/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 NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:05:35,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:05:35,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:05:35,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 14:05:35,956 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 [2020-07-20 14:05:35,969 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:05:35,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:05:35,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:05:35,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:05:35,971 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:05:35,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:05:35,971 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:05:35,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:05:35,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:05:35,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:05:35,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:05:35,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:05:35,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:05:35,973 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:05:35,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:05:35,973 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:05:35,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:05:35,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:05:35,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:05:35,974 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:05:35,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:05:35,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:05:35,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:05:35,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:05:35,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:05:35,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:05:35,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:05:35,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:05:35,976 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:05:35,976 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 -> NUM_FUNCTIONS 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 [2020-07-20 14:05:36,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:05:36,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:05:36,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:05:36,281 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:05:36,282 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:05:36,284 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-07-20 14:05:36,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15cccfb4e/b3abd37f698f43d38a1bfca575525bdb/FLAG45922925c [2020-07-20 14:05:36,931 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:05:36,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-07-20 14:05:36,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15cccfb4e/b3abd37f698f43d38a1bfca575525bdb/FLAG45922925c [2020-07-20 14:05:37,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15cccfb4e/b3abd37f698f43d38a1bfca575525bdb [2020-07-20 14:05:37,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:05:37,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:05:37,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:05:37,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:05:37,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:05:37,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:05:37" (1/1) ... [2020-07-20 14:05:37,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5877701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37, skipping insertion in model container [2020-07-20 14:05:37,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:05:37" (1/1) ... [2020-07-20 14:05:37,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:05:37,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:05:37,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:05:37,662 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:05:37,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:05:37,897 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:05:37,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37 WrapperNode [2020-07-20 14:05:37,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:05:37,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:05:37,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:05:37,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:05:37,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37" (1/1) ... [2020-07-20 14:05:37,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37" (1/1) ... [2020-07-20 14:05:37,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37" (1/1) ... [2020-07-20 14:05:37,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37" (1/1) ... [2020-07-20 14:05:37,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37" (1/1) ... [2020-07-20 14:05:37,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37" (1/1) ... [2020-07-20 14:05:37,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37" (1/1) ... [2020-07-20 14:05:37,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:05:37,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:05:37,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:05:37,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:05:38,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37" (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 [2020-07-20 14:05:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:05:38,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:05:38,084 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:05:38,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:05:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:05:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:05:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:05:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:05:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:05:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:05:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:05:39,310 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:05:39,310 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:05:39,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:05:39 BoogieIcfgContainer [2020-07-20 14:05:39,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:05:39,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:05:39,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:05:39,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:05:39,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:05:37" (1/3) ... [2020-07-20 14:05:39,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b91accb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:05:39, skipping insertion in model container [2020-07-20 14:05:39,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:05:37" (2/3) ... [2020-07-20 14:05:39,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b91accb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:05:39, skipping insertion in model container [2020-07-20 14:05:39,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:05:39" (3/3) ... [2020-07-20 14:05:39,325 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label42.c [2020-07-20 14:05:39,336 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:05:39,344 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:05:39,358 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:05:39,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:05:39,385 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:05:39,386 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:05:39,386 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:05:39,386 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:05:39,386 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:05:39,386 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:05:39,387 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:05:39,410 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 14:05:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-20 14:05:39,424 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:05:39,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:05:39,426 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:05:39,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:05:39,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1328102103, now seen corresponding path program 1 times [2020-07-20 14:05:39,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:05:39,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383413294] [2020-07-20 14:05:39,443 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 [2020-07-20 14:05:39,656 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:05:39,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:05:39,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:05:39,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:05:39,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:05:39,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:05:39,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383413294] [2020-07-20 14:05:39,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:05:39,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:05:39,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646012122] [2020-07-20 14:05:39,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:05:39,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:05:39,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:05:39,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:39,850 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 14:05:40,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:05:40,766 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-20 14:05:40,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:05:40,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-07-20 14:05:40,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:05:40,797 INFO L225 Difference]: With dead ends: 547 [2020-07-20 14:05:40,798 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 14:05:40,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:40,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 14:05:40,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 14:05:40,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 14:05:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 14:05:40,869 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 121 [2020-07-20 14:05:40,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:05:40,870 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 14:05:40,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:05:40,871 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 14:05:40,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-20 14:05:40,875 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:05:40,875 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:05:41,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:05:41,091 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:05:41,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:05:41,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1654189344, now seen corresponding path program 1 times [2020-07-20 14:05:41,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:05:41,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516183948] [2020-07-20 14:05:41,094 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 [2020-07-20 14:05:41,235 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:05:41,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:05:41,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:05:41,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:05:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:05:41,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:05:41,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516183948] [2020-07-20 14:05:41,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:05:41,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:05:41,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941636927] [2020-07-20 14:05:41,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:05:41,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:05:41,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:05:41,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:05:41,315 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-20 14:05:42,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:05:42,097 INFO L93 Difference]: Finished difference Result 840 states and 1222 transitions. [2020-07-20 14:05:42,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:05:42,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2020-07-20 14:05:42,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:05:42,107 INFO L225 Difference]: With dead ends: 840 [2020-07-20 14:05:42,107 INFO L226 Difference]: Without dead ends: 568 [2020-07-20 14:05:42,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:05:42,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2020-07-20 14:05:42,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2020-07-20 14:05:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-20 14:05:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-20 14:05:42,160 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 131 [2020-07-20 14:05:42,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:05:42,161 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-20 14:05:42,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:05:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-20 14:05:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 14:05:42,165 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:05:42,166 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:05:42,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:05:42,383 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:05:42,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:05:42,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1456847330, now seen corresponding path program 1 times [2020-07-20 14:05:42,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:05:42,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033131031] [2020-07-20 14:05:42,385 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 [2020-07-20 14:05:42,486 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:05:42,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:05:42,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:05:42,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:05:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:05:42,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:05:42,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033131031] [2020-07-20 14:05:42,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:05:42,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:05:42,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124803870] [2020-07-20 14:05:42,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:05:42,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:05:42,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:05:42,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:42,543 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-20 14:05:43,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:05:43,143 INFO L93 Difference]: Finished difference Result 1376 states and 1961 transitions. [2020-07-20 14:05:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:05:43,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-20 14:05:43,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:05:43,159 INFO L225 Difference]: With dead ends: 1376 [2020-07-20 14:05:43,160 INFO L226 Difference]: Without dead ends: 826 [2020-07-20 14:05:43,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-07-20 14:05:43,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2020-07-20 14:05:43,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2020-07-20 14:05:43,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1132 transitions. [2020-07-20 14:05:43,229 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1132 transitions. Word has length 132 [2020-07-20 14:05:43,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:05:43,230 INFO L479 AbstractCegarLoop]: Abstraction has 826 states and 1132 transitions. [2020-07-20 14:05:43,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:05:43,230 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1132 transitions. [2020-07-20 14:05:43,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-20 14:05:43,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:05:43,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:05:43,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:05:43,442 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:05:43,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:05:43,442 INFO L82 PathProgramCache]: Analyzing trace with hash 982548902, now seen corresponding path program 1 times [2020-07-20 14:05:43,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:05:43,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750702296] [2020-07-20 14:05:43,443 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 [2020-07-20 14:05:43,559 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:05:43,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:05:43,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:05:43,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:05:43,630 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:05:43,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:05:43,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750702296] [2020-07-20 14:05:43,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:05:43,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:05:43,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484837846] [2020-07-20 14:05:43,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:05:43,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:05:43,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:05:43,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:43,633 INFO L87 Difference]: Start difference. First operand 826 states and 1132 transitions. Second operand 3 states. [2020-07-20 14:05:44,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:05:44,243 INFO L93 Difference]: Finished difference Result 2053 states and 2871 transitions. [2020-07-20 14:05:44,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:05:44,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-07-20 14:05:44,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:05:44,252 INFO L225 Difference]: With dead ends: 2053 [2020-07-20 14:05:44,252 INFO L226 Difference]: Without dead ends: 1233 [2020-07-20 14:05:44,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:44,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2020-07-20 14:05:44,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1233. [2020-07-20 14:05:44,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1233 states. [2020-07-20 14:05:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1633 transitions. [2020-07-20 14:05:44,314 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1633 transitions. Word has length 136 [2020-07-20 14:05:44,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:05:44,315 INFO L479 AbstractCegarLoop]: Abstraction has 1233 states and 1633 transitions. [2020-07-20 14:05:44,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:05:44,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1633 transitions. [2020-07-20 14:05:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-20 14:05:44,320 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:05:44,320 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:05:44,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:05:44,535 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:05:44,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:05:44,536 INFO L82 PathProgramCache]: Analyzing trace with hash -979849841, now seen corresponding path program 1 times [2020-07-20 14:05:44,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:05:44,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125312470] [2020-07-20 14:05:44,537 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 [2020-07-20 14:05:44,646 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:05:44,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:05:44,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:05:44,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:05:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 14:05:44,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:05:44,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125312470] [2020-07-20 14:05:44,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:05:44,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:05:44,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034591860] [2020-07-20 14:05:44,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:05:44,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:05:44,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:05:44,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:44,689 INFO L87 Difference]: Start difference. First operand 1233 states and 1633 transitions. Second operand 3 states. [2020-07-20 14:05:45,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:05:45,255 INFO L93 Difference]: Finished difference Result 3274 states and 4424 transitions. [2020-07-20 14:05:45,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:05:45,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-07-20 14:05:45,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:05:45,274 INFO L225 Difference]: With dead ends: 3274 [2020-07-20 14:05:45,274 INFO L226 Difference]: Without dead ends: 2047 [2020-07-20 14:05:45,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:45,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2020-07-20 14:05:45,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2047. [2020-07-20 14:05:45,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2047 states. [2020-07-20 14:05:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 2688 transitions. [2020-07-20 14:05:45,373 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 2688 transitions. Word has length 155 [2020-07-20 14:05:45,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:05:45,420 INFO L479 AbstractCegarLoop]: Abstraction has 2047 states and 2688 transitions. [2020-07-20 14:05:45,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:05:45,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 2688 transitions. [2020-07-20 14:05:45,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-07-20 14:05:45,430 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:05:45,431 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 14:05:45,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:05:45,645 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:05:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:05:45,646 INFO L82 PathProgramCache]: Analyzing trace with hash -432054101, now seen corresponding path program 1 times [2020-07-20 14:05:45,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:05:45,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614708687] [2020-07-20 14:05:45,646 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 [2020-07-20 14:05:45,772 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:05:45,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:05:45,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:05:45,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:05:45,822 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 14:05:45,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:05:45,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614708687] [2020-07-20 14:05:45,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:05:45,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:05:45,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874014095] [2020-07-20 14:05:45,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:05:45,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:05:45,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:05:45,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:45,825 INFO L87 Difference]: Start difference. First operand 2047 states and 2688 transitions. Second operand 3 states. [2020-07-20 14:05:46,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:05:46,357 INFO L93 Difference]: Finished difference Result 4086 states and 5391 transitions. [2020-07-20 14:05:46,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:05:46,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-07-20 14:05:46,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:05:46,359 INFO L225 Difference]: With dead ends: 4086 [2020-07-20 14:05:46,359 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:05:46,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:05:46,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:05:46,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:05:46,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:05:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:05:46,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2020-07-20 14:05:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:05:46,368 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:05:46,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:05:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:05:46,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:05:46,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:05:46,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:05:47,070 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-07-20 14:05:47,137 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:05:47,137 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (<= ~a16~0 |old(~a16~0)|) [2020-07-20 14:05:47,137 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:05:47,137 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 14:05:47,138 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 14:05:47,138 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,138 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,138 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,138 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,138 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,138 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,139 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 14:05:47,139 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 14:05:47,139 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 14:05:47,139 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 14:05:47,139 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 14:05:47,139 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 14:05:47,139 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 14:05:47,139 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 14:05:47,140 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 14:05:47,140 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 14:05:47,141 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,141 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,141 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,141 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,142 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,142 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,142 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 14:05:47,142 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 14:05:47,142 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 14:05:47,142 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 14:05:47,143 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 14:05:47,143 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 14:05:47,143 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 14:05:47,143 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 14:05:47,143 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 14:05:47,143 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 14:05:47,143 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 14:05:47,144 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 521) no Hoare annotation was computed. [2020-07-20 14:05:47,144 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 14:05:47,144 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 14:05:47,144 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 14:05:47,144 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 14:05:47,144 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,144 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,144 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,145 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,145 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,145 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 14:05:47,146 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 14:05:47,146 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 14:05:47,146 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 14:05:47,146 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 14:05:47,146 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 14:05:47,146 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 14:05:47,146 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 14:05:47,146 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 14:05:47,147 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,147 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,147 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,148 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,148 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,148 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 14:05:47,150 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 14:05:47,150 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 14:05:47,150 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 14:05:47,150 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 14:05:47,150 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 14:05:47,150 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 14:05:47,151 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 14:05:47,151 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 14:05:47,151 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 14:05:47,151 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 14:05:47,151 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 14:05:47,151 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 14:05:47,151 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,152 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,152 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,152 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,152 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,159 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 14:05:47,159 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 14:05:47,159 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 14:05:47,160 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 14:05:47,160 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 14:05:47,160 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 14:05:47,160 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 14:05:47,160 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 14:05:47,161 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 14:05:47,161 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,161 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,161 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,161 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,162 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,162 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,162 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 14:05:47,166 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,166 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 14:05:47,166 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 14:05:47,166 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 14:05:47,166 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 14:05:47,166 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 14:05:47,166 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 14:05:47,167 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 14:05:47,167 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 14:05:47,167 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 14:05:47,167 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 14:05:47,167 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 14:05:47,167 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 14:05:47,167 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 14:05:47,168 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,168 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,168 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,168 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,168 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,170 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 14:05:47,170 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 14:05:47,170 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 14:05:47,172 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 14:05:47,172 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 14:05:47,173 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 14:05:47,173 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 14:05:47,173 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 14:05:47,173 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,173 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,173 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,173 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,174 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,174 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 14:05:47,174 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 14:05:47,174 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 14:05:47,174 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 14:05:47,176 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 14:05:47,176 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 14:05:47,176 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 14:05:47,176 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 14:05:47,176 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 14:05:47,177 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 14:05:47,177 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 |old(~a16~0)|)) (.cse2 (<= ~a21~0 0)) (.cse4 (not (<= |old(~a21~0)| 0))) (.cse6 (not (<= 15 |old(~a8~0)|))) (.cse3 (<= ~a16~0 5)) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse0 (not (<= |old(~a17~0)| 0)))) (and (or (<= ~a17~0 0) .cse0) (or (and .cse1 (<= 6 ~a16~0)) (not (<= 6 |old(~a16~0)|))) (or .cse1 (not (<= |old(~a16~0)| 4))) (or (and .cse2 .cse3) .cse4 .cse5) (or .cse2 .cse4 .cse0) (or .cse6 .cse3 .cse5) (or .cse6 (<= 15 ~a8~0)) (or .cse3 .cse5 .cse0))) [2020-07-20 14:05:47,177 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 14:05:47,177 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,178 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,178 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,178 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,178 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 14:05:47,178 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,178 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,179 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 14:05:47,179 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 14:05:47,179 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 14:05:47,179 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 14:05:47,179 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 14:05:47,180 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 14:05:47,180 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 14:05:47,180 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 14:05:47,180 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 14:05:47,180 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 14:05:47,181 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 14:05:47,181 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 14:05:47,181 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,181 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,181 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,181 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,181 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,181 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 14:05:47,182 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,182 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 14:05:47,182 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 14:05:47,182 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 14:05:47,182 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 14:05:47,182 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 14:05:47,182 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 14:05:47,182 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 14:05:47,183 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 14:05:47,183 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 14:05:47,183 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 14:05:47,183 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 14:05:47,183 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 14:05:47,183 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 14:05:47,183 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 14:05:47,183 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,184 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,184 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,184 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,184 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,184 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:05:47,184 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 14:05:47,184 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 14:05:47,184 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 14:05:47,184 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 14:05:47,185 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 14:05:47,185 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 14:05:47,185 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 14:05:47,185 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 14:05:47,185 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 14:05:47,185 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 14:05:47,185 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:05:47,186 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0)) [2020-07-20 14:05:47,186 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:05:47,186 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:05:47,186 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (and (<= ~a16~0 |old(~a16~0)|) (<= 15 ~a8~0))) [2020-07-20 14:05:47,186 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 14:05:47,186 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (<= ~a21~0 0) (<= ~a17~0 0) (<= 6 ~a16~0) (not (<= |old(~a16~0)| 5)) (<= 15 ~a8~0) (<= ~a16~0 4)) [2020-07-20 14:05:47,186 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 14:05:47,186 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 14:05:47,187 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (<= ~a21~0 0) (<= ~a17~0 0) (<= 6 ~a16~0) (not (<= |old(~a16~0)| 5)) (<= 15 ~a8~0) (<= ~a16~0 4)) [2020-07-20 14:05:47,187 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 14:05:47,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:05:47 BoogieIcfgContainer [2020-07-20 14:05:47,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:05:47,220 INFO L168 Benchmark]: Toolchain (without parser) took 10007.87 ms. Allocated memory was 146.3 MB in the beginning and 363.9 MB in the end (delta: 217.6 MB). Free memory was 100.8 MB in the beginning and 239.4 MB in the end (delta: -138.5 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:05:47,223 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 146.3 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 14:05:47,224 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.50 ms. Allocated memory was 146.3 MB in the beginning and 206.6 MB in the end (delta: 60.3 MB). Free memory was 100.4 MB in the beginning and 173.1 MB in the end (delta: -72.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:05:47,225 INFO L168 Benchmark]: Boogie Preprocessor took 99.59 ms. Allocated memory is still 206.6 MB. Free memory was 173.1 MB in the beginning and 167.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:05:47,233 INFO L168 Benchmark]: RCFGBuilder took 1318.18 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 167.6 MB in the beginning and 181.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:05:47,234 INFO L168 Benchmark]: TraceAbstraction took 7900.14 ms. Allocated memory was 240.1 MB in the beginning and 363.9 MB in the end (delta: 123.7 MB). Free memory was 180.2 MB in the beginning and 239.4 MB in the end (delta: -59.2 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:05:47,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 146.3 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.50 ms. Allocated memory was 146.3 MB in the beginning and 206.6 MB in the end (delta: 60.3 MB). Free memory was 100.4 MB in the beginning and 173.1 MB in the end (delta: -72.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.59 ms. Allocated memory is still 206.6 MB. Free memory was 173.1 MB in the beginning and 167.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1318.18 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 167.6 MB in the beginning and 181.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7900.14 ms. Allocated memory was 240.1 MB in the beginning and 363.9 MB in the end (delta: 123.7 MB). Free memory was 180.2 MB in the beginning and 239.4 MB in the end (delta: -59.2 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 521]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((!(15 <= \old(a8)) || a21 <= 0) || a17 <= 0) || 6 <= a16) || !(\old(a16) <= 5)) || 15 <= a8) || a16 <= 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.2s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 950 SDtfs, 598 SDslu, 102 SDs, 0 SdLazy, 2377 SolverSat, 462 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 880 GetRequests, 869 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2047occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 58 PreInvPairs, 88 NumberOfFragments, 164 HoareAnnotationTreeSize, 58 FomulaSimplifications, 388 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 295 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 883 NumberOfCodeBlocks, 883 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 877 ConstructedInterpolants, 0 QuantifiedInterpolants, 311669 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2334 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 162/162 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...