/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:55:13,218 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:55:13,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:55:13,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:55:13,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:55:13,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:55:13,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:55:13,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:55:13,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:55:13,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:55:13,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:55:13,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:55:13,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:55:13,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:55:13,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:55:13,268 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 22:55:13,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:55:13,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:55:13,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:55:13,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:55:13,285 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:55:13,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:55:13,285 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:55:13,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:55:13,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:55:13,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:55:13,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:55:13,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:55:13,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:55:13,287 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:55:13,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:55:13,287 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:55:13,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:55:13,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:55:13,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:55:13,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:55:13,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:55:13,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:55:13,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:55:13,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:55:13,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:55:13,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:55:13,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:13,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:55:13,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:55:13,290 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 22:55:13,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:55:13,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:55:13,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:55:13,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:55:13,589 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:55:13,590 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label17.c [2020-07-21 22:55:13,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c598175f3/f1ee558e532c4d9096e9765c7142693e/FLAGe1e5ef64a [2020-07-21 22:55:14,236 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:55:14,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label17.c [2020-07-21 22:55:14,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c598175f3/f1ee558e532c4d9096e9765c7142693e/FLAGe1e5ef64a [2020-07-21 22:55:14,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c598175f3/f1ee558e532c4d9096e9765c7142693e [2020-07-21 22:55:14,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:55:14,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:55:14,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:55:14,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:55:14,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:55:14,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:14" (1/1) ... [2020-07-21 22:55:14,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@289dbef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:14, skipping insertion in model container [2020-07-21 22:55:14,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:14" (1/1) ... [2020-07-21 22:55:14,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:55:14,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:55:15,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:55:15,018 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:55:15,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:55:15,248 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:55:15,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15 WrapperNode [2020-07-21 22:55:15,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:55:15,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:55:15,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:55:15,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:55:15,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15" (1/1) ... [2020-07-21 22:55:15,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15" (1/1) ... [2020-07-21 22:55:15,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15" (1/1) ... [2020-07-21 22:55:15,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15" (1/1) ... [2020-07-21 22:55:15,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15" (1/1) ... [2020-07-21 22:55:15,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15" (1/1) ... [2020-07-21 22:55:15,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15" (1/1) ... [2020-07-21 22:55:15,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:55:15,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:55:15,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:55:15,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:55:15,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15" (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 22:55:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:55:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:55:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:55:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:55:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:55:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:55:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:55:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:55:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:55:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:55:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:55:16,734 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:55:16,734 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:55:16,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:16 BoogieIcfgContainer [2020-07-21 22:55:16,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:55:16,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:55:16,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:55:16,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:55:16,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:55:14" (1/3) ... [2020-07-21 22:55:16,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed764e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:16, skipping insertion in model container [2020-07-21 22:55:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:15" (2/3) ... [2020-07-21 22:55:16,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed764e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:16, skipping insertion in model container [2020-07-21 22:55:16,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:16" (3/3) ... [2020-07-21 22:55:16,755 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label17.c [2020-07-21 22:55:16,766 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:55:16,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:55:16,792 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:55:16,827 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:55:16,828 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:55:16,828 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:55:16,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:55:16,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:55:16,829 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:55:16,829 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:55:16,829 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:55:16,848 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:55:16,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 22:55:16,862 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:16,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:16,864 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:16,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:16,870 INFO L82 PathProgramCache]: Analyzing trace with hash -130625471, now seen corresponding path program 1 times [2020-07-21 22:55:16,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:16,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001743857] [2020-07-21 22:55:16,880 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 22:55:17,074 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:17,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:17,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:55:17,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:17,610 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:55:17,615 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:55:17,616 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:55:17,737 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 22:55:17,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:17,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001743857] [2020-07-21 22:55:17,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:17,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:55:17,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066284901] [2020-07-21 22:55:17,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:55:17,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:17,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:55:17,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:55:17,764 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:55:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:18,950 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:55:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:55:18,952 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 125 [2020-07-21 22:55:18,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:18,975 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:55:18,976 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:55:18,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:55:19,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:55:19,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:55:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:55:19,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:55:19,093 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 125 [2020-07-21 22:55:19,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:19,094 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:55:19,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:55:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:55:19,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 22:55:19,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:19,098 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:19,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:19,314 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:19,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:19,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1439670512, now seen corresponding path program 1 times [2020-07-21 22:55:19,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:19,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033496661] [2020-07-21 22:55:19,317 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 22:55:19,417 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:55:19,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:19,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:55:19,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:19,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:20,314 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:55:20,316 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:55:20,317 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:55:20,319 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:55:20,320 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:55:20,343 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:55:20,344 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:55:20,405 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:20,470 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:20,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033496661] [2020-07-21 22:55:20,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:20,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:55:20,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649667990] [2020-07-21 22:55:20,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:55:20,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:20,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:55:20,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:55:20,566 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:55:21,675 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:55:22,828 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:55:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:24,421 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 22:55:24,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:55:24,425 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 134 [2020-07-21 22:55:24,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:24,435 INFO L225 Difference]: With dead ends: 738 [2020-07-21 22:55:24,435 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 22:55:24,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 245 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 22:55:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 22:55:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 22:55:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:55:24,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 22:55:24,488 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 134 [2020-07-21 22:55:24,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:24,488 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 22:55:24,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:55:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 22:55:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 22:55:24,493 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:24,495 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:24,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:24,726 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:24,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:24,727 INFO L82 PathProgramCache]: Analyzing trace with hash -32295107, now seen corresponding path program 1 times [2020-07-21 22:55:24,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:24,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720483844] [2020-07-21 22:55:24,729 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 22:55:24,852 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:55:24,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:24,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:55:24,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:24,894 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:55:24,895 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:55:24,918 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:55:24,937 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:24,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:25,019 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:55:25,021 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:25,045 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:55:25,108 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:25,114 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:25,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720483844] [2020-07-21 22:55:25,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:25,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:25,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722360465] [2020-07-21 22:55:25,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:25,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:25,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:25,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:25,139 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 22:55:26,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:26,875 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 22:55:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 22:55:26,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-07-21 22:55:26,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:26,889 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 22:55:26,890 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 22:55:26,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 291 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 22:55:26,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 22:55:26,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 22:55:26,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 22:55:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1273 transitions. [2020-07-21 22:55:26,984 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1273 transitions. Word has length 146 [2020-07-21 22:55:26,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:26,985 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1273 transitions. [2020-07-21 22:55:26,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:26,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1273 transitions. [2020-07-21 22:55:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-21 22:55:26,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:26,996 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:27,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:27,212 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:27,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:27,213 INFO L82 PathProgramCache]: Analyzing trace with hash -189213152, now seen corresponding path program 1 times [2020-07-21 22:55:27,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:27,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637986858] [2020-07-21 22:55:27,214 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 22:55:27,338 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:55:27,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:27,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:27,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:55:27,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:27,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637986858] [2020-07-21 22:55:27,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:27,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:55:27,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527346389] [2020-07-21 22:55:27,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:55:27,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:27,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:55:27,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:55:27,375 INFO L87 Difference]: Start difference. First operand 1015 states and 1273 transitions. Second operand 3 states. [2020-07-21 22:55:28,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:28,001 INFO L93 Difference]: Finished difference Result 2320 states and 2946 transitions. [2020-07-21 22:55:28,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:55:28,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-07-21 22:55:28,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:28,018 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 22:55:28,019 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 22:55:28,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 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 22:55:28,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 22:55:28,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 22:55:28,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 22:55:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1611 transitions. [2020-07-21 22:55:28,081 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1611 transitions. Word has length 160 [2020-07-21 22:55:28,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:28,082 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1611 transitions. [2020-07-21 22:55:28,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:55:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1611 transitions. [2020-07-21 22:55:28,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-07-21 22:55:28,089 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:28,090 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:28,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:28,304 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:28,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:28,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1389093037, now seen corresponding path program 1 times [2020-07-21 22:55:28,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:28,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541057590] [2020-07-21 22:55:28,305 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 22:55:28,417 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:28,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:28,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:28,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 22:55:28,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:28,542 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 22:55:28,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541057590] [2020-07-21 22:55:28,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:28,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:28,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340253403] [2020-07-21 22:55:28,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:28,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:28,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:28,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:28,547 INFO L87 Difference]: Start difference. First operand 1307 states and 1611 transitions. Second operand 7 states. [2020-07-21 22:55:29,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:29,945 INFO L93 Difference]: Finished difference Result 3235 states and 4175 transitions. [2020-07-21 22:55:29,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:55:29,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 180 [2020-07-21 22:55:29,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:29,959 INFO L225 Difference]: With dead ends: 3235 [2020-07-21 22:55:29,959 INFO L226 Difference]: Without dead ends: 1934 [2020-07-21 22:55:29,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:55:29,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2020-07-21 22:55:30,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1915. [2020-07-21 22:55:30,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2020-07-21 22:55:30,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2461 transitions. [2020-07-21 22:55:30,031 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2461 transitions. Word has length 180 [2020-07-21 22:55:30,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:30,032 INFO L479 AbstractCegarLoop]: Abstraction has 1915 states and 2461 transitions. [2020-07-21 22:55:30,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:30,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2461 transitions. [2020-07-21 22:55:30,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-21 22:55:30,049 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:30,049 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:30,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:30,267 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:30,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:30,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1968198224, now seen corresponding path program 1 times [2020-07-21 22:55:30,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:30,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27998001] [2020-07-21 22:55:30,269 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 22:55:30,367 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:30,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:30,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:30,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 22:55:30,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 75 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 22:55:30,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27998001] [2020-07-21 22:55:30,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:30,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:55:30,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652591149] [2020-07-21 22:55:30,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:55:30,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:30,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:55:30,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:55:30,488 INFO L87 Difference]: Start difference. First operand 1915 states and 2461 transitions. Second operand 6 states. [2020-07-21 22:55:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:31,422 INFO L93 Difference]: Finished difference Result 4166 states and 5456 transitions. [2020-07-21 22:55:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:55:31,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-07-21 22:55:31,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:31,441 INFO L225 Difference]: With dead ends: 4166 [2020-07-21 22:55:31,441 INFO L226 Difference]: Without dead ends: 2257 [2020-07-21 22:55:31,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 362 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:55:31,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2020-07-21 22:55:31,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2232. [2020-07-21 22:55:31,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2232 states. [2020-07-21 22:55:31,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 2816 transitions. [2020-07-21 22:55:31,548 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 2816 transitions. Word has length 183 [2020-07-21 22:55:31,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:31,549 INFO L479 AbstractCegarLoop]: Abstraction has 2232 states and 2816 transitions. [2020-07-21 22:55:31,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:55:31,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 2816 transitions. [2020-07-21 22:55:31,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-21 22:55:31,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:31,561 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:31,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:31,774 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:31,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:31,775 INFO L82 PathProgramCache]: Analyzing trace with hash 924331818, now seen corresponding path program 1 times [2020-07-21 22:55:31,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:31,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856075514] [2020-07-21 22:55:31,776 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 22:55:31,921 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:31,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:31,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:55:31,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 22:55:31,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 80 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-21 22:55:32,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856075514] [2020-07-21 22:55:32,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:32,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:32,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817914393] [2020-07-21 22:55:32,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:32,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:32,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:32,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:32,052 INFO L87 Difference]: Start difference. First operand 2232 states and 2816 transitions. Second operand 7 states. [2020-07-21 22:55:32,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:32,553 INFO L93 Difference]: Finished difference Result 4156 states and 5419 transitions. [2020-07-21 22:55:32,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 22:55:32,554 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-07-21 22:55:32,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:32,566 INFO L225 Difference]: With dead ends: 4156 [2020-07-21 22:55:32,567 INFO L226 Difference]: Without dead ends: 1930 [2020-07-21 22:55:32,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:55:32,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2020-07-21 22:55:32,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1906. [2020-07-21 22:55:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1906 states. [2020-07-21 22:55:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2367 transitions. [2020-07-21 22:55:32,674 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2367 transitions. Word has length 190 [2020-07-21 22:55:32,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:32,674 INFO L479 AbstractCegarLoop]: Abstraction has 1906 states and 2367 transitions. [2020-07-21 22:55:32,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2367 transitions. [2020-07-21 22:55:32,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-21 22:55:32,682 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:32,683 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:32,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:32,897 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:32,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:32,898 INFO L82 PathProgramCache]: Analyzing trace with hash 753866649, now seen corresponding path program 1 times [2020-07-21 22:55:32,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:32,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270676414] [2020-07-21 22:55:32,899 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 22:55:32,989 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:32,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:32,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:55:32,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 22:55:33,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:33,096 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 74 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 22:55:33,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270676414] [2020-07-21 22:55:33,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:33,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:55:33,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44075104] [2020-07-21 22:55:33,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:55:33,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:33,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:55:33,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:55:33,099 INFO L87 Difference]: Start difference. First operand 1906 states and 2367 transitions. Second operand 7 states. [2020-07-21 22:55:33,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:33,849 INFO L93 Difference]: Finished difference Result 4957 states and 6454 transitions. [2020-07-21 22:55:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:55:33,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-07-21 22:55:33,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:33,850 INFO L225 Difference]: With dead ends: 4957 [2020-07-21 22:55:33,850 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:55:33,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:55:33,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:55:33,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:55:33,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:55:33,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:55:33,863 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2020-07-21 22:55:33,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:33,863 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:55:33,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:55:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:55:33,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:55:34,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:34,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:55:34,433 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 86 [2020-07-21 22:55:34,543 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 97 [2020-07-21 22:55:35,228 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 71 [2020-07-21 22:55:35,523 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 34 [2020-07-21 22:55:35,819 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 34 [2020-07-21 22:55:35,822 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:55:35,823 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) (not (= 1 ~a21~0))) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 22:55:35,823 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:55:35,823 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,823 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,823 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,823 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:55:35,824 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:55:35,825 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:55:35,826 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:55:35,826 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:55:35,826 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:55:35,826 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:55:35,826 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:55:35,826 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:55:35,826 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:55:35,826 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:55:35,826 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:55:35,827 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:55:35,827 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,827 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,827 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,827 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,827 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,827 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 529) no Hoare annotation was computed. [2020-07-21 22:55:35,827 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:55:35,827 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:55:35,828 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:55:35,828 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:55:35,828 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:55:35,828 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:55:35,828 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:55:35,828 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:55:35,828 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:55:35,828 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:55:35,829 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,830 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:55:35,831 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,832 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:55:35,833 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,834 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,835 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:55:35,836 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:55:35,837 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:55:35,837 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:55:35,837 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:55:35,837 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,837 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,837 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,837 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse7 (not (<= |old(~a28~0)| 10))) (.cse10 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0)) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse3 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse2 (= 8 ~a17~0)) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse6 (<= ~a11~0 |old(~a11~0)|)) (.cse9 (not (= 1 |old(~a25~0)|))) (.cse8 (not (<= |old(~a17~0)| 8))) (.cse4 (not (= 1 ~a21~0))) (.cse5 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (and (= 7 ~a28~0) .cse2) .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse8 .cse4 .cse5) (or .cse0 .cse9 .cse8 (and .cse10 .cse11 .cse12 (= 1 ~a25~0))) (or .cse7 (and .cse10 (<= ~a28~0 10) .cse11 .cse12 (= ~a25~0 |old(~a25~0)|)) .cse8) (or .cse0 (not (= 10 |old(~a28~0)|)) .cse1 .cse3 .cse4 .cse2 .cse5) (or .cse0 .cse6 .cse9 .cse8 .cse4 .cse5))) [2020-07-21 22:55:35,837 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,837 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,837 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:55:35,838 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:55:35,839 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,840 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:55:35,841 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:55:35,842 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:55:35,842 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:55:35,842 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:55:35,842 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:55:35,842 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:55:35,842 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:55:35,842 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:55:35,842 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:55:35,843 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:55:35,843 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:55:35,843 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 22:55:35,843 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:55:35,843 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:55:35,843 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:55:35,844 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 10)) (not (= 8 |old(~a17~0)|)) (and (= 1 ~a19~0) .cse0 (= 1 ~a25~0)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 22:55:35,844 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:55:35,844 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:55:35,844 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 10)) (not (= 8 |old(~a17~0)|)) (and (= 1 ~a19~0) .cse0 (= 1 ~a25~0)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 22:55:35,844 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:55:35,844 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:55:35,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:55:35 BoogieIcfgContainer [2020-07-21 22:55:35,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:55:35,866 INFO L168 Benchmark]: Toolchain (without parser) took 21339.46 ms. Allocated memory was 143.7 MB in the beginning and 496.5 MB in the end (delta: 352.8 MB). Free memory was 100.2 MB in the beginning and 238.2 MB in the end (delta: -138.0 MB). Peak memory consumption was 336.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:35,867 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 22:55:35,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.26 ms. Allocated memory was 143.7 MB in the beginning and 203.4 MB in the end (delta: 59.8 MB). Free memory was 99.8 MB in the beginning and 170.5 MB in the end (delta: -70.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:35,868 INFO L168 Benchmark]: Boogie Preprocessor took 105.38 ms. Allocated memory is still 203.4 MB. Free memory was 170.5 MB in the beginning and 165.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:35,869 INFO L168 Benchmark]: RCFGBuilder took 1388.29 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 165.3 MB in the beginning and 181.1 MB in the end (delta: -15.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:35,870 INFO L168 Benchmark]: TraceAbstraction took 19117.15 ms. Allocated memory was 233.8 MB in the beginning and 496.5 MB in the end (delta: 262.7 MB). Free memory was 181.1 MB in the beginning and 238.2 MB in the end (delta: -57.2 MB). Peak memory consumption was 327.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:35,877 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.26 ms. Allocated memory was 143.7 MB in the beginning and 203.4 MB in the end (delta: 59.8 MB). Free memory was 99.8 MB in the beginning and 170.5 MB in the end (delta: -70.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.38 ms. Allocated memory is still 203.4 MB. Free memory was 170.5 MB in the beginning and 165.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1388.29 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 165.3 MB in the beginning and 181.1 MB in the end (delta: -15.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19117.15 ms. Allocated memory was 233.8 MB in the beginning and 496.5 MB in the end (delta: 262.7 MB). Free memory was 181.1 MB in the beginning and 238.2 MB in the end (delta: -57.2 MB). Peak memory consumption was 327.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 529]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((!(1 == \old(a19)) || (a17 <= 8 && a28 <= 10)) || !(8 == \old(a17))) || ((1 == a19 && a17 <= 8) && 1 == a25)) || !(7 == \old(a28))) || !(\old(a25) <= 0)) || !(1 == a21)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.2s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 713 SDtfs, 4773 SDslu, 706 SDs, 0 SdLazy, 7679 SolverSat, 1256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2381 GetRequests, 2277 SyntacticMatches, 8 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2232occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 134 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 98 PreInvPairs, 160 NumberOfFragments, 363 HoareAnnotationTreeSize, 98 FomulaSimplifications, 4389 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4222 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1307 NumberOfCodeBlocks, 737 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2315 ConstructedInterpolants, 0 QuantifiedInterpolants, 1480579 SizeOfPredicates, 36 NumberOfNonLiveVariables, 2824 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 843/896 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...