/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 DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:11:19,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:11:19,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:11:19,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 20:11:19,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:11:19,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:11:19,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:11:19,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:11:19,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:11:19,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:11:19,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:11:19,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:11:19,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:11:19,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:11:19,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:11:19,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:11:19,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:11:19,754 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 20:11:19,768 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:11:19,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:11:19,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:11:19,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:11:19,770 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:11:19,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:11:19,770 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:11:19,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:11:19,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:11:19,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:11:19,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:11:19,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:11:19,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:11:19,771 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:11:19,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:11:19,772 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:11:19,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:11:19,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:11:19,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:11:19,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:11:19,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:11:19,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:11:19,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:11:19,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:11:19,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:11:19,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:11:19,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:19,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:11:19,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:11:19,775 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 -> DAGSIZE 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 -> 2 [2020-07-21 20:11:20,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:11:20,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:11:20,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:11:20,091 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:11:20,092 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:11:20,094 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-21 20:11:20,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312cfa4ab/4e095a072b3543d0996bd5909bb4bcae/FLAG40a32431a [2020-07-21 20:11:20,737 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:11:20,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-21 20:11:20,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312cfa4ab/4e095a072b3543d0996bd5909bb4bcae/FLAG40a32431a [2020-07-21 20:11:21,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312cfa4ab/4e095a072b3543d0996bd5909bb4bcae [2020-07-21 20:11:21,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:11:21,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:11:21,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:11:21,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:11:21,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:11:21,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:11:21" (1/1) ... [2020-07-21 20:11:21,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5853e384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21, skipping insertion in model container [2020-07-21 20:11:21,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:11:21" (1/1) ... [2020-07-21 20:11:21,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:11:21,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:11:21,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:11:21,713 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:11:21,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:11:21,831 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:11:21,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21 WrapperNode [2020-07-21 20:11:21,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:11:21,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:11:21,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:11:21,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:11:21,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21" (1/1) ... [2020-07-21 20:11:21,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21" (1/1) ... [2020-07-21 20:11:21,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21" (1/1) ... [2020-07-21 20:11:21,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21" (1/1) ... [2020-07-21 20:11:21,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21" (1/1) ... [2020-07-21 20:11:21,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21" (1/1) ... [2020-07-21 20:11:21,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21" (1/1) ... [2020-07-21 20:11:21,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:11:21,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:11:21,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:11:21,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:11:21,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21" (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 20:11:22,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:11:22,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:11:22,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:11:22,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:11:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:11:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:11:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:11:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:11:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:11:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:11:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:11:23,450 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:11:23,450 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:11:23,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:11:23 BoogieIcfgContainer [2020-07-21 20:11:23,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:11:23,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:11:23,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:11:23,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:11:23,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:11:21" (1/3) ... [2020-07-21 20:11:23,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df84080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:11:23, skipping insertion in model container [2020-07-21 20:11:23,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:21" (2/3) ... [2020-07-21 20:11:23,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df84080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:11:23, skipping insertion in model container [2020-07-21 20:11:23,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:11:23" (3/3) ... [2020-07-21 20:11:23,465 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label13.c [2020-07-21 20:11:23,475 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:11:23,482 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:11:23,492 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:11:23,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:11:23,517 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:11:23,518 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:11:23,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:11:23,518 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:11:23,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:11:23,518 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:11:23,519 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:11:23,542 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 20:11:23,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 20:11:23,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:23,554 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] [2020-07-21 20:11:23,554 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:23,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:23,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1614181646, now seen corresponding path program 1 times [2020-07-21 20:11:23,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:23,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649479176] [2020-07-21 20:11:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:23,716 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:23,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:23,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:11:23,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:23,799 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 20:11:23,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:23,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649479176] [2020-07-21 20:11:23,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:23,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:23,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396368498] [2020-07-21 20:11:23,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:23,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:23,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:23,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:23,831 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 20:11:24,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:24,895 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 20:11:24,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:24,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-21 20:11:24,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:24,913 INFO L225 Difference]: With dead ends: 586 [2020-07-21 20:11:24,914 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 20:11:24,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 20:11:24,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 20:11:24,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 20:11:24,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 20:11:24,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-21 20:11:24,999 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 61 [2020-07-21 20:11:25,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:25,000 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-21 20:11:25,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-21 20:11:25,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 20:11:25,007 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:25,007 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:25,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:25,221 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:25,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:25,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1316913554, now seen corresponding path program 1 times [2020-07-21 20:11:25,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:25,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156151627] [2020-07-21 20:11:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:25,322 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:25,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:25,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:25,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:25,375 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:25,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:25,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156151627] [2020-07-21 20:11:25,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:25,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:25,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20239008] [2020-07-21 20:11:25,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:25,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:25,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:25,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:25,380 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 3 states. [2020-07-21 20:11:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:26,130 INFO L93 Difference]: Finished difference Result 868 states and 1277 transitions. [2020-07-21 20:11:26,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:26,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-21 20:11:26,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:26,139 INFO L225 Difference]: With dead ends: 868 [2020-07-21 20:11:26,139 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 20:11:26,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 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 20:11:26,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 20:11:26,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-21 20:11:26,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 20:11:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 762 transitions. [2020-07-21 20:11:26,178 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 762 transitions. Word has length 135 [2020-07-21 20:11:26,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:26,179 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 762 transitions. [2020-07-21 20:11:26,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 762 transitions. [2020-07-21 20:11:26,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 20:11:26,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:26,183 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:26,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:26,399 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:26,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:26,401 INFO L82 PathProgramCache]: Analyzing trace with hash 2120193425, now seen corresponding path program 1 times [2020-07-21 20:11:26,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:26,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544487453] [2020-07-21 20:11:26,403 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:26,501 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:26,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:26,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:26,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:26,584 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:26,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:26,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544487453] [2020-07-21 20:11:26,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:26,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:26,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551534663] [2020-07-21 20:11:26,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:26,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:26,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:26,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:26,598 INFO L87 Difference]: Start difference. First operand 580 states and 762 transitions. Second operand 3 states. [2020-07-21 20:11:27,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:27,310 INFO L93 Difference]: Finished difference Result 1440 states and 1957 transitions. [2020-07-21 20:11:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:27,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-07-21 20:11:27,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:27,316 INFO L225 Difference]: With dead ends: 1440 [2020-07-21 20:11:27,317 INFO L226 Difference]: Without dead ends: 866 [2020-07-21 20:11:27,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 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 20:11:27,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-21 20:11:27,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2020-07-21 20:11:27,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-21 20:11:27,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1139 transitions. [2020-07-21 20:11:27,374 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1139 transitions. Word has length 140 [2020-07-21 20:11:27,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:27,375 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1139 transitions. [2020-07-21 20:11:27,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1139 transitions. [2020-07-21 20:11:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 20:11:27,386 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:27,387 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:11:27,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:27,598 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:27,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:27,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1756677455, now seen corresponding path program 1 times [2020-07-21 20:11:27,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:27,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581236101] [2020-07-21 20:11:27,600 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:27,687 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:27,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:27,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:27,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:27,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:27,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581236101] [2020-07-21 20:11:27,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:27,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:27,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119841642] [2020-07-21 20:11:27,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:27,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:27,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:27,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:27,741 INFO L87 Difference]: Start difference. First operand 866 states and 1139 transitions. Second operand 3 states. [2020-07-21 20:11:28,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:28,439 INFO L93 Difference]: Finished difference Result 2012 states and 2717 transitions. [2020-07-21 20:11:28,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:28,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2020-07-21 20:11:28,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:28,448 INFO L225 Difference]: With dead ends: 2012 [2020-07-21 20:11:28,448 INFO L226 Difference]: Without dead ends: 1152 [2020-07-21 20:11:28,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 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 20:11:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-21 20:11:28,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2020-07-21 20:11:28,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2020-07-21 20:11:28,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1466 transitions. [2020-07-21 20:11:28,485 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1466 transitions. Word has length 156 [2020-07-21 20:11:28,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:28,486 INFO L479 AbstractCegarLoop]: Abstraction has 1152 states and 1466 transitions. [2020-07-21 20:11:28,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1466 transitions. [2020-07-21 20:11:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-21 20:11:28,490 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:28,490 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:28,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:28,706 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:28,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:28,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1335928450, now seen corresponding path program 1 times [2020-07-21 20:11:28,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:28,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846129640] [2020-07-21 20:11:28,709 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:28,809 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:28,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:28,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:28,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:28,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:11:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:29,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846129640] [2020-07-21 20:11:29,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:11:29,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:11:29,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528103100] [2020-07-21 20:11:29,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:11:29,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:29,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:11:29,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:11:29,053 INFO L87 Difference]: Start difference. First operand 1152 states and 1466 transitions. Second operand 7 states. [2020-07-21 20:11:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:30,593 INFO L93 Difference]: Finished difference Result 3951 states and 5238 transitions. [2020-07-21 20:11:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 20:11:30,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-07-21 20:11:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:30,605 INFO L225 Difference]: With dead ends: 3951 [2020-07-21 20:11:30,605 INFO L226 Difference]: Without dead ends: 1921 [2020-07-21 20:11:30,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 421 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:11:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-21 20:11:30,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1885. [2020-07-21 20:11:30,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-07-21 20:11:30,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2211 transitions. [2020-07-21 20:11:30,675 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2211 transitions. Word has length 213 [2020-07-21 20:11:30,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:30,676 INFO L479 AbstractCegarLoop]: Abstraction has 1885 states and 2211 transitions. [2020-07-21 20:11:30,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:11:30,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2211 transitions. [2020-07-21 20:11:30,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-07-21 20:11:30,681 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:30,682 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:30,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:30,897 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:30,897 INFO L82 PathProgramCache]: Analyzing trace with hash -45528551, now seen corresponding path program 1 times [2020-07-21 20:11:30,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:30,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878977389] [2020-07-21 20:11:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:31,005 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:31,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:31,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:31,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:31,054 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 20:11:31,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:31,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878977389] [2020-07-21 20:11:31,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:31,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:31,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308338052] [2020-07-21 20:11:31,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:31,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:31,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:31,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:31,057 INFO L87 Difference]: Start difference. First operand 1885 states and 2211 transitions. Second operand 3 states. [2020-07-21 20:11:31,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:31,737 INFO L93 Difference]: Finished difference Result 4050 states and 4819 transitions. [2020-07-21 20:11:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:31,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-07-21 20:11:31,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:31,752 INFO L225 Difference]: With dead ends: 4050 [2020-07-21 20:11:31,753 INFO L226 Difference]: Without dead ends: 2169 [2020-07-21 20:11:31,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 226 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 20:11:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2020-07-21 20:11:31,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2024. [2020-07-21 20:11:31,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2020-07-21 20:11:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 2390 transitions. [2020-07-21 20:11:31,832 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 2390 transitions. Word has length 228 [2020-07-21 20:11:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:31,832 INFO L479 AbstractCegarLoop]: Abstraction has 2024 states and 2390 transitions. [2020-07-21 20:11:31,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 2390 transitions. [2020-07-21 20:11:31,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-21 20:11:31,839 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:31,839 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:32,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:32,055 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:32,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:32,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1221820657, now seen corresponding path program 1 times [2020-07-21 20:11:32,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:32,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061718434] [2020-07-21 20:11:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:32,165 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:32,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:32,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:32,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 20:11:32,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:32,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061718434] [2020-07-21 20:11:32,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:32,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:32,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881841860] [2020-07-21 20:11:32,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:32,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:32,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:32,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:32,217 INFO L87 Difference]: Start difference. First operand 2024 states and 2390 transitions. Second operand 3 states. [2020-07-21 20:11:32,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:32,828 INFO L93 Difference]: Finished difference Result 2026 states and 2391 transitions. [2020-07-21 20:11:32,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:32,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-07-21 20:11:32,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:32,839 INFO L225 Difference]: With dead ends: 2026 [2020-07-21 20:11:32,839 INFO L226 Difference]: Without dead ends: 2024 [2020-07-21 20:11:32,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 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 20:11:32,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2020-07-21 20:11:32,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 2024. [2020-07-21 20:11:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2020-07-21 20:11:32,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 2389 transitions. [2020-07-21 20:11:32,894 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 2389 transitions. Word has length 244 [2020-07-21 20:11:32,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:32,895 INFO L479 AbstractCegarLoop]: Abstraction has 2024 states and 2389 transitions. [2020-07-21 20:11:32,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:32,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 2389 transitions. [2020-07-21 20:11:32,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-21 20:11:32,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:32,902 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:33,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:33,117 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:33,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:33,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1248765022, now seen corresponding path program 1 times [2020-07-21 20:11:33,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:33,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806575707] [2020-07-21 20:11:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:33,263 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:33,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:33,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:11:33,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 20:11:33,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:33,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806575707] [2020-07-21 20:11:33,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:33,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:11:33,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373650063] [2020-07-21 20:11:33,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:11:33,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:33,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:11:33,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:11:33,336 INFO L87 Difference]: Start difference. First operand 2024 states and 2389 transitions. Second operand 5 states. [2020-07-21 20:11:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:34,182 INFO L93 Difference]: Finished difference Result 3943 states and 4678 transitions. [2020-07-21 20:11:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:11:34,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 257 [2020-07-21 20:11:34,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:34,192 INFO L225 Difference]: With dead ends: 3943 [2020-07-21 20:11:34,193 INFO L226 Difference]: Without dead ends: 2068 [2020-07-21 20:11:34,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:11:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2020-07-21 20:11:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2062. [2020-07-21 20:11:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2062 states. [2020-07-21 20:11:34,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2433 transitions. [2020-07-21 20:11:34,248 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2433 transitions. Word has length 257 [2020-07-21 20:11:34,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:34,249 INFO L479 AbstractCegarLoop]: Abstraction has 2062 states and 2433 transitions. [2020-07-21 20:11:34,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:11:34,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2433 transitions. [2020-07-21 20:11:34,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-21 20:11:34,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:34,258 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 20:11:34,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:34,463 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:34,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:34,464 INFO L82 PathProgramCache]: Analyzing trace with hash -649626018, now seen corresponding path program 1 times [2020-07-21 20:11:34,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:34,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662159858] [2020-07-21 20:11:34,465 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:34,604 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:34,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:34,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:34,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:34,633 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 20:11:34,633 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:34,698 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 20:11:34,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:11:34,785 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:34,786 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:34,789 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 20:11:34,789 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:35,038 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 234 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 20:11:35,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662159858] [2020-07-21 20:11:35,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:11:35,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:11:35,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526816057] [2020-07-21 20:11:35,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:11:35,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:35,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:11:35,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:11:35,043 INFO L87 Difference]: Start difference. First operand 2062 states and 2433 transitions. Second operand 6 states. [2020-07-21 20:11:36,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:36,021 INFO L93 Difference]: Finished difference Result 4011 states and 4817 transitions. [2020-07-21 20:11:36,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:11:36,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 327 [2020-07-21 20:11:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:36,034 INFO L225 Difference]: With dead ends: 4011 [2020-07-21 20:11:36,035 INFO L226 Difference]: Without dead ends: 2098 [2020-07-21 20:11:36,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 650 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:11:36,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-07-21 20:11:36,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1927. [2020-07-21 20:11:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2020-07-21 20:11:36,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2194 transitions. [2020-07-21 20:11:36,125 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2194 transitions. Word has length 327 [2020-07-21 20:11:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:36,126 INFO L479 AbstractCegarLoop]: Abstraction has 1927 states and 2194 transitions. [2020-07-21 20:11:36,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:11:36,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2194 transitions. [2020-07-21 20:11:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-07-21 20:11:36,143 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:36,144 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:36,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:36,359 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:36,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:36,361 INFO L82 PathProgramCache]: Analyzing trace with hash -467387859, now seen corresponding path program 1 times [2020-07-21 20:11:36,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:36,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188141319] [2020-07-21 20:11:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:11:36,699 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:36,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:36,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 20:11:36,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:36,738 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:36,739 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:36,741 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:36,742 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 20:11:36,745 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,746 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,748 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,751 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:36,752 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 20:11:36,753 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 20:11:36,756 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,758 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,759 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,760 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:36,762 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,764 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,765 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,766 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:36,769 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:36,770 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:36,771 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,773 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:36,774 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,775 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,777 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:36,779 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 20:11:54,577 WARN L193 SmtUtils]: Spent 17.71 s on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2020-07-21 20:11:54,616 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 20:11:54,730 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 20:11:54,731 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:54,732 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:54,762 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:54,911 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 20:11:54,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:11:55,035 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:55,036 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:55,038 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:55,039 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:55,065 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:55,066 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:55,202 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:55,204 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:55,207 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:55,209 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:55,211 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:55,211 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:55,212 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:55,213 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:55,213 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:55,214 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:55,220 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:55,221 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:55,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188141319] [2020-07-21 20:11:55,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 20:11:55,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 20:11:55,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975514315] [2020-07-21 20:11:55,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 20:11:55,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:55,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 20:11:55,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 20:11:55,342 INFO L87 Difference]: Start difference. First operand 1927 states and 2194 transitions. Second operand 8 states. [2020-07-21 20:11:58,252 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-07-21 20:15:07,358 WARN L193 SmtUtils]: Spent 22.76 s on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-07-21 20:15:26,670 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-07-21 20:15:40,981 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-21 20:16:39,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:16:39,908 INFO L93 Difference]: Finished difference Result 4895 states and 5728 transitions. [2020-07-21 20:16:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 20:16:39,916 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 372 [2020-07-21 20:16:39,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:16:39,931 INFO L225 Difference]: With dead ends: 4895 [2020-07-21 20:16:39,931 INFO L226 Difference]: Without dead ends: 3117 [2020-07-21 20:16:39,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 46.2s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-21 20:16:39,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2020-07-21 20:16:40,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 2962. [2020-07-21 20:16:40,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2962 states. [2020-07-21 20:16:40,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 3385 transitions. [2020-07-21 20:16:40,019 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 3385 transitions. Word has length 372 [2020-07-21 20:16:40,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:16:40,020 INFO L479 AbstractCegarLoop]: Abstraction has 2962 states and 3385 transitions. [2020-07-21 20:16:40,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 20:16:40,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 3385 transitions. [2020-07-21 20:16:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-07-21 20:16:40,031 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:16:40,032 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:16:40,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:16:40,246 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:16:40,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:16:40,246 INFO L82 PathProgramCache]: Analyzing trace with hash -145294626, now seen corresponding path program 1 times [2020-07-21 20:16:40,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:16:40,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283546027] [2020-07-21 20:16:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:16:40,436 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:16:40,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:16:40,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:16:40,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:16:40,492 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:16:40,492 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:16:40,493 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:16:40,494 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:16:40,494 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:16:40,496 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:16:40,496 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:16:40,746 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 21 [2020-07-21 20:16:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-07-21 20:16:41,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:16:41,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283546027] [2020-07-21 20:16:41,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:16:41,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:16:41,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769599084] [2020-07-21 20:16:41,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:16:41,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:16:41,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:16:41,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:16:41,295 INFO L87 Difference]: Start difference. First operand 2962 states and 3385 transitions. Second operand 3 states. [2020-07-21 20:16:44,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:16:44,937 INFO L93 Difference]: Finished difference Result 6063 states and 6952 transitions. [2020-07-21 20:16:44,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:16:44,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 391 [2020-07-21 20:16:44,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:16:44,943 INFO L225 Difference]: With dead ends: 6063 [2020-07-21 20:16:44,943 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:16:44,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:16:44,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:16:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:16:44,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:16:44,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:16:44,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 391 [2020-07-21 20:16:44,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:16:44,955 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:16:44,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:16:44,955 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:16:44,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:16:45,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:16:45,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:16:46,010 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 25 [2020-07-21 20:16:48,441 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 165 DAG size of output: 77 [2020-07-21 20:16:49,362 WARN L193 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 51 [2020-07-21 20:16:50,183 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 51 [2020-07-21 20:16:50,189 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:16:50,189 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 20:16:50,189 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:16:50,189 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 20:16:50,189 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,190 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,190 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,190 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,190 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,190 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,190 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 20:16:50,190 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 20:16:50,191 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 20:16:50,191 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 20:16:50,191 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 20:16:50,191 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 20:16:50,191 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 20:16:50,191 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 20:16:50,191 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 20:16:50,192 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 20:16:50,192 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 20:16:50,192 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,192 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,192 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,192 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,192 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,192 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 20:16:50,193 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 20:16:50,193 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 20:16:50,193 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 20:16:50,193 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 20:16:50,193 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 20:16:50,193 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 20:16:50,193 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 20:16:50,193 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,194 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 20:16:50,195 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 20:16:50,195 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 20:16:50,195 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 20:16:50,195 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 20:16:50,195 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 20:16:50,195 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 20:16:50,195 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 20:16:50,195 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 20:16:50,196 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 20:16:50,196 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,196 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,196 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,196 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,197 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,197 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 20:16:50,197 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 20:16:50,197 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 20:16:50,197 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 20:16:50,197 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 20:16:50,197 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 20:16:50,197 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 20:16:50,198 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 20:16:50,198 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 20:16:50,198 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 20:16:50,198 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 20:16:50,198 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 20:16:50,198 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 20:16:50,198 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,198 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,199 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,199 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,199 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,199 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 20:16:50,199 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 20:16:50,199 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 20:16:50,199 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 20:16:50,199 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 20:16:50,199 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,200 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,201 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 20:16:50,201 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 20:16:50,201 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 20:16:50,201 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 20:16:50,201 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 20:16:50,201 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 20:16:50,201 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 20:16:50,201 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 20:16:50,201 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 20:16:50,202 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 20:16:50,202 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 20:16:50,202 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 20:16:50,202 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 20:16:50,202 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,202 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,202 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,202 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,202 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 20:16:50,203 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,203 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,203 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 20:16:50,203 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 20:16:50,203 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 20:16:50,203 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 20:16:50,203 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 20:16:50,203 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 20:16:50,204 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 20:16:50,204 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 20:16:50,204 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 20:16:50,204 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 20:16:50,204 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 20:16:50,204 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 20:16:50,204 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 20:16:50,204 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,205 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,205 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,205 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,205 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,205 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,205 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 20:16:50,205 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 20:16:50,205 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 20:16:50,205 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 20:16:50,206 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 20:16:50,206 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 20:16:50,206 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 20:16:50,206 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 20:16:50,206 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 20:16:50,206 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 20:16:50,206 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 20:16:50,207 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse5 (not (< |old(~a19~0)| 10))) (.cse6 (not (<= 9 |old(~a19~0)|))) (.cse7 (<= 9 ~a19~0)) (.cse2 (<= |old(~a10~0)| ~a10~0)) (.cse3 (= ~a1~0 |old(~a1~0)|)) (.cse0 (not (<= |old(~a19~0)| 8))) (.cse1 (<= ~a19~0 |old(~a19~0)|)) (.cse8 (not (<= |old(~a10~0)| 2))) (.cse9 (not (<= |old(~a10~0)| 1)))) (and (or (not (<= 4 |old(~a10~0)|)) .cse0 (and .cse1 (<= 4 ~a10~0))) (or (and .cse2 .cse1 .cse3) (forall ((v_~a1~0_401 Int)) (let ((.cse4 (mod v_~a1~0_401 25))) (or (not (< v_~a1~0_401 0)) (= 0 .cse4) (not (<= 65 (* 5 .cse4))) (not (<= |old(~a1~0)| (+ (mod (+ (* .cse4 5) 10) 25) 13)))))) .cse0 (not (<= 2 |old(~a10~0)|))) (or .cse5 .cse6 (and .cse7 .cse2 .cse3 (< ~a19~0 10))) (or (not (<= |old(~a1~0)| 23)) (<= ~a1~0 23) .cse0) (or .cse5 (<= ~a10~0 2) .cse8) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0))) (or .cse6 (and .cse7 .cse2 .cse1 .cse3) .cse9) (or .cse0 .cse1 .cse8) (or (<= ~a10~0 1) .cse9))) [2020-07-21 20:16:50,207 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 20:16:50,207 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 20:16:50,207 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 20:16:50,207 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,207 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,207 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,208 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,208 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,208 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,208 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 20:16:50,208 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 20:16:50,208 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 20:16:50,208 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 20:16:50,208 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 20:16:50,209 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 20:16:50,209 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 20:16:50,209 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 20:16:50,209 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 20:16:50,209 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 20:16:50,209 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 20:16:50,209 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 20:16:50,209 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 20:16:50,210 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,210 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,210 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,210 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,210 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,210 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,210 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 20:16:50,210 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 20:16:50,210 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 20:16:50,211 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 20:16:50,212 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 20:16:50,213 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 20:16:50,213 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 20:16:50,213 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 20:16:50,213 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:16:50,213 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (= 23 ~a1~0) (< ~a19~0 10)) [2020-07-21 20:16:50,213 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:16:50,213 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:16:50,213 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|) (< ~a19~0 10)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|))) [2020-07-21 20:16:50,213 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:16:50,213 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (< ~a19~0 10)) (.cse2 (<= ~a19~0 8))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (and (exists ((v_~a1~0_401 Int)) (let ((.cse0 (mod v_~a1~0_401 25))) (and (< v_~a1~0_401 0) (not (= 0 .cse0)) (<= 65 (* 5 .cse0)) (<= ~a1~0 (+ (mod (+ (* .cse0 5) 10) 25) 13))))) .cse1) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and .cse2 (<= ~a10~0 2)) (and (<= 9 ~a19~0) .cse1) (and .cse2 (<= 4 ~a10~0)))) [2020-07-21 20:16:50,213 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 20:16:50,214 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 20:16:50,214 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (< ~a19~0 10)) (.cse2 (<= ~a19~0 8))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (and (exists ((v_~a1~0_401 Int)) (let ((.cse0 (mod v_~a1~0_401 25))) (and (< v_~a1~0_401 0) (not (= 0 .cse0)) (<= 65 (* 5 .cse0)) (<= ~a1~0 (+ (mod (+ (* .cse0 5) 10) 25) 13))))) .cse1) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and .cse2 (<= ~a10~0 2)) (and (<= 9 ~a19~0) .cse1) (and .cse2 (<= 4 ~a10~0)))) [2020-07-21 20:16:50,214 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:16:50,224 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,225 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,225 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,240 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,240 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:16:50 BoogieIcfgContainer [2020-07-21 20:16:50,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:16:50,247 INFO L168 Benchmark]: Toolchain (without parser) took 329168.96 ms. Allocated memory was 143.1 MB in the beginning and 556.3 MB in the end (delta: 413.1 MB). Free memory was 99.0 MB in the beginning and 286.5 MB in the end (delta: -187.5 MB). Peak memory consumption was 426.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:16:50,248 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 20:16:50,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.58 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 98.8 MB in the beginning and 168.8 MB in the end (delta: -70.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2020-07-21 20:16:50,249 INFO L168 Benchmark]: Boogie Preprocessor took 101.92 ms. Allocated memory is still 202.9 MB. Free memory was 168.8 MB in the beginning and 163.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:16:50,252 INFO L168 Benchmark]: RCFGBuilder took 1521.88 ms. Allocated memory was 202.9 MB in the beginning and 232.3 MB in the end (delta: 29.4 MB). Free memory was 163.8 MB in the beginning and 179.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2020-07-21 20:16:50,253 INFO L168 Benchmark]: TraceAbstraction took 326786.76 ms. Allocated memory was 232.3 MB in the beginning and 556.3 MB in the end (delta: 324.0 MB). Free memory was 179.2 MB in the beginning and 286.5 MB in the end (delta: -107.3 MB). Peak memory consumption was 417.3 MB. Max. memory is 7.1 GB. [2020-07-21 20:16:50,261 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 752.58 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 98.8 MB in the beginning and 168.8 MB in the end (delta: -70.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.92 ms. Allocated memory is still 202.9 MB. Free memory was 168.8 MB in the beginning and 163.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1521.88 ms. Allocated memory was 202.9 MB in the beginning and 232.3 MB in the end (delta: 29.4 MB). Free memory was 163.8 MB in the beginning and 179.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 326786.76 ms. Allocated memory was 232.3 MB in the beginning and 556.3 MB in the end (delta: 324.0 MB). Free memory was 179.2 MB in the beginning and 286.5 MB in the end (delta: -107.3 MB). Peak memory consumption was 417.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: 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: 582]: Loop Invariant [2020-07-21 20:16:50,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,277 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,277 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,277 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 20:16:50,278 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] Derived loop invariant: (((((((a10 <= 1 || !(\old(a19) < 10)) || !(\old(a10) <= 0)) || ((\exists v_~a1~0_401 : int :: ((v_~a1~0_401 < 0 && !(0 == v_~a1~0_401 % 25)) && 65 <= 5 * (v_~a1~0_401 % 25)) && a1 <= (v_~a1~0_401 % 25 * 5 + 10) % 25 + 13) && a19 < 10)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || (a19 <= 8 && a10 <= 2)) || (9 <= a19 && a19 < 10)) || (a19 <= 8 && 4 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 321.6s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 296.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 621 SDtfs, 2497 SDslu, 266 SDs, 0 SdLazy, 6689 SolverSat, 992 SolverUnsat, 110 SolverUnknown, 0 SolverNotchecked, 260.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3332 GetRequests, 3278 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 46.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2962occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 513 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 129 PreInvPairs, 195 NumberOfFragments, 374 HoareAnnotationTreeSize, 129 FomulaSimplifications, 2357 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4072 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 20.6s InterpolantComputationTime, 2524 NumberOfCodeBlocks, 2524 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3051 ConstructedInterpolants, 63 QuantifiedInterpolants, 2456351 SizeOfPredicates, 18 NumberOfNonLiveVariables, 4354 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 2611/2696 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...