/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 23:00:15,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 23:00:15,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 23:00:15,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 23:00:15,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 23:00:15,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 23:00:15,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 23:00:15,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 23:00:15,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 23:00:15,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 23:00:15,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 23:00:15,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 23:00:15,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 23:00:15,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 23:00:15,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 23:00:15,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 23:00:15,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 23:00:15,926 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 23:00:15,963 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 23:00:15,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 23:00:15,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 23:00:15,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 23:00:15,965 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 23:00:15,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 23:00:15,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 23:00:15,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 23:00:15,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 23:00:15,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 23:00:15,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 23:00:15,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 23:00:15,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 23:00:15,968 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 23:00:15,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 23:00:15,968 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 23:00:15,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 23:00:15,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 23:00:15,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 23:00:15,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 23:00:15,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 23:00:15,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 23:00:15,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 23:00:15,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 23:00:15,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 23:00:15,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 23:00:15,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:15,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 23:00:15,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 23:00:15,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 23:00:16,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 23:00:16,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 23:00:16,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 23:00:16,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 23:00:16,264 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 23:00:16,265 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label43.c [2020-07-21 23:00:16,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bab95551/a0f149735f5648cf9c889b9c44dedfc0/FLAGeaf46d3f9 [2020-07-21 23:00:16,873 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 23:00:16,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label43.c [2020-07-21 23:00:16,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bab95551/a0f149735f5648cf9c889b9c44dedfc0/FLAGeaf46d3f9 [2020-07-21 23:00:17,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bab95551/a0f149735f5648cf9c889b9c44dedfc0 [2020-07-21 23:00:17,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 23:00:17,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 23:00:17,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 23:00:17,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 23:00:17,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 23:00:17,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:00:17" (1/1) ... [2020-07-21 23:00:17,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1340591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17, skipping insertion in model container [2020-07-21 23:00:17,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:00:17" (1/1) ... [2020-07-21 23:00:17,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 23:00:17,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 23:00:17,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:00:17,685 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 23:00:17,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:00:17,938 INFO L208 MainTranslator]: Completed translation [2020-07-21 23:00:17,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17 WrapperNode [2020-07-21 23:00:17,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 23:00:17,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 23:00:17,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 23:00:17,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 23:00:17,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17" (1/1) ... [2020-07-21 23:00:17,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17" (1/1) ... [2020-07-21 23:00:17,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17" (1/1) ... [2020-07-21 23:00:17,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17" (1/1) ... [2020-07-21 23:00:18,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17" (1/1) ... [2020-07-21 23:00:18,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17" (1/1) ... [2020-07-21 23:00:18,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17" (1/1) ... [2020-07-21 23:00:18,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 23:00:18,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 23:00:18,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 23:00:18,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 23:00:18,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17" (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 23:00:18,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 23:00:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 23:00:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 23:00:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 23:00:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 23:00:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 23:00:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 23:00:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 23:00:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 23:00:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 23:00:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 23:00:19,392 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 23:00:19,393 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 23:00:19,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:00:19 BoogieIcfgContainer [2020-07-21 23:00:19,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 23:00:19,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 23:00:19,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 23:00:19,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 23:00:19,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:00:17" (1/3) ... [2020-07-21 23:00:19,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd0f4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:00:19, skipping insertion in model container [2020-07-21 23:00:19,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:17" (2/3) ... [2020-07-21 23:00:19,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd0f4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:00:19, skipping insertion in model container [2020-07-21 23:00:19,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:00:19" (3/3) ... [2020-07-21 23:00:19,409 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label43.c [2020-07-21 23:00:19,421 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 23:00:19,430 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 23:00:19,448 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 23:00:19,475 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 23:00:19,476 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 23:00:19,476 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 23:00:19,476 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 23:00:19,476 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 23:00:19,477 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 23:00:19,477 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 23:00:19,477 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 23:00:19,500 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 23:00:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-21 23:00:19,508 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:00:19,509 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] [2020-07-21 23:00:19,509 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:00:19,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:00:19,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1136502142, now seen corresponding path program 1 times [2020-07-21 23:00:19,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:00:19,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109207606] [2020-07-21 23:00:19,525 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:19,631 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:00:19,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:00:19,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 23:00:19,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:00:19,707 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 23:00:19,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:00:19,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109207606] [2020-07-21 23:00:19,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:00:19,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:00:19,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299753660] [2020-07-21 23:00:19,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:00:19,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:00:19,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:00:19,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:00:19,734 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 23:00:20,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:00:20,736 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 23:00:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:00:20,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-07-21 23:00:20,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:00:20,754 INFO L225 Difference]: With dead ends: 571 [2020-07-21 23:00:20,754 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 23:00:20,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 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 23:00:20,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 23:00:20,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 23:00:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 23:00:20,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 23:00:20,827 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 41 [2020-07-21 23:00:20,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:00:20,827 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 23:00:20,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:00:20,828 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 23:00:20,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 23:00:20,832 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:00:20,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:00:21,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:21,048 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:00:21,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:00:21,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1231039110, now seen corresponding path program 1 times [2020-07-21 23:00:21,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:00:21,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686884055] [2020-07-21 23:00:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 23:00:21,145 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:00:21,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:00:21,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 23:00:21,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:00:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 23:00:21,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:00:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 23:00:21,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686884055] [2020-07-21 23:00:21,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:00:21,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 23:00:21,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886028124] [2020-07-21 23:00:21,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 23:00:21,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:00:21,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 23:00:21,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 23:00:21,285 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 23:00:22,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:00:22,004 INFO L93 Difference]: Finished difference Result 586 states and 788 transitions. [2020-07-21 23:00:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 23:00:22,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-07-21 23:00:22,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:00:22,011 INFO L225 Difference]: With dead ends: 586 [2020-07-21 23:00:22,011 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 23:00:22,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 214 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 23:00:22,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 23:00:22,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 23:00:22,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 23:00:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 786 transitions. [2020-07-21 23:00:22,056 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 786 transitions. Word has length 111 [2020-07-21 23:00:22,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:00:22,057 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 786 transitions. [2020-07-21 23:00:22,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 23:00:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 786 transitions. [2020-07-21 23:00:22,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-21 23:00:22,062 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:00:22,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:00:22,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:22,278 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:00:22,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:00:22,279 INFO L82 PathProgramCache]: Analyzing trace with hash 255519829, now seen corresponding path program 1 times [2020-07-21 23:00:22,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:00:22,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12143189] [2020-07-21 23:00:22,281 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:22,381 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 23:00:22,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:00:22,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 23:00:22,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:00:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:00:22,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:00:22,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12143189] [2020-07-21 23:00:22,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:00:22,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 23:00:22,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989827610] [2020-07-21 23:00:22,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 23:00:22,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:00:22,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 23:00:22,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 23:00:22,455 INFO L87 Difference]: Start difference. First operand 584 states and 786 transitions. Second operand 5 states. [2020-07-21 23:00:23,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:00:23,467 INFO L93 Difference]: Finished difference Result 1321 states and 1762 transitions. [2020-07-21 23:00:23,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 23:00:23,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2020-07-21 23:00:23,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:00:23,472 INFO L225 Difference]: With dead ends: 1321 [2020-07-21 23:00:23,473 INFO L226 Difference]: Without dead ends: 743 [2020-07-21 23:00:23,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 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 23:00:23,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-07-21 23:00:23,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 596. [2020-07-21 23:00:23,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-07-21 23:00:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 794 transitions. [2020-07-21 23:00:23,521 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 794 transitions. Word has length 114 [2020-07-21 23:00:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:00:23,522 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 794 transitions. [2020-07-21 23:00:23,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 23:00:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 794 transitions. [2020-07-21 23:00:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 23:00:23,528 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:00:23,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:00:23,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:23,739 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:00:23,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:00:23,740 INFO L82 PathProgramCache]: Analyzing trace with hash -430353343, now seen corresponding path program 1 times [2020-07-21 23:00:23,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:00:23,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007932563] [2020-07-21 23:00:23,741 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:23,827 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:00:23,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:00:23,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 23:00:23,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:00:23,875 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:00:23,877 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:00:26,017 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 23:00:26,054 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 23:00:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:00:26,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:00:26,296 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:00:26,298 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:00:26,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007932563] [2020-07-21 23:00:26,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:00:26,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-07-21 23:00:26,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057506372] [2020-07-21 23:00:26,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 23:00:26,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:00:26,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 23:00:26,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 23:00:26,342 INFO L87 Difference]: Start difference. First operand 596 states and 794 transitions. Second operand 6 states. [2020-07-21 23:00:29,785 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 29 [2020-07-21 23:00:31,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:00:31,644 INFO L93 Difference]: Finished difference Result 1965 states and 2923 transitions. [2020-07-21 23:00:31,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 23:00:31,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2020-07-21 23:00:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:00:31,662 INFO L225 Difference]: With dead ends: 1965 [2020-07-21 23:00:31,663 INFO L226 Difference]: Without dead ends: 1518 [2020-07-21 23:00:31,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-07-21 23:00:31,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2020-07-21 23:00:31,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1337. [2020-07-21 23:00:31,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-07-21 23:00:31,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1831 transitions. [2020-07-21 23:00:31,783 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1831 transitions. Word has length 120 [2020-07-21 23:00:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:00:31,787 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1831 transitions. [2020-07-21 23:00:31,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 23:00:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1831 transitions. [2020-07-21 23:00:31,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-07-21 23:00:31,806 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:00:31,807 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, 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] [2020-07-21 23:00:32,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:32,024 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:00:32,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:00:32,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1886726183, now seen corresponding path program 1 times [2020-07-21 23:00:32,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:00:32,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57861909] [2020-07-21 23:00:32,025 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:32,151 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:00:32,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:00:32,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 23:00:32,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:00:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 23:00:32,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:00:32,411 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 23:00:32,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57861909] [2020-07-21 23:00:32,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:00:32,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2020-07-21 23:00:32,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844643890] [2020-07-21 23:00:32,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 23:00:32,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:00:32,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 23:00:32,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 23:00:32,414 INFO L87 Difference]: Start difference. First operand 1337 states and 1831 transitions. Second operand 5 states. [2020-07-21 23:00:33,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:00:33,400 INFO L93 Difference]: Finished difference Result 3129 states and 4435 transitions. [2020-07-21 23:00:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 23:00:33,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2020-07-21 23:00:33,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:00:33,419 INFO L225 Difference]: With dead ends: 3129 [2020-07-21 23:00:33,419 INFO L226 Difference]: Without dead ends: 1941 [2020-07-21 23:00:33,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 358 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 23:00:33,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2020-07-21 23:00:33,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1935. [2020-07-21 23:00:33,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1935 states. [2020-07-21 23:00:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2557 transitions. [2020-07-21 23:00:33,514 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2557 transitions. Word has length 184 [2020-07-21 23:00:33,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:00:33,516 INFO L479 AbstractCegarLoop]: Abstraction has 1935 states and 2557 transitions. [2020-07-21 23:00:33,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 23:00:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2557 transitions. [2020-07-21 23:00:33,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-21 23:00:33,522 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:00:33,522 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, 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] [2020-07-21 23:00:33,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:33,738 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:00:33,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:00:33,739 INFO L82 PathProgramCache]: Analyzing trace with hash -425157170, now seen corresponding path program 1 times [2020-07-21 23:00:33,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:00:33,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920307711] [2020-07-21 23:00:33,740 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:33,842 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:00:33,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:00:33,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:00:33,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:00:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:00:33,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:00:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:00:34,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920307711] [2020-07-21 23:00:34,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:00:34,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 23:00:34,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635067936] [2020-07-21 23:00:34,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 23:00:34,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:00:34,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 23:00:34,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 23:00:34,008 INFO L87 Difference]: Start difference. First operand 1935 states and 2557 transitions. Second operand 7 states. [2020-07-21 23:00:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:00:35,484 INFO L93 Difference]: Finished difference Result 4909 states and 6857 transitions. [2020-07-21 23:00:35,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 23:00:35,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-07-21 23:00:35,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:00:35,505 INFO L225 Difference]: With dead ends: 4909 [2020-07-21 23:00:35,505 INFO L226 Difference]: Without dead ends: 3123 [2020-07-21 23:00:35,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 381 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 23:00:35,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2020-07-21 23:00:35,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 2966. [2020-07-21 23:00:35,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2966 states. [2020-07-21 23:00:35,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 3931 transitions. [2020-07-21 23:00:35,609 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 3931 transitions. Word has length 193 [2020-07-21 23:00:35,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:00:35,609 INFO L479 AbstractCegarLoop]: Abstraction has 2966 states and 3931 transitions. [2020-07-21 23:00:35,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 23:00:35,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 3931 transitions. [2020-07-21 23:00:35,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-21 23:00:35,616 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:00:35,616 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, 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, 1, 1, 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 23:00:35,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:35,831 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:00:35,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:00:35,832 INFO L82 PathProgramCache]: Analyzing trace with hash -492115494, now seen corresponding path program 1 times [2020-07-21 23:00:35,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:00:35,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874908750] [2020-07-21 23:00:35,833 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:35,994 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:00:35,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:00:35,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:00:36,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:00:36,071 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:00:36,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:00:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:00:36,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874908750] [2020-07-21 23:00:36,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:00:36,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 23:00:36,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640051402] [2020-07-21 23:00:36,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 23:00:36,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:00:36,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 23:00:36,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 23:00:36,189 INFO L87 Difference]: Start difference. First operand 2966 states and 3931 transitions. Second operand 6 states. [2020-07-21 23:00:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:00:37,392 INFO L93 Difference]: Finished difference Result 6544 states and 8874 transitions. [2020-07-21 23:00:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 23:00:37,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 247 [2020-07-21 23:00:37,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:00:37,416 INFO L225 Difference]: With dead ends: 6544 [2020-07-21 23:00:37,417 INFO L226 Difference]: Without dead ends: 3727 [2020-07-21 23:00:37,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 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 23:00:37,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2020-07-21 23:00:37,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 2974. [2020-07-21 23:00:37,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2974 states. [2020-07-21 23:00:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 3622 transitions. [2020-07-21 23:00:37,527 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 3622 transitions. Word has length 247 [2020-07-21 23:00:37,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:00:37,527 INFO L479 AbstractCegarLoop]: Abstraction has 2974 states and 3622 transitions. [2020-07-21 23:00:37,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 23:00:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 3622 transitions. [2020-07-21 23:00:37,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-07-21 23:00:37,537 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:00:37,538 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:00:37,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:37,752 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:00:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:00:37,752 INFO L82 PathProgramCache]: Analyzing trace with hash 893276162, now seen corresponding path program 1 times [2020-07-21 23:00:37,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:00:37,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281602406] [2020-07-21 23:00:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:37,850 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 23:00:37,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:00:37,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-21 23:00:37,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:00:38,059 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 23:00:38,060 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 23:00:38,061 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 23:00:38,062 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 23:00:38,062 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 23:00:38,063 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 23:00:38,064 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 23:00:38,065 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 23:00:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 305 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 23:00:38,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:00:38,713 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 23:00:38,714 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 23:00:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 183 proven. 82 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 23:00:39,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281602406] [2020-07-21 23:00:39,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:00:39,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2020-07-21 23:00:39,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455480485] [2020-07-21 23:00:39,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-21 23:00:39,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:00:39,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-21 23:00:39,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-21 23:00:39,013 INFO L87 Difference]: Start difference. First operand 2974 states and 3622 transitions. Second operand 15 states. [2020-07-21 23:00:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:00:40,865 INFO L93 Difference]: Finished difference Result 6082 states and 7586 transitions. [2020-07-21 23:00:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 23:00:40,866 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 289 [2020-07-21 23:00:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:00:40,883 INFO L225 Difference]: With dead ends: 6082 [2020-07-21 23:00:40,883 INFO L226 Difference]: Without dead ends: 3139 [2020-07-21 23:00:40,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2020-07-21 23:00:40,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2020-07-21 23:00:40,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 2829. [2020-07-21 23:00:40,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2829 states. [2020-07-21 23:00:40,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 3448 transitions. [2020-07-21 23:00:40,981 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 3448 transitions. Word has length 289 [2020-07-21 23:00:40,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:00:40,981 INFO L479 AbstractCegarLoop]: Abstraction has 2829 states and 3448 transitions. [2020-07-21 23:00:40,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-21 23:00:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 3448 transitions. [2020-07-21 23:00:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-07-21 23:00:40,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:00:40,991 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:00:41,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:41,206 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:00:41,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:00:41,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1818758790, now seen corresponding path program 1 times [2020-07-21 23:00:41,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:00:41,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700289388] [2020-07-21 23:00:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:41,337 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 23:00:41,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:00:41,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 23:00:41,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:00:41,379 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:00:41,379 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:00:41,380 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:00:41,381 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:00:41,382 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:00:41,383 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:00:41,383 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:00:41,384 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:00:41,386 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:00:41,387 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:00:41,387 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:00:41,388 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:00:41,390 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 23:00:41,391 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:00:41,392 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:00:41,392 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:00:41,393 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:00:41,395 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 23:00:41,396 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:00:41,397 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:00:41,397 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:00:41,398 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:00:41,399 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:00:41,400 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 23:00:41,401 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:00:41,402 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:01:02,110 WARN L193 SmtUtils]: Spent 20.65 s on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2020-07-21 23:01:02,136 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 23:01:02,235 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-07-21 23:01:02,536 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 314 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 23:01:02,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:01:02,624 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 23:01:02,796 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:01:02,796 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,797 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,798 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,801 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,803 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,804 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,807 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,808 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,814 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,820 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,821 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,822 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,822 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,824 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,828 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:01:02,830 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,830 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,832 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:01:02,832 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,835 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,836 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,837 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,838 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,839 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,839 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,841 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 23:01:02,841 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:01:02,842 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,843 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,843 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,845 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,846 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,846 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,847 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,848 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,849 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,850 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,850 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,851 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,852 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,852 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,854 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:01:02,855 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,855 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,857 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:01:02,858 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,859 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,860 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,860 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,861 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,862 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,863 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,865 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:01:02,867 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,868 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,868 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,869 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,870 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,870 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,871 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,872 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,873 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,874 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,874 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,875 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,876 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,877 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,878 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:01:02,880 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,881 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,882 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:01:02,882 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,884 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,886 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,886 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,887 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,889 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,890 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,892 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:01:02,892 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,893 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,893 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 23:01:02,895 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 23:01:02,895 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,896 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,897 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,898 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:01:02,898 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 23:01:02,899 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 23:01:02,900 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,901 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,901 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,905 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:02,906 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 23:01:02,907 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 23:01:02,908 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:01:02,909 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:02,909 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:01:09,290 WARN L193 SmtUtils]: Spent 6.17 s on a formula simplification. DAG size of input: 109 DAG size of output: 20 [2020-07-21 23:01:09,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700289388] [2020-07-21 23:01:09,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:01:09,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 23:01:09,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84621729] [2020-07-21 23:01:09,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 23:01:09,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:09,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 23:01:09,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-07-21 23:01:09,294 INFO L87 Difference]: Start difference. First operand 2829 states and 3448 transitions. Second operand 9 states. [2020-07-21 23:01:32,153 WARN L193 SmtUtils]: Spent 19.96 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-07-21 23:01:33,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:01:33,081 INFO L93 Difference]: Finished difference Result 5970 states and 7315 transitions. [2020-07-21 23:01:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-21 23:01:33,082 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 325 [2020-07-21 23:01:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:01:33,097 INFO L225 Difference]: With dead ends: 5970 [2020-07-21 23:01:33,097 INFO L226 Difference]: Without dead ends: 3290 [2020-07-21 23:01:33,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 517 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 47.7s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2020-07-21 23:01:33,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2020-07-21 23:01:33,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3270. [2020-07-21 23:01:33,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3270 states. [2020-07-21 23:01:33,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 3932 transitions. [2020-07-21 23:01:33,182 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 3932 transitions. Word has length 325 [2020-07-21 23:01:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:01:33,183 INFO L479 AbstractCegarLoop]: Abstraction has 3270 states and 3932 transitions. [2020-07-21 23:01:33,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 23:01:33,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 3932 transitions. [2020-07-21 23:01:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-07-21 23:01:33,192 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:01:33,193 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:33,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:33,407 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:01:33,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:01:33,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1962894953, now seen corresponding path program 1 times [2020-07-21 23:01:33,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:01:33,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702063330] [2020-07-21 23:01:33,410 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:33,762 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:01:33,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:01:33,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:01:33,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:01:33,873 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-21 23:01:33,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:01:33,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702063330] [2020-07-21 23:01:33,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:01:33,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:01:33,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878974551] [2020-07-21 23:01:33,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:01:33,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:33,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:01:33,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:01:33,876 INFO L87 Difference]: Start difference. First operand 3270 states and 3932 transitions. Second operand 3 states. [2020-07-21 23:01:34,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:01:34,604 INFO L93 Difference]: Finished difference Result 7249 states and 8746 transitions. [2020-07-21 23:01:34,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:01:34,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 344 [2020-07-21 23:01:34,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:01:34,605 INFO L225 Difference]: With dead ends: 7249 [2020-07-21 23:01:34,606 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 23:01:34,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 342 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 23:01:34,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 23:01:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 23:01:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 23:01:34,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 23:01:34,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 344 [2020-07-21 23:01:34,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:01:34,619 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 23:01:34,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:01:34,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 23:01:34,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 23:01:34,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:34,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 23:01:35,327 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 170 [2020-07-21 23:01:35,490 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 170 [2020-07-21 23:01:36,471 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 48 [2020-07-21 23:01:37,057 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 37 [2020-07-21 23:01:37,547 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 37 [2020-07-21 23:01:37,552 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:01:37,553 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (or (<= 10 |old(~a19~0)|) (< ~a19~0 10)) (<= |old(~a10~0)| ~a10~0) (or (= 8 ~a19~0) (not (= 1 |old(~a10~0)|)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (not (= 8 |old(~a19~0)|))) (= ~a1~0 |old(~a1~0)|) (or (<= 9 ~a19~0) (< |old(~a19~0)| 9))) [2020-07-21 23:01:37,553 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:01:37,553 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 23:01:37,553 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,554 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,554 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,554 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,554 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,554 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,554 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 23:01:37,555 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 23:01:37,555 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 23:01:37,555 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 23:01:37,555 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 23:01:37,555 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 23:01:37,555 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 23:01:37,556 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 23:01:37,556 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 23:01:37,556 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 23:01:37,556 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 23:01:37,556 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,556 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,556 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 23:01:37,557 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 23:01:37,558 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 23:01:37,558 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 23:01:37,558 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 23:01:37,558 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 109) no Hoare annotation was computed. [2020-07-21 23:01:37,558 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 23:01:37,558 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,558 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,558 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,558 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 23:01:37,559 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 23:01:37,560 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 23:01:37,560 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,560 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,560 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,560 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,560 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,560 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 23:01:37,560 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 23:01:37,560 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 23:01:37,561 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 23:01:37,561 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 23:01:37,561 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 23:01:37,561 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 23:01:37,561 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 23:01:37,561 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 23:01:37,561 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 23:01:37,561 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 23:01:37,561 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 23:01:37,562 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 23:01:37,562 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,562 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,562 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,562 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,562 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,562 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 23:01:37,562 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 23:01:37,562 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,563 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 23:01:37,564 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 23:01:37,565 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,565 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,565 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,565 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,565 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 23:01:37,565 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,565 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,565 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 23:01:37,566 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 23:01:37,566 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 23:01:37,566 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 23:01:37,566 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 23:01:37,566 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 23:01:37,566 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 23:01:37,566 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 23:01:37,566 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,567 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 23:01:37,568 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse4 (= ~a19~0 |old(~a19~0)|)) (.cse5 (= ~a1~0 |old(~a1~0)|))) (let ((.cse0 (not (= 0 ~a12~0))) (.cse1 (not (= 14 ~a4~0))) (.cse2 (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) .cse4 .cse5)) (.cse3 (not (<= |old(~a10~0)| 2)))) (and (or (not (<= |old(~a10~0)| 0)) .cse0 .cse1 .cse2) (or (not (<= 23 |old(~a1~0)|)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) .cse4 .cse5) (not (<= 2 |old(~a10~0)|))) (or (not (<= |old(~a19~0)| 7)) .cse0 .cse1 .cse2) (or .cse0 (not (<= 9 |old(~a19~0)|)) .cse1 .cse2 .cse3)))) [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 23:01:37,569 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,570 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,571 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 23:01:37,572 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 23:01:37,573 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 23:01:37,573 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 23:01:37,573 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:01:37,573 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (= 23 ~a1~0)) [2020-07-21 23:01:37,573 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:01:37,573 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:01:37,573 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 23:01:37,573 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:01:37,573 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 2))) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (and (<= ~a19~0 9) (<= 2 ~a10~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= 23 ~a1~0)) (<= ~a19~0 7) (and (<= 9 ~a19~0) .cse0))) [2020-07-21 23:01:37,573 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 23:01:37,573 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 23:01:37,574 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 2))) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (and (<= ~a19~0 9) (<= 2 ~a10~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= 23 ~a1~0)) (<= ~a19~0 7) (and (<= 9 ~a19~0) .cse0))) [2020-07-21 23:01:37,574 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:01:37,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:01:37 BoogieIcfgContainer [2020-07-21 23:01:37,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 23:01:37,597 INFO L168 Benchmark]: Toolchain (without parser) took 80419.03 ms. Allocated memory was 137.9 MB in the beginning and 560.5 MB in the end (delta: 422.6 MB). Free memory was 101.5 MB in the beginning and 213.2 MB in the end (delta: -111.8 MB). Peak memory consumption was 413.8 MB. Max. memory is 7.1 GB. [2020-07-21 23:01:37,598 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 23:01:37,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.83 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 101.0 MB in the beginning and 171.3 MB in the end (delta: -70.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-07-21 23:01:37,599 INFO L168 Benchmark]: Boogie Preprocessor took 136.30 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 23:01:37,600 INFO L168 Benchmark]: RCFGBuilder took 1322.41 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 166.4 MB in the beginning and 182.4 MB in the end (delta: -16.0 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-21 23:01:37,601 INFO L168 Benchmark]: TraceAbstraction took 78193.64 ms. Allocated memory was 237.0 MB in the beginning and 560.5 MB in the end (delta: 323.5 MB). Free memory was 181.0 MB in the beginning and 213.2 MB in the end (delta: -32.3 MB). Peak memory consumption was 394.2 MB. Max. memory is 7.1 GB. [2020-07-21 23:01:37,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.83 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 101.0 MB in the beginning and 171.3 MB in the end (delta: -70.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.30 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1322.41 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 166.4 MB in the beginning and 182.4 MB in the end (delta: -16.0 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 78193.64 ms. Allocated memory was 237.0 MB in the beginning and 560.5 MB in the end (delta: 323.5 MB). Free memory was 181.0 MB in the beginning and 213.2 MB in the end (delta: -32.3 MB). Peak memory consumption was 394.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: 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 Derived loop invariant: (((((((((a10 <= 0 || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || !(0 == a12)) || !(14 == a4)) || (a19 <= 9 && 2 <= a10)) || !(\old(a19) <= 9)) || (a10 <= 2 && 23 <= a1)) || a19 <= 7) || (9 <= a19 && a10 <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 75.3s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 38.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 536 SDtfs, 3884 SDslu, 367 SDs, 0 SdLazy, 8653 SolverSat, 1601 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3271 GetRequests, 3168 SyntacticMatches, 14 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 53.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3270occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 1574 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 141 PreInvPairs, 201 NumberOfFragments, 346 HoareAnnotationTreeSize, 141 FomulaSimplifications, 15041 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8620 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 32.6s InterpolantComputationTime, 1968 NumberOfCodeBlocks, 1719 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2977 ConstructedInterpolants, 43 QuantifiedInterpolants, 3600679 SizeOfPredicates, 23 NumberOfNonLiveVariables, 3244 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 2194/2354 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...