/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_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:26:16,292 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:26:16,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:26:16,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:26:16,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:26:16,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:26:16,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:26:16,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:26:16,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:26:16,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:26:16,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:26:16,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:26:16,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:26:16,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:26:16,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:26:16,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:26:16,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:26:16,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:26:16,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:26:16,359 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:26:16,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:26:16,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:26:16,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:26:16,361 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:26:16,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:26:16,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:26:16,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:26:16,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:26:16,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:26:16,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:26:16,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:26:16,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:26:16,363 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:26:16,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:26:16,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:26:16,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:26:16,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:26:16,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:26:16,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:26:16,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:26:16,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:26:16,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:26:16,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:26:16,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:26:16,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:26:16,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:16,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:26:16,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:26:16,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:26:16,648 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:26:16,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:26:16,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:26:16,669 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:26:16,670 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:26:16,671 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label54.c [2020-07-21 01:26:16,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04fa1471f/73d0b9d909694efab637358666f90e64/FLAG64c7b8fbe [2020-07-21 01:26:17,379 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:26:17,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label54.c [2020-07-21 01:26:17,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04fa1471f/73d0b9d909694efab637358666f90e64/FLAG64c7b8fbe [2020-07-21 01:26:17,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04fa1471f/73d0b9d909694efab637358666f90e64 [2020-07-21 01:26:17,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:26:17,593 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:26:17,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:26:17,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:26:17,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:26:17,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:17" (1/1) ... [2020-07-21 01:26:17,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487a7de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:17, skipping insertion in model container [2020-07-21 01:26:17,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:17" (1/1) ... [2020-07-21 01:26:17,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:26:17,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:26:18,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:26:18,127 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:26:18,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:26:18,355 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:26:18,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18 WrapperNode [2020-07-21 01:26:18,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:26:18,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:26:18,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:26:18,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:26:18,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18" (1/1) ... [2020-07-21 01:26:18,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18" (1/1) ... [2020-07-21 01:26:18,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18" (1/1) ... [2020-07-21 01:26:18,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18" (1/1) ... [2020-07-21 01:26:18,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18" (1/1) ... [2020-07-21 01:26:18,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18" (1/1) ... [2020-07-21 01:26:18,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18" (1/1) ... [2020-07-21 01:26:18,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:26:18,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:26:18,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:26:18,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:26:18,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:26:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:26:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:26:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:26:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:26:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:26:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:26:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:26:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:26:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:26:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:26:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:26:19,793 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:26:19,794 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:26:19,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:19 BoogieIcfgContainer [2020-07-21 01:26:19,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:26:19,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:26:19,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:26:19,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:26:19,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:26:17" (1/3) ... [2020-07-21 01:26:19,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca1336a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:19, skipping insertion in model container [2020-07-21 01:26:19,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:18" (2/3) ... [2020-07-21 01:26:19,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca1336a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:19, skipping insertion in model container [2020-07-21 01:26:19,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:19" (3/3) ... [2020-07-21 01:26:19,816 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label54.c [2020-07-21 01:26:19,829 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:26:19,842 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:26:19,857 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:26:19,898 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:26:19,899 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:26:19,900 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:26:19,900 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:26:19,900 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:26:19,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:26:19,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:26:19,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:26:19,931 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:26:19,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-21 01:26:19,955 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:19,958 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] [2020-07-21 01:26:19,958 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:19,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:19,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1789175463, now seen corresponding path program 1 times [2020-07-21 01:26:19,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:19,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375635176] [2020-07-21 01:26:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:20,157 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:26:20,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:20,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:26:20,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:20,739 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:26:20,748 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:26:20,749 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:26:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:26:20,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:20,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375635176] [2020-07-21 01:26:20,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:20,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:26:20,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047659682] [2020-07-21 01:26:20,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:26:20,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:20,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:26:20,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:26:20,896 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:26:22,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:22,086 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:26:22,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:26:22,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 107 [2020-07-21 01:26:22,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:22,111 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:26:22,112 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:26:22,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 98 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 01:26:22,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:26:22,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:26:22,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:26:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:26:22,203 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 107 [2020-07-21 01:26:22,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:22,204 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:26:22,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:26:22,204 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:26:22,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 01:26:22,208 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:22,208 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] [2020-07-21 01:26:22,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:22,411 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:22,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:22,412 INFO L82 PathProgramCache]: Analyzing trace with hash -151828536, now seen corresponding path program 1 times [2020-07-21 01:26:22,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:22,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799000192] [2020-07-21 01:26:22,414 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:22,508 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:26:22,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:22,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:26:22,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:23,025 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 01:26:23,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:23,433 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:26:23,435 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:26:23,436 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:26:23,438 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:26:23,439 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:26:23,462 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:26:23,463 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:26:23,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:23,587 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:23,736 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 01:26:23,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799000192] [2020-07-21 01:26:23,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:23,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:26:23,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240528465] [2020-07-21 01:26:23,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:26:23,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:23,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:26:23,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:26:23,741 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:26:24,891 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:26:26,081 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:26:26,329 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-07-21 01:26:27,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:27,908 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:26:27,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:26:27,913 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 116 [2020-07-21 01:26:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:27,918 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:26:27,919 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:26:27,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 209 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:26:27,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:26:27,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:26:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:26:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:26:27,978 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 116 [2020-07-21 01:26:27,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:27,979 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:26:27,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:26:27,979 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:26:27,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 01:26:27,984 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:27,986 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] [2020-07-21 01:26:28,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:28,188 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:28,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:28,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1558132907, now seen corresponding path program 1 times [2020-07-21 01:26:28,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:28,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370288343] [2020-07-21 01:26:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:28,289 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:26:28,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:28,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:26:28,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:28,323 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:26:28,324 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:26:28,352 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:26:28,378 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 01:26:28,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:28,482 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:26:28,486 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:28,517 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:26:28,574 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:28,579 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:26:28,604 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 01:26:28,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370288343] [2020-07-21 01:26:28,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:28,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:28,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416907512] [2020-07-21 01:26:28,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:28,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:28,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:28,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:28,608 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:26:30,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:30,400 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:26:30,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:26:30,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 128 [2020-07-21 01:26:30,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:30,408 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:26:30,408 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:26:30,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:26:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:26:30,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:26:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:26:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1272 transitions. [2020-07-21 01:26:30,470 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1272 transitions. Word has length 128 [2020-07-21 01:26:30,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:30,471 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1272 transitions. [2020-07-21 01:26:30,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:30,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1272 transitions. [2020-07-21 01:26:30,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 01:26:30,476 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:30,477 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] [2020-07-21 01:26:30,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:30,690 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:30,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1552967928, now seen corresponding path program 1 times [2020-07-21 01:26:30,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:30,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471397039] [2020-07-21 01:26:30,692 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:30,797 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:30,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:30,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:30,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:30,857 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 01:26:30,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:30,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471397039] [2020-07-21 01:26:30,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:30,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:30,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373273016] [2020-07-21 01:26:30,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:30,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:30,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:30,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:30,860 INFO L87 Difference]: Start difference. First operand 1015 states and 1272 transitions. Second operand 3 states. [2020-07-21 01:26:31,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:31,466 INFO L93 Difference]: Finished difference Result 2323 states and 2938 transitions. [2020-07-21 01:26:31,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:31,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-21 01:26:31,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:31,487 INFO L225 Difference]: With dead ends: 2323 [2020-07-21 01:26:31,487 INFO L226 Difference]: Without dead ends: 1314 [2020-07-21 01:26:31,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:31,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-07-21 01:26:31,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-07-21 01:26:31,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-07-21 01:26:31,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1639 transitions. [2020-07-21 01:26:31,577 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1639 transitions. Word has length 142 [2020-07-21 01:26:31,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:31,578 INFO L479 AbstractCegarLoop]: Abstraction has 1314 states and 1639 transitions. [2020-07-21 01:26:31,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:26:31,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1639 transitions. [2020-07-21 01:26:31,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 01:26:31,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:31,596 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:31,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:31,810 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:31,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:31,811 INFO L82 PathProgramCache]: Analyzing trace with hash -748230946, now seen corresponding path program 1 times [2020-07-21 01:26:31,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:31,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143568619] [2020-07-21 01:26:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:31,995 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:31,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:31,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:26:32,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:26:32,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:32,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143568619] [2020-07-21 01:26:32,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:32,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:32,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480006111] [2020-07-21 01:26:32,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:32,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:32,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:32,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:32,050 INFO L87 Difference]: Start difference. First operand 1314 states and 1639 transitions. Second operand 3 states. [2020-07-21 01:26:32,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:32,635 INFO L93 Difference]: Finished difference Result 3231 states and 4165 transitions. [2020-07-21 01:26:32,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:32,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-07-21 01:26:32,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:32,648 INFO L225 Difference]: With dead ends: 3231 [2020-07-21 01:26:32,649 INFO L226 Difference]: Without dead ends: 1923 [2020-07-21 01:26:32,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:32,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2020-07-21 01:26:32,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1913. [2020-07-21 01:26:32,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1913 states. [2020-07-21 01:26:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2431 transitions. [2020-07-21 01:26:32,721 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2431 transitions. Word has length 149 [2020-07-21 01:26:32,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:32,722 INFO L479 AbstractCegarLoop]: Abstraction has 1913 states and 2431 transitions. [2020-07-21 01:26:32,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:26:32,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2431 transitions. [2020-07-21 01:26:32,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 01:26:32,738 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:32,738 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:32,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:32,953 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:32,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:32,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1918758230, now seen corresponding path program 1 times [2020-07-21 01:26:32,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:32,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230415499] [2020-07-21 01:26:32,954 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:33,049 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:33,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:33,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:26:33,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:33,091 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:26:33,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:26:33,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230415499] [2020-07-21 01:26:33,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:33,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:33,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447629466] [2020-07-21 01:26:33,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:33,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:33,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:33,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:33,176 INFO L87 Difference]: Start difference. First operand 1913 states and 2431 transitions. Second operand 7 states. [2020-07-21 01:26:34,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:34,131 INFO L93 Difference]: Finished difference Result 5221 states and 7151 transitions. [2020-07-21 01:26:34,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:26:34,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2020-07-21 01:26:34,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:34,155 INFO L225 Difference]: With dead ends: 5221 [2020-07-21 01:26:34,155 INFO L226 Difference]: Without dead ends: 3314 [2020-07-21 01:26:34,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 305 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 01:26:34,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3314 states. [2020-07-21 01:26:34,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3314 to 3262. [2020-07-21 01:26:34,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3262 states. [2020-07-21 01:26:34,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4135 transitions. [2020-07-21 01:26:34,272 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4135 transitions. Word has length 155 [2020-07-21 01:26:34,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:34,273 INFO L479 AbstractCegarLoop]: Abstraction has 3262 states and 4135 transitions. [2020-07-21 01:26:34,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:34,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4135 transitions. [2020-07-21 01:26:34,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-21 01:26:34,282 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:34,282 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:34,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:34,497 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:34,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:34,497 INFO L82 PathProgramCache]: Analyzing trace with hash -2019464660, now seen corresponding path program 1 times [2020-07-21 01:26:34,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:34,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259599361] [2020-07-21 01:26:34,499 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:34,613 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:34,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:34,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:34,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:34,657 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:26:34,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:34,736 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:26:34,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259599361] [2020-07-21 01:26:34,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:34,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:34,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505194402] [2020-07-21 01:26:34,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:34,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:34,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:34,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:34,739 INFO L87 Difference]: Start difference. First operand 3262 states and 4135 transitions. Second operand 7 states. [2020-07-21 01:26:35,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:35,876 INFO L93 Difference]: Finished difference Result 7436 states and 9501 transitions. [2020-07-21 01:26:35,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:26:35,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-07-21 01:26:35,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:35,892 INFO L225 Difference]: With dead ends: 7436 [2020-07-21 01:26:35,892 INFO L226 Difference]: Without dead ends: 2998 [2020-07-21 01:26:35,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 335 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:26:35,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2020-07-21 01:26:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2944. [2020-07-21 01:26:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2944 states. [2020-07-21 01:26:35,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 3587 transitions. [2020-07-21 01:26:35,993 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 3587 transitions. Word has length 170 [2020-07-21 01:26:35,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:35,994 INFO L479 AbstractCegarLoop]: Abstraction has 2944 states and 3587 transitions. [2020-07-21 01:26:35,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:35,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 3587 transitions. [2020-07-21 01:26:36,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-07-21 01:26:36,005 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:36,006 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:26:36,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:36,221 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:36,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:36,221 INFO L82 PathProgramCache]: Analyzing trace with hash -387416969, now seen corresponding path program 1 times [2020-07-21 01:26:36,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:36,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104153789] [2020-07-21 01:26:36,222 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:36,338 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:36,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:36,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:36,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:26:36,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:26:36,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104153789] [2020-07-21 01:26:36,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:36,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:26:36,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040608957] [2020-07-21 01:26:36,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:26:36,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:36,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:26:36,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:36,482 INFO L87 Difference]: Start difference. First operand 2944 states and 3587 transitions. Second operand 7 states. [2020-07-21 01:26:37,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:37,847 INFO L93 Difference]: Finished difference Result 5890 states and 7199 transitions. [2020-07-21 01:26:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:26:37,853 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-07-21 01:26:37,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:37,866 INFO L225 Difference]: With dead ends: 5890 [2020-07-21 01:26:37,866 INFO L226 Difference]: Without dead ends: 2644 [2020-07-21 01:26:37,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 367 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:26:37,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2020-07-21 01:26:37,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2631. [2020-07-21 01:26:37,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2631 states. [2020-07-21 01:26:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 2945 transitions. [2020-07-21 01:26:37,941 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 2945 transitions. Word has length 186 [2020-07-21 01:26:37,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:37,942 INFO L479 AbstractCegarLoop]: Abstraction has 2631 states and 2945 transitions. [2020-07-21 01:26:37,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:26:37,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 2945 transitions. [2020-07-21 01:26:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-21 01:26:37,950 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:37,950 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:38,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:38,165 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:38,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:38,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1741109046, now seen corresponding path program 1 times [2020-07-21 01:26:38,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:38,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932603209] [2020-07-21 01:26:38,166 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:38,264 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:38,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:38,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 01:26:38,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 01:26:38,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:38,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932603209] [2020-07-21 01:26:38,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:38,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:38,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849429994] [2020-07-21 01:26:38,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:38,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:38,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:38,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:38,306 INFO L87 Difference]: Start difference. First operand 2631 states and 2945 transitions. Second operand 3 states. [2020-07-21 01:26:38,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:38,841 INFO L93 Difference]: Finished difference Result 5685 states and 6416 transitions. [2020-07-21 01:26:38,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:38,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-07-21 01:26:38,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:38,855 INFO L225 Difference]: With dead ends: 5685 [2020-07-21 01:26:38,855 INFO L226 Difference]: Without dead ends: 3060 [2020-07-21 01:26:38,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:38,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2020-07-21 01:26:38,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 3060. [2020-07-21 01:26:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3060 states. [2020-07-21 01:26:38,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 3412 transitions. [2020-07-21 01:26:38,979 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 3412 transitions. Word has length 195 [2020-07-21 01:26:38,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:38,979 INFO L479 AbstractCegarLoop]: Abstraction has 3060 states and 3412 transitions. [2020-07-21 01:26:38,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:26:38,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 3412 transitions. [2020-07-21 01:26:38,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-21 01:26:38,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:38,988 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-07-21 01:26:39,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:39,205 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:39,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:39,205 INFO L82 PathProgramCache]: Analyzing trace with hash 830010778, now seen corresponding path program 1 times [2020-07-21 01:26:39,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:39,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809432032] [2020-07-21 01:26:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:39,326 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:26:39,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:39,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:39,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:39,375 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:26:39,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 121 proven. 23 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 01:26:39,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809432032] [2020-07-21 01:26:39,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:26:39,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:26:39,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373724086] [2020-07-21 01:26:39,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:26:39,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:39,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:26:39,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:26:39,467 INFO L87 Difference]: Start difference. First operand 3060 states and 3412 transitions. Second operand 6 states. [2020-07-21 01:26:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:39,867 INFO L93 Difference]: Finished difference Result 5348 states and 5931 transitions. [2020-07-21 01:26:39,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:26:39,867 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2020-07-21 01:26:39,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:39,875 INFO L225 Difference]: With dead ends: 5348 [2020-07-21 01:26:39,875 INFO L226 Difference]: Without dead ends: 2294 [2020-07-21 01:26:39,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 394 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:26:39,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2020-07-21 01:26:39,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2144. [2020-07-21 01:26:39,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2144 states. [2020-07-21 01:26:39,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 2144 states and 2325 transitions. [2020-07-21 01:26:39,926 INFO L78 Accepts]: Start accepts. Automaton has 2144 states and 2325 transitions. Word has length 200 [2020-07-21 01:26:39,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:39,926 INFO L479 AbstractCegarLoop]: Abstraction has 2144 states and 2325 transitions. [2020-07-21 01:26:39,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:26:39,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2144 states and 2325 transitions. [2020-07-21 01:26:39,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-07-21 01:26:39,934 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:39,934 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:26:40,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:40,148 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:40,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:40,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1211519974, now seen corresponding path program 1 times [2020-07-21 01:26:40,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:40,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885752418] [2020-07-21 01:26:40,149 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:40,276 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:40,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:40,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:26:40,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 01:26:40,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:40,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885752418] [2020-07-21 01:26:40,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:40,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:40,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974725033] [2020-07-21 01:26:40,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:40,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:40,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:40,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:40,353 INFO L87 Difference]: Start difference. First operand 2144 states and 2325 transitions. Second operand 3 states. [2020-07-21 01:26:40,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:40,893 INFO L93 Difference]: Finished difference Result 4948 states and 5422 transitions. [2020-07-21 01:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:40,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-07-21 01:26:40,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:40,895 INFO L225 Difference]: With dead ends: 4948 [2020-07-21 01:26:40,895 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:26:40,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:40,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:26:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:26:40,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:26:40,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:26:40,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 249 [2020-07-21 01:26:40,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:40,908 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:26:40,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:26:40,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:26:40,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:26:41,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:41,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:26:41,700 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 108 [2020-07-21 01:26:41,813 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 119 [2020-07-21 01:26:43,475 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 173 DAG size of output: 109 [2020-07-21 01:26:44,121 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 59 [2020-07-21 01:26:44,755 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 59 [2020-07-21 01:26:44,759 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:26:44,759 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~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 01:26:44,759 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:26:44,759 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,760 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,760 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,760 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,760 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,760 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:26:44,760 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:26:44,760 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:26:44,760 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:26:44,761 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:26:44,761 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:26:44,761 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:26:44,761 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:26:44,761 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:26:44,761 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:26:44,761 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:26:44,762 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:26:44,763 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:26:44,764 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:26:44,764 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:26:44,764 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:26:44,764 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,764 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,764 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,764 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,764 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,765 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 475) no Hoare annotation was computed. [2020-07-21 01:26:44,765 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:26:44,765 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:26:44,765 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:26:44,765 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:26:44,765 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:26:44,765 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:26:44,765 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:26:44,766 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:26:44,766 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:26:44,766 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:26:44,766 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:26:44,766 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,766 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,766 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,766 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,767 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,767 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:26:44,767 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:26:44,767 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:26:44,767 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:26:44,767 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:26:44,767 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:26:44,767 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:26:44,767 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:26:44,768 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:26:44,768 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:26:44,768 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:26:44,768 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:26:44,769 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:26:44,769 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,770 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,770 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,770 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,770 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,770 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:26:44,770 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:26:44,770 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:26:44,770 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:26:44,771 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:26:44,771 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:26:44,771 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:26:44,771 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:26:44,771 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:26:44,771 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:26:44,771 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:26:44,771 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:26:44,771 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:26:44,772 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:26:44,772 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:26:44,772 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:26:44,772 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,772 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,772 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,772 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,772 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:26:44,772 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,773 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:26:44,773 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,773 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:26:44,773 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:26:44,773 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:26:44,773 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,773 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,773 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:26:44,774 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:26:44,774 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:26:44,774 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:26:44,774 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:26:44,774 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:26:44,774 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:26:44,774 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:26:44,774 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:26:44,774 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:26:44,775 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:26:44,775 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,775 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,775 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,775 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,775 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,775 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,775 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:26:44,775 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:26:44,776 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:26:44,776 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:26:44,776 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:26:44,776 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:26:44,776 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:26:44,776 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:26:44,776 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:26:44,776 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:26:44,776 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:26:44,777 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,777 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,777 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,777 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,777 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,777 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,777 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:26:44,777 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:26:44,778 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:26:44,778 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:26:44,778 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:26:44,778 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:26:44,778 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:26:44,778 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:26:44,778 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:26:44,778 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:26:44,778 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:26:44,779 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:26:44,779 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:26:44,779 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:26:44,779 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,779 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,779 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,780 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse18 (not (= 1 ~a21~0))) (.cse13 (= 1 |old(~a25~0)|)) (.cse15 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse6 (<= |old(~a28~0)| ~a28~0)) (.cse12 (= ~a25~0 |old(~a25~0)|))) (let ((.cse17 (not (< 8 |old(~a28~0)|))) (.cse22 (not (<= |old(~a28~0)| 9))) (.cse14 (<= ~a11~0 |old(~a11~0)|)) (.cse19 (not (<= |old(~a11~0)| 0))) (.cse24 (and .cse15 .cse5 .cse6 .cse12)) (.cse16 (not (<= |old(~a17~0)| 7))) (.cse0 (= 1 |old(~a11~0)|)) (.cse9 (not .cse13)) (.cse1 (<= ~a28~0 |old(~a28~0)|)) (.cse2 (<= ~a17~0 8)) (.cse4 (not (= 1 ~a11~0))) (.cse7 (= 1 ~a25~0)) (.cse10 (not (<= |old(~a17~0)| 8))) (.cse21 (not (= 1 |old(~a19~0)|))) (.cse8 (not (<= 8 |old(~a17~0)|))) (.cse3 (<= 8 ~a17~0)) (.cse23 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse18)) (.cse20 (not (<= 10 |old(~a28~0)|))) (.cse11 (not (< |old(~a28~0)| 11)))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10 .cse11) (or (not (<= |old(~a28~0)| 7)) .cse8 (and .cse1 .cse2 .cse3 .cse5 .cse6 .cse12) .cse10) (or (and .cse13 (not (< 9 |old(~a28~0)|))) (and .cse14 .cse15 .cse5 .cse6 .cse12) .cse16 .cse17 .cse18 .cse19) (or .cse14 .cse9 .cse20 .cse10 .cse18 .cse19 .cse11) (or .cse21 .cse14 .cse16 .cse18 .cse19) (or .cse21 (and .cse2 .cse3 (<= ~a28~0 9) .cse5 .cse6 .cse12) .cse22 .cse8 .cse17 .cse10) (or .cse21 .cse22 .cse8 .cse9 (and .cse1 .cse2 .cse3 .cse5 .cse6 .cse7) .cse10) (or .cse9 .cse16 (and .cse15 .cse5 .cse23 .cse6 .cse7)) (or .cse0 .cse22 .cse8 .cse10 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse12)) (or .cse14 .cse22 .cse8 .cse10 .cse18 .cse19) (or .cse21 .cse24 .cse16) (or .cse21 .cse14 (not (= 10 |old(~a28~0)|)) (not (= 8 |old(~a17~0)|)) (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|))) .cse18 .cse19) (or .cse24 .cse16 .cse20) (or .cse21 .cse0 .cse8 .cse9 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse23 .cse6 .cse7) .cse10) (or .cse21 .cse8 (and .cse15 .cse3 (< ~a28~0 11) .cse5 .cse23 .cse6 .cse12) .cse20 .cse11)))) [2020-07-21 01:26:44,780 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,780 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,780 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,780 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:26:44,780 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:26:44,780 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:26:44,781 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:26:44,782 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,782 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,782 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,782 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,782 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,782 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,782 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:26:44,782 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:26:44,782 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:26:44,783 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:26:44,783 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:26:44,783 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:26:44,783 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:26:44,783 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:26:44,783 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:26:44,783 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:26:44,783 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:26:44,783 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:26:44,784 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:26:44,784 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:26:44,784 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:26:44,784 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:26:44,784 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,784 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,784 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,784 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,785 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:26:44,785 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:26:44,785 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:26:44,785 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:26:44,785 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:26:44,785 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:26:44,785 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:26:44,785 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:26:44,785 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:26:44,786 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:26:44,786 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:26:44,786 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:26:44,786 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:26:44,786 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:26:44,786 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:26:44,786 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:26:44,786 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:26:44,786 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:26:44,787 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:26:44,787 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:26:44,787 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:26:44,787 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 01:26:44,787 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:26:44,787 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:26:44,787 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and (<= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|))) [2020-07-21 01:26:44,788 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse6 (< ~a28~0 11)) (.cse4 (< 8 ~a28~0)) (.cse7 (<= 10 ~a28~0)) (.cse5 (<= ~a17~0 7)) (.cse2 (not (= 1 ~a11~0))) (.cse9 (<= 8 ~a17~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse8 (<= ~a28~0 9)) (.cse3 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= ~a11~0 0) .cse5) (and .cse1 .cse6 .cse2 .cse3) (and .cse0 (<= ~a17~0 |old(~a17~0)|) .cse6 .cse7) (and .cse0 .cse4 .cse1 .cse8) (and .cse0 .cse5) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse7) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse5 .cse3) (and .cse1 .cse9 .cse8 .cse2) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse1 .cse9 (<= ~a28~0 7)) (and .cse0 .cse1 .cse8 .cse3))) [2020-07-21 01:26:44,788 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:26:44,788 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:26:44,788 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse6 (< ~a28~0 11)) (.cse4 (< 8 ~a28~0)) (.cse7 (<= 10 ~a28~0)) (.cse5 (<= ~a17~0 7)) (.cse2 (not (= 1 ~a11~0))) (.cse9 (<= 8 ~a17~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse8 (<= ~a28~0 9)) (.cse3 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= ~a11~0 0) .cse5) (and .cse1 .cse6 .cse2 .cse3) (and .cse0 (<= ~a17~0 |old(~a17~0)|) .cse6 .cse7) (and .cse0 .cse4 .cse1 .cse8) (and .cse0 .cse5) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse7) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse5 .cse3) (and .cse1 .cse9 .cse8 .cse2) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse1 .cse9 (<= ~a28~0 7)) (and .cse0 .cse1 .cse8 .cse3))) [2020-07-21 01:26:44,788 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:26:44,788 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:26:44,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:26:44 BoogieIcfgContainer [2020-07-21 01:26:44,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:26:44,827 INFO L168 Benchmark]: Toolchain (without parser) took 27232.70 ms. Allocated memory was 137.4 MB in the beginning and 560.5 MB in the end (delta: 423.1 MB). Free memory was 99.5 MB in the beginning and 299.6 MB in the end (delta: -200.0 MB). Peak memory consumption was 404.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:44,828 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-21 01:26:44,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.89 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 99.1 MB in the beginning and 170.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:44,836 INFO L168 Benchmark]: Boogie Preprocessor took 98.91 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 165.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:44,837 INFO L168 Benchmark]: RCFGBuilder took 1349.33 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 165.7 MB in the beginning and 181.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:44,838 INFO L168 Benchmark]: TraceAbstraction took 25015.22 ms. Allocated memory was 234.4 MB in the beginning and 560.5 MB in the end (delta: 326.1 MB). Free memory was 181.2 MB in the beginning and 299.6 MB in the end (delta: -118.4 MB). Peak memory consumption was 389.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:26:44,847 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.89 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 99.1 MB in the beginning and 170.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.91 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 165.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1349.33 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 165.7 MB in the beginning and 181.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25015.22 ms. Allocated memory was 234.4 MB in the beginning and 560.5 MB in the end (delta: 326.1 MB). Free memory was 181.2 MB in the beginning and 299.6 MB in the end (delta: -118.4 MB). Peak memory consumption was 389.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 475]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((((!(1 == \old(a19)) || (((1 == a19 && a17 <= 8) && !(1 == a11)) && 1 == a25)) || ((8 < a28 && a11 <= 0) && a17 <= 7)) || (((a17 <= 8 && a28 < 11) && !(1 == a11)) && 1 == a25)) || (((1 == a19 && a17 <= \old(a17)) && a28 < 11) && 10 <= a28)) || (((1 == a19 && 8 < a28) && a17 <= 8) && a28 <= 9)) || (1 == a19 && a17 <= 7)) || !(7 == \old(a28))) || (a17 <= 7 && 10 <= a28)) || !(1 == a21)) || !(\old(a11) <= 0)) || (a17 <= 7 && 1 == a25)) || (((a17 <= 8 && 8 <= a17) && a28 <= 9) && !(1 == a11))) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || ((a17 <= 8 && 8 <= a17) && a28 <= 7)) || (((1 == a19 && a17 <= 8) && a28 <= 9) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.2s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1068 SDtfs, 5027 SDslu, 804 SDs, 0 SdLazy, 9185 SolverSat, 1269 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2797 GetRequests, 2690 SyntacticMatches, 8 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3262occurred 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: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 341 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 168 PreInvPairs, 234 NumberOfFragments, 916 HoareAnnotationTreeSize, 168 FomulaSimplifications, 3268 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5600 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1797 NumberOfCodeBlocks, 1196 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2735 ConstructedInterpolants, 0 QuantifiedInterpolants, 1549601 SizeOfPredicates, 39 NumberOfNonLiveVariables, 3961 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 1312/1359 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...