/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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:50:25,009 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:50:25,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:50:25,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:50:25,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:50:25,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:50:25,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:50:25,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:50:25,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:50:25,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:50:25,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:50:25,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:50:25,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:50:25,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:50:25,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:50:25,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:50:25,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:50:25,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:50:25,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:50:25,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:50:25,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:50:25,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:50:25,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:50:25,119 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:50:25,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:50:25,119 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:50:25,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:50:25,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:50:25,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:50:25,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:50:25,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:50:25,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:50:25,121 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:50:25,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:50:25,121 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:50:25,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:50:25,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:50:25,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:50:25,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:50:25,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:50:25,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:50:25,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:50:25,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:50:25,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:50:25,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:50:25,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:25,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:50:25,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:50:25,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:50:25,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:50:25,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:50:25,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:50:25,461 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:50:25,461 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:50:25,462 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-07-21 22:50:25,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bb755221/5d1d700943dd4382a839ad0f38de4920/FLAGced58e9f2 [2020-07-21 22:50:26,094 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:50:26,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-07-21 22:50:26,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bb755221/5d1d700943dd4382a839ad0f38de4920/FLAGced58e9f2 [2020-07-21 22:50:26,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bb755221/5d1d700943dd4382a839ad0f38de4920 [2020-07-21 22:50:26,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:50:26,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:50:26,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:50:26,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:50:26,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:50:26,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:50:26" (1/1) ... [2020-07-21 22:50:26,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51bcc2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:26, skipping insertion in model container [2020-07-21 22:50:26,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:50:26" (1/1) ... [2020-07-21 22:50:26,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:50:26,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:50:26,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:50:26,828 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:50:27,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:50:27,056 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:50:27,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27 WrapperNode [2020-07-21 22:50:27,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:50:27,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:50:27,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:50:27,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:50:27,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27" (1/1) ... [2020-07-21 22:50:27,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27" (1/1) ... [2020-07-21 22:50:27,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27" (1/1) ... [2020-07-21 22:50:27,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27" (1/1) ... [2020-07-21 22:50:27,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27" (1/1) ... [2020-07-21 22:50:27,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27" (1/1) ... [2020-07-21 22:50:27,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27" (1/1) ... [2020-07-21 22:50:27,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:50:27,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:50:27,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:50:27,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:50:27,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:50:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:50:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:50:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:50:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:50:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:50:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:50:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:50:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:50:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:50:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:50:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:50:28,525 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:50:28,525 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:50:28,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:50:28 BoogieIcfgContainer [2020-07-21 22:50:28,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:50:28,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:50:28,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:50:28,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:50:28,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:50:26" (1/3) ... [2020-07-21 22:50:28,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d48a27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:50:28, skipping insertion in model container [2020-07-21 22:50:28,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:50:27" (2/3) ... [2020-07-21 22:50:28,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d48a27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:50:28, skipping insertion in model container [2020-07-21 22:50:28,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:50:28" (3/3) ... [2020-07-21 22:50:28,540 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-07-21 22:50:28,551 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:50:28,559 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:50:28,574 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:50:28,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:50:28,601 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:50:28,601 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:50:28,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:50:28,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:50:28,602 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:50:28,602 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:50:28,602 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:50:28,629 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 22:50:28,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 22:50:28,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:28,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:50:28,655 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:28,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:28,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2020-07-21 22:50:28,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:28,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891557488] [2020-07-21 22:50:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:28,892 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:50:28,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:28,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 22:50:28,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:29,248 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 22:50:29,398 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 22:50:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:50:29,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:50:29,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891557488] [2020-07-21 22:50:29,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:50:29,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 22:50:29,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99860586] [2020-07-21 22:50:29,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 22:50:29,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:29,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 22:50:29,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:50:29,823 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 22:50:31,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:31,546 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 22:50:31,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:50:31,548 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 122 [2020-07-21 22:50:31,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:31,563 INFO L225 Difference]: With dead ends: 472 [2020-07-21 22:50:31,563 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 22:50:31,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 22:50:31,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 22:50:31,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 22:50:31,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 22:50:31,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 22:50:31,636 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 122 [2020-07-21 22:50:31,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:31,637 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 22:50:31,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 22:50:31,637 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 22:50:31,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 22:50:31,644 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:31,644 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:50:31,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:31,859 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:31,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1289919151, now seen corresponding path program 1 times [2020-07-21 22:50:31,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:31,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432366960] [2020-07-21 22:50:31,862 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:31,974 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:50:31,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:31,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 22:50:32,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:32,310 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2020-07-21 22:50:32,696 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:50:32,700 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:50:32,701 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:50:32,799 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 22:50:32,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:50:33,508 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 22:50:33,669 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:50:33,812 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:50:33,942 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 22:50:33,947 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 22:50:33,949 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 22:50:33,951 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:50:33,952 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:50:33,954 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:50:33,955 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 22:50:33,959 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:50:33,960 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:50:33,961 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:50:33,969 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:50:33,971 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:50:33,973 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 22:50:33,974 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:50:33,975 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:50:33,976 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:50:33,980 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:50:33,981 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:50:33,983 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:50:33,984 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:50:33,985 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:50:33,986 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:50:33,992 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:50:33,993 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:50:33,995 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:50:33,996 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:50:34,586 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 22:50:34,589 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 22:50:34,590 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:50:34,651 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:50:34,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:34,711 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:34,743 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:34,966 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 22:50:34,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432366960] [2020-07-21 22:50:34,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:50:34,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 22:50:34,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658724100] [2020-07-21 22:50:34,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 22:50:34,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:34,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 22:50:34,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 22:50:34,983 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 22:50:36,060 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 22:50:36,613 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 22:50:36,920 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 22:50:37,438 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 22:50:37,668 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 22:50:38,138 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:50:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:40,744 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 22:50:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 22:50:40,745 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 130 [2020-07-21 22:50:40,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:40,752 INFO L225 Difference]: With dead ends: 588 [2020-07-21 22:50:40,752 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 22:50:40,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 232 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 22:50:40,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 22:50:40,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 22:50:40,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 22:50:40,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 22:50:40,802 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 130 [2020-07-21 22:50:40,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:40,803 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 22:50:40,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 22:50:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 22:50:40,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 22:50:40,807 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:40,807 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:50:41,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:41,023 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:41,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:41,024 INFO L82 PathProgramCache]: Analyzing trace with hash 2082377679, now seen corresponding path program 1 times [2020-07-21 22:50:41,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:41,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056897457] [2020-07-21 22:50:41,026 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:41,138 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:50:41,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:41,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:50:41,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:41,219 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 22:50:41,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:50:41,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056897457] [2020-07-21 22:50:41,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:50:41,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:50:41,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717788339] [2020-07-21 22:50:41,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:50:41,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:41,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:50:41,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:50:41,226 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 22:50:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:41,780 INFO L93 Difference]: Finished difference Result 1044 states and 1434 transitions. [2020-07-21 22:50:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:50:41,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 22:50:41,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:41,788 INFO L225 Difference]: With dead ends: 1044 [2020-07-21 22:50:41,788 INFO L226 Difference]: Without dead ends: 693 [2020-07-21 22:50:41,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:50:41,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-07-21 22:50:41,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2020-07-21 22:50:41,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-07-21 22:50:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 869 transitions. [2020-07-21 22:50:41,829 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 869 transitions. Word has length 133 [2020-07-21 22:50:41,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:41,829 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 869 transitions. [2020-07-21 22:50:41,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:50:41,830 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 869 transitions. [2020-07-21 22:50:41,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 22:50:41,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:41,833 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:50:42,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:42,049 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:42,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:42,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1533113042, now seen corresponding path program 1 times [2020-07-21 22:50:42,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:42,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081900364] [2020-07-21 22:50:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:42,138 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:50:42,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:42,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:50:42,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:50:42,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:50:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:50:42,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081900364] [2020-07-21 22:50:42,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:50:42,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:50:42,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475155532] [2020-07-21 22:50:42,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:50:42,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:42,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:50:42,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:50:42,273 INFO L87 Difference]: Start difference. First operand 693 states and 869 transitions. Second operand 7 states. [2020-07-21 22:50:43,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:43,679 INFO L93 Difference]: Finished difference Result 2372 states and 3098 transitions. [2020-07-21 22:50:43,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:50:43,679 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-07-21 22:50:43,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:43,689 INFO L225 Difference]: With dead ends: 2372 [2020-07-21 22:50:43,690 INFO L226 Difference]: Without dead ends: 1745 [2020-07-21 22:50:43,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:50:43,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2020-07-21 22:50:43,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1545. [2020-07-21 22:50:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2020-07-21 22:50:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1983 transitions. [2020-07-21 22:50:43,772 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1983 transitions. Word has length 153 [2020-07-21 22:50:43,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:43,775 INFO L479 AbstractCegarLoop]: Abstraction has 1545 states and 1983 transitions. [2020-07-21 22:50:43,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:50:43,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1983 transitions. [2020-07-21 22:50:43,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-21 22:50:43,785 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:43,786 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:50:43,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:43,999 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:44,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:44,000 INFO L82 PathProgramCache]: Analyzing trace with hash -660182150, now seen corresponding path program 1 times [2020-07-21 22:50:44,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:44,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360423332] [2020-07-21 22:50:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:44,101 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:50:44,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:44,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:50:44,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:50:44,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:50:44,198 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:50:44,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360423332] [2020-07-21 22:50:44,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:50:44,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:50:44,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373913002] [2020-07-21 22:50:44,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:50:44,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:44,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:50:44,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:50:44,202 INFO L87 Difference]: Start difference. First operand 1545 states and 1983 transitions. Second operand 6 states. [2020-07-21 22:50:44,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:44,978 INFO L93 Difference]: Finished difference Result 3223 states and 4220 transitions. [2020-07-21 22:50:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:50:44,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-07-21 22:50:44,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:44,990 INFO L225 Difference]: With dead ends: 3223 [2020-07-21 22:50:44,990 INFO L226 Difference]: Without dead ends: 1744 [2020-07-21 22:50:44,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:50:44,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-07-21 22:50:45,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1565. [2020-07-21 22:50:45,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1565 states. [2020-07-21 22:50:45,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1928 transitions. [2020-07-21 22:50:45,050 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1928 transitions. Word has length 158 [2020-07-21 22:50:45,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:45,051 INFO L479 AbstractCegarLoop]: Abstraction has 1565 states and 1928 transitions. [2020-07-21 22:50:45,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:50:45,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1928 transitions. [2020-07-21 22:50:45,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 22:50:45,056 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:45,057 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:50:45,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:45,273 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:45,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:45,274 INFO L82 PathProgramCache]: Analyzing trace with hash -437489647, now seen corresponding path program 1 times [2020-07-21 22:50:45,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:45,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639583965] [2020-07-21 22:50:45,275 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:45,364 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:50:45,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:45,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:50:45,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 22:50:45,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:50:45,633 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 22:50:45,680 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:45,681 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:45,682 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:45,682 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:45,684 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:50:45,684 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:45,685 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-21 22:50:45,685 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:45,805 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 22:50:45,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639583965] [2020-07-21 22:50:45,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:50:45,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:50:45,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324263519] [2020-07-21 22:50:45,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:50:45,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:45,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:50:45,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:50:45,808 INFO L87 Difference]: Start difference. First operand 1565 states and 1928 transitions. Second operand 7 states. [2020-07-21 22:50:47,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:47,052 INFO L93 Difference]: Finished difference Result 3804 states and 4698 transitions. [2020-07-21 22:50:47,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:50:47,053 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2020-07-21 22:50:47,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:47,065 INFO L225 Difference]: With dead ends: 3804 [2020-07-21 22:50:47,065 INFO L226 Difference]: Without dead ends: 2027 [2020-07-21 22:50:47,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 332 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 22:50:47,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2020-07-21 22:50:47,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1690. [2020-07-21 22:50:47,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1690 states. [2020-07-21 22:50:47,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 1959 transitions. [2020-07-21 22:50:47,126 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 1959 transitions. Word has length 168 [2020-07-21 22:50:47,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:47,126 INFO L479 AbstractCegarLoop]: Abstraction has 1690 states and 1959 transitions. [2020-07-21 22:50:47,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:50:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 1959 transitions. [2020-07-21 22:50:47,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 22:50:47,135 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:47,135 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:50:47,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:47,350 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:47,351 INFO L82 PathProgramCache]: Analyzing trace with hash 567799949, now seen corresponding path program 1 times [2020-07-21 22:50:47,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:47,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097114604] [2020-07-21 22:50:47,352 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:47,461 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:50:47,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:47,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:50:47,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:47,484 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 22:50:47,485 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:50:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 22:50:47,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:50:47,749 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 22:50:47,807 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:47,808 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:47,809 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:50:47,809 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:47,810 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:50:47,811 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:47,812 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:50:47,812 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:47,813 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:47,843 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:50:47,994 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 84 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 22:50:47,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097114604] [2020-07-21 22:50:47,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:50:47,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:50:47,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589808107] [2020-07-21 22:50:47,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:50:47,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:47,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:50:47,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:50:47,998 INFO L87 Difference]: Start difference. First operand 1690 states and 1959 transitions. Second operand 7 states. [2020-07-21 22:50:49,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:49,327 INFO L93 Difference]: Finished difference Result 4744 states and 5721 transitions. [2020-07-21 22:50:49,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-21 22:50:49,328 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-21 22:50:49,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:49,342 INFO L225 Difference]: With dead ends: 4744 [2020-07-21 22:50:49,343 INFO L226 Difference]: Without dead ends: 2844 [2020-07-21 22:50:49,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 394 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:50:49,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-07-21 22:50:49,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 1837. [2020-07-21 22:50:49,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-07-21 22:50:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2052 transitions. [2020-07-21 22:50:49,413 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2052 transitions. Word has length 198 [2020-07-21 22:50:49,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:49,414 INFO L479 AbstractCegarLoop]: Abstraction has 1837 states and 2052 transitions. [2020-07-21 22:50:49,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:50:49,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2052 transitions. [2020-07-21 22:50:49,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-21 22:50:49,420 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:49,421 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:50:49,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:49,635 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:49,636 INFO L82 PathProgramCache]: Analyzing trace with hash -300451100, now seen corresponding path program 1 times [2020-07-21 22:50:49,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:49,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909574440] [2020-07-21 22:50:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:49,751 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:50:49,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:49,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 22:50:49,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:49,786 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 22:50:49,790 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:50:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-21 22:50:49,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:50:50,163 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:50:50,227 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:50,228 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:50,229 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:50:50,230 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:50,231 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 2, 2, 1] term [2020-07-21 22:50:50,231 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:50:50,232 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 22:50:50,232 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:50:50,233 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:50:50,233 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:50,234 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:50,235 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[8, 2, 1] term [2020-07-21 22:50:50,235 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:50,270 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:50:50,358 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:50,363 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:50:50,663 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 108 proven. 47 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:50:50,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909574440] [2020-07-21 22:50:50,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:50:50,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 22:50:50,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548667901] [2020-07-21 22:50:50,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:50:50,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:50,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:50:50,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:50:50,667 INFO L87 Difference]: Start difference. First operand 1837 states and 2052 transitions. Second operand 8 states. [2020-07-21 22:50:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:51,667 INFO L93 Difference]: Finished difference Result 3616 states and 4097 transitions. [2020-07-21 22:50:51,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:50:51,670 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 220 [2020-07-21 22:50:51,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:51,677 INFO L225 Difference]: With dead ends: 3616 [2020-07-21 22:50:51,677 INFO L226 Difference]: Without dead ends: 1700 [2020-07-21 22:50:51,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 435 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:50:51,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-07-21 22:50:51,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1549. [2020-07-21 22:50:51,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1549 states. [2020-07-21 22:50:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 1728 transitions. [2020-07-21 22:50:51,724 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 1728 transitions. Word has length 220 [2020-07-21 22:50:51,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:51,725 INFO L479 AbstractCegarLoop]: Abstraction has 1549 states and 1728 transitions. [2020-07-21 22:50:51,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:50:51,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 1728 transitions. [2020-07-21 22:50:51,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-21 22:50:51,731 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:51,731 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:50:51,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:51,945 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:51,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:51,945 INFO L82 PathProgramCache]: Analyzing trace with hash -244851374, now seen corresponding path program 1 times [2020-07-21 22:50:51,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:51,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744885132] [2020-07-21 22:50:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:52,103 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:50:52,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:52,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:50:52,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 22:50:52,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:50:52,424 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:50:52,474 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:52,474 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:52,475 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:52,476 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:52,476 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:50:52,477 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:52,477 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[6, 2, 1] term [2020-07-21 22:50:52,478 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:50:52,478 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:50:52,478 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:50:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 176 proven. 15 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-07-21 22:50:52,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744885132] [2020-07-21 22:50:52,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:50:52,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:50:52,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97205647] [2020-07-21 22:50:52,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:50:52,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:52,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:50:52,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:50:52,648 INFO L87 Difference]: Start difference. First operand 1549 states and 1728 transitions. Second operand 7 states. [2020-07-21 22:50:53,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:53,913 INFO L93 Difference]: Finished difference Result 3733 states and 4243 transitions. [2020-07-21 22:50:53,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:50:53,914 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2020-07-21 22:50:53,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:53,923 INFO L225 Difference]: With dead ends: 3733 [2020-07-21 22:50:53,923 INFO L226 Difference]: Without dead ends: 2250 [2020-07-21 22:50:53,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 540 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:50:53,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2020-07-21 22:50:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2244. [2020-07-21 22:50:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2020-07-21 22:50:53,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 2521 transitions. [2020-07-21 22:50:53,977 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 2521 transitions. Word has length 271 [2020-07-21 22:50:53,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:53,977 INFO L479 AbstractCegarLoop]: Abstraction has 2244 states and 2521 transitions. [2020-07-21 22:50:53,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:50:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 2521 transitions. [2020-07-21 22:50:53,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-07-21 22:50:53,985 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:50:53,986 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:50:54,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:54,200 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:50:54,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:50:54,201 INFO L82 PathProgramCache]: Analyzing trace with hash -914630707, now seen corresponding path program 1 times [2020-07-21 22:50:54,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:50:54,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74758020] [2020-07-21 22:50:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:54,380 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:50:54,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:50:54,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:50:54,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:50:54,449 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 22:50:54,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:50:54,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74758020] [2020-07-21 22:50:54,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:50:54,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:50:54,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826443511] [2020-07-21 22:50:54,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:50:54,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:50:54,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:50:54,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:50:54,452 INFO L87 Difference]: Start difference. First operand 2244 states and 2521 transitions. Second operand 3 states. [2020-07-21 22:50:54,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:50:54,970 INFO L93 Difference]: Finished difference Result 4420 states and 4971 transitions. [2020-07-21 22:50:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:50:54,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 284 [2020-07-21 22:50:54,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:50:54,972 INFO L225 Difference]: With dead ends: 4420 [2020-07-21 22:50:54,972 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:50:54,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:50:54,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:50:54,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:50:54,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:50:54,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:50:54,982 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 284 [2020-07-21 22:50:54,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:50:54,982 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:50:54,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:50:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:50:54,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:50:55,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:50:55,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:50:55,769 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 177 [2020-07-21 22:50:55,986 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 165 [2020-07-21 22:50:57,424 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 213 DAG size of output: 106 [2020-07-21 22:50:58,427 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 66 [2020-07-21 22:50:59,373 WARN L193 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 66 [2020-07-21 22:50:59,378 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:50:59,378 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) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 22:50:59,378 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:50:59,378 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 22:50:59,378 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 22:50:59,378 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,378 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,378 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 22:50:59,379 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 22:50:59,380 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 22:50:59,381 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 22:50:59,381 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 22:50:59,381 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 22:50:59,381 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 22:50:59,381 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 22:50:59,381 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 22:50:59,381 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 22:50:59,381 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 22:50:59,382 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2020-07-21 22:50:59,382 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 22:50:59,382 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 22:50:59,382 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 22:50:59,382 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 22:50:59,382 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,382 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,382 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,382 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,383 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,383 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 22:50:59,383 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 22:50:59,383 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 22:50:59,383 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 22:50:59,383 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 22:50:59,383 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 22:50:59,383 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 22:50:59,384 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 22:50:59,384 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 22:50:59,384 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,384 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,384 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,384 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,384 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,384 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 22:50:59,384 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 22:50:59,385 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 22:50:59,385 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 22:50:59,385 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 22:50:59,385 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 22:50:59,385 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 22:50:59,385 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 22:50:59,385 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 22:50:59,385 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 22:50:59,386 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 22:50:59,386 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 22:50:59,386 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 22:50:59,386 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,386 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,386 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,386 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,386 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,386 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 22:50:59,387 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 22:50:59,387 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 22:50:59,387 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 22:50:59,387 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 22:50:59,387 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 22:50:59,387 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 22:50:59,387 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 22:50:59,387 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 22:50:59,387 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,388 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,388 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,388 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,388 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,388 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,388 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 22:50:59,388 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,388 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 22:50:59,389 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 22:50:59,390 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 22:50:59,391 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 22:50:59,392 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 22:50:59,392 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 22:50:59,392 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 |old(~a16~0)|)) (.cse14 (= ~a7~0 |old(~a7~0)|)) (.cse16 (<= ~a8~0 13)) (.cse3 (= ~a17~0 |old(~a17~0)|)) (.cse4 (<= |old(~a16~0)| ~a16~0)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|))) (let ((.cse2 (= 1 ~a7~0)) (.cse10 (and .cse1 .cse14 .cse16 .cse3 .cse4 .cse5 .cse6)) (.cse11 (not (<= |old(~a8~0)| 13))) (.cse17 (not (= 15 |old(~a8~0)|))) (.cse7 (not (<= |old(~a16~0)| 5))) (.cse13 (not (= 1 |old(~a17~0)|))) (.cse18 (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|)))) (.cse19 (= 15 ~a8~0)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse21 (not (< 4 |old(~a16~0)|))) (.cse20 (and (not (= 1 |old(~a20~0)|)) (not (< 6 |old(~a16~0)|)))) (.cse12 (not (<= |old(~a7~0)| 0))) (.cse8 (not (= 1 |old(~a21~0)|))) (.cse9 (not (<= |old(~a17~0)| 0))) (.cse15 (not (= 8 ~a12~0)))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) .cse7 .cse8 .cse9) (or .cse10 .cse11 (not (<= |old(~a16~0)| 4))) (or .cse12 .cse13 .cse8 (and .cse1 .cse14 .cse4 (= 1 ~a17~0) .cse5 .cse6) .cse15) (or .cse12 .cse7 .cse11 (and .cse1 .cse14 .cse16 .cse4 .cse5 .cse6) .cse8 .cse15) (or .cse0 (and .cse1 .cse2 (<= 5 ~a16~0) .cse6) (not (<= 5 |old(~a16~0)|)) .cse8) (or (not (= 5 |old(~a16~0)|)) .cse17 .cse12 (not (<= |old(~a20~0)| 0)) .cse13 .cse18 .cse8 .cse19 .cse15) (or .cse10 .cse11 .cse20) (or .cse17 .cse12 .cse7 .cse21 .cse13 .cse18 .cse8 .cse19 .cse15 .cse20) (or (and .cse4 .cse5) .cse0 .cse21 .cse8 .cse20) (or (and .cse1 .cse14 .cse3 .cse4 .cse5 .cse6) .cse12 .cse8 .cse9 .cse15)))) [2020-07-21 22:50:59,392 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 22:50:59,392 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,392 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,392 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,392 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,392 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 22:50:59,393 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 22:50:59,394 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,395 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 22:50:59,395 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 22:50:59,395 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 22:50:59,395 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 22:50:59,395 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 22:50:59,395 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 22:50:59,395 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 22:50:59,395 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 22:50:59,396 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 22:50:59,396 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 22:50:59,396 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 22:50:59,396 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 22:50:59,396 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 22:50:59,396 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 22:50:59,396 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,396 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,396 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,397 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,397 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,397 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:50:59,397 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 22:50:59,397 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 22:50:59,397 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 22:50:59,397 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 22:50:59,397 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 22:50:59,397 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 22:50:59,398 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 22:50:59,398 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 22:50:59,398 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 22:50:59,398 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 22:50:59,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:50:59,398 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 22:50:59,398 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:50:59,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:50:59,399 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)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 15 ~a8~0) (= 5 ~a16~0)) (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))) [2020-07-21 22:50:59,399 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:50:59,399 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (or (< 6 ~a16~0) (= 1 ~a20~0))) (.cse7 (<= ~a17~0 0)) (.cse6 (not (= 1 |old(~a7~0)|))) (.cse5 (<= ~a7~0 0)) (.cse2 (< 4 |old(~a16~0)|)) (.cse1 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 4)) (.cse3 (= 1 ~a7~0)) (.cse4 (= 1 ~a21~0)) (.cse8 (= 8 ~a12~0))) (or (and .cse0 .cse1) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not .cse2) (and .cse0 .cse3 .cse4 (< 4 ~a16~0)) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse5 (<= ~a16~0 5) .cse4) (and .cse6 .cse7 .cse5 .cse2 .cse4 .cse8) (and .cse3 .cse7 .cse4 .cse9) (and .cse6 .cse5 (= 1 ~a17~0) .cse2 .cse4 .cse8) (and .cse1 .cse9) (not (= 1 |old(~a20~0)|)) (and (<= ~a16~0 |old(~a16~0)|) .cse3 (<= 5 ~a16~0) .cse4) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (not .cse8))) [2020-07-21 22:50:59,399 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 22:50:59,399 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 22:50:59,399 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (or (< 6 ~a16~0) (= 1 ~a20~0))) (.cse7 (<= ~a17~0 0)) (.cse6 (not (= 1 |old(~a7~0)|))) (.cse5 (<= ~a7~0 0)) (.cse2 (< 4 |old(~a16~0)|)) (.cse1 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 4)) (.cse3 (= 1 ~a7~0)) (.cse4 (= 1 ~a21~0)) (.cse8 (= 8 ~a12~0))) (or (and .cse0 .cse1) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not .cse2) (and .cse0 .cse3 .cse4 (< 4 ~a16~0)) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse5 (<= ~a16~0 5) .cse4) (and .cse6 .cse7 .cse5 .cse2 .cse4 .cse8) (and .cse3 .cse7 .cse4 .cse9) (and .cse6 .cse5 (= 1 ~a17~0) .cse2 .cse4 .cse8) (and .cse1 .cse9) (not (= 1 |old(~a20~0)|)) (and (<= ~a16~0 |old(~a16~0)|) .cse3 (<= 5 ~a16~0) .cse4) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (not .cse8))) [2020-07-21 22:50:59,400 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:50:59,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:50:59 BoogieIcfgContainer [2020-07-21 22:50:59,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:50:59,423 INFO L168 Benchmark]: Toolchain (without parser) took 33098.41 ms. Allocated memory was 138.9 MB in the beginning and 585.1 MB in the end (delta: 446.2 MB). Free memory was 102.1 MB in the beginning and 399.7 MB in the end (delta: -297.7 MB). Peak memory consumption was 433.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:50:59,424 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 22:50:59,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.13 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 101.6 MB in the beginning and 172.1 MB in the end (delta: -70.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:50:59,425 INFO L168 Benchmark]: Boogie Preprocessor took 150.83 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:50:59,426 INFO L168 Benchmark]: RCFGBuilder took 1321.91 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 167.1 MB in the beginning and 181.7 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:50:59,427 INFO L168 Benchmark]: TraceAbstraction took 30887.87 ms. Allocated memory was 239.6 MB in the beginning and 585.1 MB in the end (delta: 345.5 MB). Free memory was 180.2 MB in the beginning and 399.7 MB in the end (delta: -219.5 MB). Peak memory consumption was 411.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:50:59,430 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.13 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 101.6 MB in the beginning and 172.1 MB in the end (delta: -70.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.83 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1321.91 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 167.1 MB in the beginning and 181.7 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30887.87 ms. Allocated memory was 239.6 MB in the beginning and 585.1 MB in the end (delta: 345.5 MB). Free memory was 180.2 MB in the beginning and 399.7 MB in the end (delta: -219.5 MB). Peak memory consumption was 411.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: 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: ((((((((((((((((6 < a16 || 1 == a20) && a8 <= 13) || !(15 == \old(a8))) || !(\old(a7) <= 0)) || !(4 < \old(a16))) || ((((6 < a16 || 1 == a20) && 1 == a7) && 1 == a21) && 4 < a16)) || !(1 == \old(a17))) || (((a8 <= 13 && a7 <= 0) && a16 <= 5) && 1 == a21)) || (((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && 4 < \old(a16)) && 1 == a21) && 8 == a12)) || (((1 == a7 && a17 <= 0) && 1 == a21) && a16 <= 4)) || (((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 4 < \old(a16)) && 1 == a21) && 8 == a12)) || (a8 <= 13 && a16 <= 4)) || !(1 == \old(a20))) || (((a16 <= \old(a16) && 1 == a7) && 5 <= a16) && 1 == a21)) || !(\old(a16) <= 5)) || !(1 == \old(a21))) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.5s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 15.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 624 SDtfs, 4644 SDslu, 519 SDs, 0 SdLazy, 10863 SolverSat, 1345 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3193 GetRequests, 3071 SyntacticMatches, 9 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2244occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 1914 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 122 PreInvPairs, 170 NumberOfFragments, 782 HoareAnnotationTreeSize, 122 FomulaSimplifications, 16466 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12360 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 1837 NumberOfCodeBlocks, 1076 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 3118 ConstructedInterpolants, 0 QuantifiedInterpolants, 3214016 SizeOfPredicates, 64 NumberOfNonLiveVariables, 3927 ConjunctsInSsa, 187 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1649/1765 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...