212392] [2020-07-21 01:17:09,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:17:09,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:09,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:17:09,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:17:09,610 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 01:17:10,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:10,198 INFO L93 Difference]: Finished difference Result 1042 states and 1433 transitions. [2020-07-21 01:17:10,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:17:10,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-21 01:17:10,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:10,213 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 01:17:10,213 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 01:17:10,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 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 01:17:10,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 01:17:10,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 01:17:10,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 01:17:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 897 transitions. [2020-07-21 01:17:10,242 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 897 transitions. Word has length 125 [2020-07-21 01:17:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:10,242 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 897 transitions. [2020-07-21 01:17:10,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:17:10,243 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 897 transitions. [2020-07-21 01:17:10,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 01:17:10,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:10,245 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:10,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:10,451 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:10,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:10,452 INFO L82 PathProgramCache]: Analyzing trace with hash 925525486, now seen corresponding path program 1 times [2020-07-21 01:17:10,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:10,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52278833] [2020-07-21 01:17:10,453 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 01:17:10,554 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:17:10,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:10,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:17:10,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:10,616 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:10,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:10,825 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:17:10,875 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:10,876 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 01:17:10,877 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:10,878 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:17:10,878 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:10,879 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:10,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52278833] [2020-07-21 01:17:10,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:10,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:17:10,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186765608] [2020-07-21 01:17:10,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:17:10,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:10,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:17:10,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:17:10,988 INFO L87 Difference]: Start difference. First operand 691 states and 897 transitions. Second operand 7 states. [2020-07-21 01:17:12,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:12,425 INFO L93 Difference]: Finished difference Result 1933 states and 2552 transitions. [2020-07-21 01:17:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:17:12,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-07-21 01:17:12,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:12,436 INFO L225 Difference]: With dead ends: 1933 [2020-07-21 01:17:12,437 INFO L226 Difference]: Without dead ends: 1169 [2020-07-21 01:17:12,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 276 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:17:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-07-21 01:17:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1106. [2020-07-21 01:17:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-07-21 01:17:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1302 transitions. [2020-07-21 01:17:12,501 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1302 transitions. Word has length 140 [2020-07-21 01:17:12,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:12,503 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1302 transitions. [2020-07-21 01:17:12,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:17:12,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1302 transitions. [2020-07-21 01:17:12,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-21 01:17:12,513 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:12,513 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:12,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:12,729 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:12,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:12,729 INFO L82 PathProgramCache]: Analyzing trace with hash -2022557590, now seen corresponding path program 1 times [2020-07-21 01:17:12,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:12,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260491968] [2020-07-21 01:17:12,730 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 01:17:12,852 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:17:12,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:12,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-21 01:17:12,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:12,953 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 01:17:12,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:13,217 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 01:17:13,277 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:13,283 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:13,285 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:17:13,287 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:13,288 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:13,289 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:17:13,290 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 01:17:13,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260491968] [2020-07-21 01:17:13,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:17:13,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-07-21 01:17:13,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789407662] [2020-07-21 01:17:13,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:17:13,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:13,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:17:13,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:17:13,542 INFO L87 Difference]: Start difference. First operand 1106 states and 1302 transitions. Second operand 5 states. [2020-07-21 01:17:14,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:14,370 INFO L93 Difference]: Finished difference Result 3121 states and 3747 transitions. [2020-07-21 01:17:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:17:14,372 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-07-21 01:17:14,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:14,384 INFO L225 Difference]: With dead ends: 3121 [2020-07-21 01:17:14,384 INFO L226 Difference]: Without dead ends: 2081 [2020-07-21 01:17:14,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 332 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:17:14,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2020-07-21 01:17:14,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1944. [2020-07-21 01:17:14,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1944 states. [2020-07-21 01:17:14,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2231 transitions. [2020-07-21 01:17:14,457 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2231 transitions. Word has length 170 [2020-07-21 01:17:14,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:14,458 INFO L479 AbstractCegarLoop]: Abstraction has 1944 states and 2231 transitions. [2020-07-21 01:17:14,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:17:14,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2231 transitions. [2020-07-21 01:17:14,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-21 01:17:14,464 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:14,464 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:14,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:14,680 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:14,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:14,680 INFO L82 PathProgramCache]: Analyzing trace with hash 965515141, now seen corresponding path program 1 times [2020-07-21 01:17:14,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:14,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474626263] [2020-07-21 01:17:14,682 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 01:17:14,796 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:17:14,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:14,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 01:17:14,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:14,830 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:17:14,831 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:17:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:17:14,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:15,122 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:17:15,178 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:15,180 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:15,180 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:17:15,181 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:15,181 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:17:15,182 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:15,183 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:15,184 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:15,184 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:15,185 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:15,186 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:15,216 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:15,271 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:15,274 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 01:17:15,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474626263] [2020-07-21 01:17:15,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:15,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 01:17:15,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262192510] [2020-07-21 01:17:15,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:17:15,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:15,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:17:15,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:17:15,481 INFO L87 Difference]: Start difference. First operand 1944 states and 2231 transitions. Second operand 8 states. [2020-07-21 01:17:16,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:16,564 INFO L93 Difference]: Finished difference Result 4944 states and 5832 transitions. [2020-07-21 01:17:16,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:17:16,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-07-21 01:17:16,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:16,583 INFO L225 Difference]: With dead ends: 4944 [2020-07-21 01:17:16,583 INFO L226 Difference]: Without dead ends: 3066 [2020-07-21 01:17:16,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 367 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:17:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3066 states. [2020-07-21 01:17:16,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3066 to 2778. [2020-07-21 01:17:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2778 states. [2020-07-21 01:17:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3202 transitions. [2020-07-21 01:17:16,716 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3202 transitions. Word has length 187 [2020-07-21 01:17:16,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:16,717 INFO L479 AbstractCegarLoop]: Abstraction has 2778 states and 3202 transitions. [2020-07-21 01:17:16,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:17:16,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3202 transitions. [2020-07-21 01:17:16,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-21 01:17:16,726 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:16,726 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 01:17:16,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:16,940 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:16,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:16,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1546983835, now seen corresponding path program 1 times [2020-07-21 01:17:16,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:16,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816949937] [2020-07-21 01:17:16,942 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 01:17:17,066 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:17:17,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:17,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:17:17,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:17:17,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 141 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:17:17,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816949937] [2020-07-21 01:17:17,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:17,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:17:17,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776412893] [2020-07-21 01:17:17,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:17:17,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:17,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:17:17,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:17:17,191 INFO L87 Difference]: Start difference. First operand 2778 states and 3202 transitions. Second operand 7 states. [2020-07-21 01:17:18,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:18,442 INFO L93 Difference]: Finished difference Result 5901 states and 6849 transitions. [2020-07-21 01:17:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 01:17:18,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-07-21 01:17:18,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:18,462 INFO L225 Difference]: With dead ends: 5901 [2020-07-21 01:17:18,463 INFO L226 Difference]: Without dead ends: 3189 [2020-07-21 01:17:18,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 439 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:17:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2020-07-21 01:17:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 2232. [2020-07-21 01:17:18,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2232 states. [2020-07-21 01:17:18,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 2528 transitions. [2020-07-21 01:17:18,553 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 2528 transitions. Word has length 221 [2020-07-21 01:17:18,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:18,554 INFO L479 AbstractCegarLoop]: Abstraction has 2232 states and 2528 transitions. [2020-07-21 01:17:18,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:17:18,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 2528 transitions. [2020-07-21 01:17:18,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-07-21 01:17:18,561 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:18,562 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 01:17:18,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:18,776 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:18,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:18,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1414099281, now seen corresponding path program 1 times [2020-07-21 01:17:18,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:18,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087679764] [2020-07-21 01:17:18,777 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 01:17:18,915 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:17:18,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:18,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:17:18,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:17:18,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:19,191 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 01:17:19,233 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:19,234 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:19,234 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:19,235 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 01:17:19,235 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:19,236 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:17:19,236 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:19,361 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:17:19,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087679764] [2020-07-21 01:17:19,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:19,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:17:19,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328767950] [2020-07-21 01:17:19,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:17:19,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:19,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:17:19,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:17:19,364 INFO L87 Difference]: Start difference. First operand 2232 states and 2528 transitions. Second operand 7 states. [2020-07-21 01:17:20,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:20,738 INFO L93 Difference]: Finished difference Result 5782 states and 6646 transitions. [2020-07-21 01:17:20,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:17:20,738 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-07-21 01:17:20,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:20,754 INFO L225 Difference]: With dead ends: 5782 [2020-07-21 01:17:20,755 INFO L226 Difference]: Without dead ends: 3616 [2020-07-21 01:17:20,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 484 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:17:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3616 states. [2020-07-21 01:17:20,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3616 to 3475. [2020-07-21 01:17:20,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3475 states. [2020-07-21 01:17:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 3945 transitions. [2020-07-21 01:17:20,844 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 3945 transitions. Word has length 243 [2020-07-21 01:17:20,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:20,845 INFO L479 AbstractCegarLoop]: Abstraction has 3475 states and 3945 transitions. [2020-07-21 01:17:20,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:17:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 3945 transitions. [2020-07-21 01:17:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-07-21 01:17:20,855 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:20,855 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 01:17:21,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:21,070 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:21,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:21,071 INFO L82 PathProgramCache]: Analyzing trace with hash 20807594, now seen corresponding path program 1 times [2020-07-21 01:17:21,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:21,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14784062] [2020-07-21 01:17:21,071 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 01:17:21,234 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:17:21,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:21,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:17:21,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 01:17:21,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:17:21,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14784062] [2020-07-21 01:17:21,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:17:21,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:17:21,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911538768] [2020-07-21 01:17:21,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:17:21,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:21,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:17:21,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:17:21,291 INFO L87 Difference]: Start difference. First operand 3475 states and 3945 transitions. Second operand 3 states. [2020-07-21 01:17:21,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:21,799 INFO L93 Difference]: Finished difference Result 5635 states and 6411 transitions. [2020-07-21 01:17:21,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:17:21,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2020-07-21 01:17:21,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:21,811 INFO L225 Difference]: With dead ends: 5635 [2020-07-21 01:17:21,812 INFO L226 Difference]: Without dead ends: 2226 [2020-07-21 01:17:21,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 254 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 01:17:21,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2020-07-21 01:17:21,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2091. [2020-07-21 01:17:21,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-07-21 01:17:21,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2305 transitions. [2020-07-21 01:17:21,873 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2305 transitions. Word has length 256 [2020-07-21 01:17:21,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:21,873 INFO L479 AbstractCegarLoop]: Abstraction has 2091 states and 2305 transitions. [2020-07-21 01:17:21,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:17:21,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2305 transitions. [2020-07-21 01:17:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-21 01:17:21,881 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:21,882 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:17:22,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:22,095 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:22,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:22,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1510705709, now seen corresponding path program 1 times [2020-07-21 01:17:22,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:22,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349883087] [2020-07-21 01:17:22,096 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 01:17:22,294 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:17:22,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:22,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:17:22,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-07-21 01:17:22,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:17:22,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349883087] [2020-07-21 01:17:22,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:17:22,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:17:22,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980946907] [2020-07-21 01:17:22,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:17:22,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:22,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:17:22,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:17:22,371 INFO L87 Difference]: Start difference. First operand 2091 states and 2305 transitions. Second operand 3 states. [2020-07-21 01:17:22,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:22,895 INFO L93 Difference]: Finished difference Result 4114 states and 4541 transitions. [2020-07-21 01:17:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:17:22,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2020-07-21 01:17:22,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:22,898 INFO L225 Difference]: With dead ends: 4114 [2020-07-21 01:17:22,898 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:17:22,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 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 01:17:22,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:17:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:17:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:17:22,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:17:22,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2020-07-21 01:17:22,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:22,907 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:17:22,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:17:22,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:17:22,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:17:23,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:23,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:17:23,677 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2020-07-21 01:17:25,784 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 218 DAG size of output: 129 [2020-07-21 01:17:26,499 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 64 [2020-07-21 01:17:27,101 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 64 [2020-07-21 01:17:27,105 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:17:27,105 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (let ((.cse2 (= 1 |old(~a20~0)|)) (.cse3 (= 1 |old(~a21~0)|))) (or (let ((.cse0 (= 1 ~a20~0)) (.cse1 (= 1 ~a21~0))) (and (or (not .cse0) .cse1) (or .cse0 (not .cse1)))) (and (not .cse2) .cse3) (and .cse2 (not .cse3)))) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 01:17:27,105 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:17:27,105 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 01:17:27,106 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,107 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,108 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,108 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 01:17:27,108 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 01:17:27,108 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 01:17:27,108 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 01:17:27,108 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 01:17:27,108 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 01:17:27,108 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 01:17:27,108 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 01:17:27,109 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 01:17:27,109 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 01:17:27,109 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 01:17:27,109 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 500) no Hoare annotation was computed. [2020-07-21 01:17:27,109 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 01:17:27,109 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 01:17:27,109 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 01:17:27,109 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 01:17:27,109 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 01:17:27,110 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 01:17:27,111 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 01:17:27,112 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 01:17:27,112 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 01:17:27,112 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 01:17:27,112 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 01:17:27,112 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 01:17:27,112 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 01:17:27,112 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 01:17:27,112 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 01:17:27,112 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 01:17:27,113 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 01:17:27,113 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,113 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,113 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,113 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,113 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,113 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 01:17:27,113 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 01:17:27,113 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,114 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 01:17:27,115 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 01:17:27,116 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 01:17:27,117 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 01:17:27,117 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 01:17:27,117 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 01:17:27,117 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 01:17:27,117 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,117 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,117 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,117 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,117 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,118 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 01:17:27,118 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 01:17:27,118 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 01:17:27,118 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 01:17:27,118 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 01:17:27,118 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 01:17:27,118 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 01:17:27,118 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 01:17:27,118 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 01:17:27,119 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 01:17:27,119 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse35 (= 1 |old(~a7~0)|)) (.cse34 (= 1 |old(~a21~0)|)) (.cse33 (= 1 |old(~a20~0)|))) (let ((.cse32 (not .cse33)) (.cse4 (not .cse34)) (.cse2 (not .cse35)) (.cse31 (= 1 ~a20~0)) (.cse15 (<= ~a16~0 |old(~a16~0)|)) (.cse19 (<= |old(~a16~0)| ~a16~0)) (.cse1 (= ~a21~0 |old(~a21~0)|)) (.cse16 (= ~a7~0 |old(~a7~0)|)) (.cse17 (= ~a17~0 |old(~a17~0)|)) (.cse30 (<= ~a16~0 5)) (.cse20 (= 1 ~a21~0)) (.cse18 (< 4 ~a16~0))) (let ((.cse7 (not (<= |old(~a21~0)| 0))) (.cse3 (not (<= |old(~a16~0)| 4))) (.cse12 (and .cse16 .cse17 .cse30 .cse20 .cse18)) (.cse22 (and .cse15 .cse16 .cse17 .cse19 .cse1)) (.cse24 (= 1 ~a17~0)) (.cse26 (not (<= 6 |old(~a16~0)|))) (.cse5 (and (not .cse31) (not .cse20))) (.cse6 (and .cse20 .cse31)) (.cse21 (and (or .cse35 .cse4) (or .cse2 .cse34))) (.cse23 (or .cse31 (and .cse32 .cse34) (and .cse33 .cse4))) (.cse0 (= 1 ~a7~0)) (.cse13 (not (<= |old(~a17~0)| 0))) (.cse27 (not (= 15 |old(~a8~0)|))) (.cse10 (not (<= |old(~a16~0)| 5))) (.cse29 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse28 (= 15 ~a8~0)) (.cse9 (not (<= |old(~a7~0)| 0))) (.cse11 (not (< 4 |old(~a16~0)|))) (.cse25 (not (= 1 |old(~a17~0)|))) (.cse8 (and (or .cse32 .cse4) (or .cse33 .cse34))) (.cse14 (not (= 8 ~a12~0)))) (and (or (and .cse0 .cse1 (<= ~a16~0 4)) .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse8) (or .cse9 .cse10 .cse11 .cse12 .cse4 .cse13 .cse14) (or .cse9 .cse11 .cse8 (and .cse15 .cse16 .cse17 .cse18 .cse1 (or .cse5 .cse6)) .cse13 .cse14) (or .cse9 .cse3 (and .cse15 .cse16 .cse17 .cse19 .cse20) .cse13 .cse14 .cse21) (or .cse22 .cse7) (or (and .cse15 .cse23 .cse16 .cse19 .cse24 .cse1) .cse9 .cse25 .cse3 .cse14 .cse21) (or .cse9 .cse10 .cse11 .cse25 .cse12 .cse4 .cse14) (or .cse22 .cse9 .cse26 .cse13 .cse14) (or .cse9 (and .cse15 .cse16 .cse19 .cse24 .cse1) .cse25 .cse4 .cse26 .cse14) (or .cse27 (and (<= ~a20~0 0) .cse28) .cse9 .cse10 .cse11 (not (<= |old(~a20~0)| 0)) .cse25 .cse29 .cse4 .cse14) (or .cse5 .cse6 .cse9 .cse8 .cse13 .cse14 .cse21) (or .cse2 .cse10 .cse11 (and .cse23 .cse0 .cse17 .cse30 .cse18 .cse1) .cse4 .cse13) (or .cse27 .cse9 .cse10 .cse11 .cse25 .cse8 .cse29 .cse4 .cse28 .cse14) (or .cse9 .cse11 .cse25 .cse8 .cse31 .cse4 .cse14))))) [2020-07-21 01:17:27,119 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 01:17:27,119 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,120 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,120 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,120 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,120 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 01:17:27,120 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,120 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,120 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 01:17:27,120 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 01:17:27,120 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 01:17:27,121 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,122 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,122 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,122 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,122 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,122 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 01:17:27,122 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,122 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 01:17:27,122 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 01:17:27,122 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 01:17:27,123 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 01:17:27,124 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 01:17:27,124 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,124 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,124 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,124 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,124 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,124 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:17:27,124 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 01:17:27,124 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 01:17:27,125 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 01:17:27,125 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 01:17:27,125 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 01:17:27,125 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 01:17:27,125 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 01:17:27,125 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 01:17:27,125 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 01:17:27,125 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 01:17:27,125 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:17:27,126 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 01:17:27,126 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:17:27,126 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:17:27,126 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0))) [2020-07-21 01:17:27,126 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:17:27,126 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0)) (.cse8 (<= 6 ~a16~0)) (.cse1 (<= ~a17~0 0)) (.cse10 (<= ~a16~0 4)) (.cse4 (not (= 1 |old(~a7~0)|))) (.cse5 (<= ~a7~0 0)) (.cse9 (= 1 ~a17~0)) (.cse2 (<= ~a16~0 5)) (.cse3 (= 1 ~a21~0)) (.cse6 (< 4 ~a16~0)) (.cse7 (= 8 ~a12~0))) (or (<= ~a21~0 0) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5 .cse2 .cse3 .cse6 .cse7) (and .cse8 .cse5 .cse9 .cse3 .cse7) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse4 .cse5 .cse9 .cse3 .cse10 .cse7) (and .cse0 .cse3 .cse10) (not (= 1 |old(~a20~0)|)) (not (<= |old(~a16~0)| 5)) (and .cse1 .cse8 .cse5 .cse7) (and .cse1 .cse5 (not (= 1 ~a20~0)) .cse6) (and .cse4 .cse1 .cse5 .cse3 .cse10 .cse7) (not (= 1 |old(~a21~0)|)) (not .cse7) (and .cse4 .cse5 .cse9 .cse2 .cse3 .cse6 .cse7))) [2020-07-21 01:17:27,127 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 01:17:27,127 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 01:17:27,127 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0)) (.cse8 (<= 6 ~a16~0)) (.cse1 (<= ~a17~0 0)) (.cse10 (<= ~a16~0 4)) (.cse4 (not (= 1 |old(~a7~0)|))) (.cse5 (<= ~a7~0 0)) (.cse9 (= 1 ~a17~0)) (.cse2 (<= ~a16~0 5)) (.cse3 (= 1 ~a21~0)) (.cse6 (< 4 ~a16~0)) (.cse7 (= 8 ~a12~0))) (or (<= ~a21~0 0) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5 .cse2 .cse3 .cse6 .cse7) (and .cse8 .cse5 .cse9 .cse3 .cse7) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse4 .cse5 .cse9 .cse3 .cse10 .cse7) (and .cse0 .cse3 .cse10) (not (= 1 |old(~a20~0)|)) (not (<= |old(~a16~0)| 5)) (and .cse1 .cse8 .cse5 .cse7) (and .cse1 .cse5 (not (= 1 ~a20~0)) .cse6) (and .cse4 .cse1 .cse5 .cse3 .cse10 .cse7) (not (= 1 |old(~a21~0)|)) (not .cse7) (and .cse4 .cse5 .cse9 .cse2 .cse3 .cse6 .cse7))) [2020-07-21 01:17:27,127 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:17:27,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:17:27 BoogieIcfgContainer [2020-07-21 01:17:27,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:17:27,152 INFO L168 Benchmark]: Toolchain (without parser) took 31173.44 ms. Allocated memory was 146.8 MB in the beginning and 562.0 MB in the end (delta: 415.2 MB). Free memory was 103.4 MB in the beginning and 377.9 MB in the end (delta: -274.5 MB). Peak memory consumption was 402.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:17:27,153 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:17:27,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.59 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 103.0 MB in the beginning and 173.8 MB in the end (delta: -70.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:17:27,155 INFO L168 Benchmark]: Boogie Preprocessor took 132.02 ms. Allocated memory is still 207.6 MB. Free memory was 173.8 MB in the beginning and 169.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:17:27,155 INFO L168 Benchmark]: RCFGBuilder took 1174.09 ms. Allocated memory was 207.6 MB in the beginning and 238.0 MB in the end (delta: 30.4 MB). Free memory was 169.0 MB in the beginning and 178.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:17:27,156 INFO L168 Benchmark]: TraceAbstraction took 29103.53 ms. Allocated memory was 238.0 MB in the beginning and 562.0 MB in the end (delta: 324.0 MB). Free memory was 177.5 MB in the beginning and 377.9 MB in the end (delta: -200.4 MB). Peak memory consumption was 385.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:17:27,159 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.59 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 103.0 MB in the beginning and 173.8 MB in the end (delta: -70.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.02 ms. Allocated memory is still 207.6 MB. Free memory was 173.8 MB in the beginning and 169.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1174.09 ms. Allocated memory was 207.6 MB in the beginning and 238.0 MB in the end (delta: 30.4 MB). Free memory was 169.0 MB in the beginning and 178.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29103.53 ms. Allocated memory was 238.0 MB in the beginning and 562.0 MB in the end (delta: 324.0 MB). Free memory was 177.5 MB in the beginning and 377.9 MB in the end (delta: -200.4 MB). Peak memory consumption was 385.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 500]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((a21 <= 0 || !(15 == \old(a8))) || !(\old(a7) <= 0)) || (((1 == a7 && a17 <= 0) && a16 <= 5) && 1 == a21)) || ((((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && a16 <= 5) && 1 == a21) && 4 < a16) && 8 == a12)) || ((((6 <= a16 && a7 <= 0) && 1 == a17) && 1 == a21) && 8 == a12)) || !(4 < \old(a16))) || !(1 == \old(a17))) || (((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 1 == a21) && a16 <= 4) && 8 == a12)) || ((1 == a7 && 1 == a21) && a16 <= 4)) || !(1 == \old(a20))) || !(\old(a16) <= 5)) || (((a17 <= 0 && 6 <= a16) && a7 <= 0) && 8 == a12)) || (((a17 <= 0 && a7 <= 0) && !(1 == a20)) && 4 < a16)) || (((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && 1 == a21) && a16 <= 4) && 8 == a12)) || !(1 == \old(a21))) || !(8 == a12)) || ((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && a16 <= 5) && 1 == a21) && 4 < a16) && 8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.0s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 762 SDtfs, 4163 SDslu, 430 SDs, 0 SdLazy, 8965 SolverSat, 1164 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2984 GetRequests, 2869 SyntacticMatches, 10 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3475occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 1755 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 134 PreInvPairs, 168 NumberOfFragments, 1223 HoareAnnotationTreeSize, 134 FomulaSimplifications, 3236 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8484 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 1854 NumberOfCodeBlocks, 1347 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2921 ConstructedInterpolants, 0 QuantifiedInterpolants, 3318002 SizeOfPredicates, 66 NumberOfNonLiveVariables, 4295 ConjunctsInSsa, 203 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 1675/1725 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...