/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/Problem02_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:08:35,865 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 14:08:35,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:08:35,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:08:35,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:08:35,922 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 14:08:35,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:08:35,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:08:35,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:08:35,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:08:35,947 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:08:35,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:08:35,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:08:35,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:08:35,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:08:35,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:08:35,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:08:35,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:08:35,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:08:35,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:08:35,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:08:35,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:08:35,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:08:35,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:08:35,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:08:35,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:08:35,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:08:35,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:08:35,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:08:35,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:08:35,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:08:35,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:08:35,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:35,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:08:35,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:08:35,952 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 14:08:36,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:08:36,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:08:36,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:08:36,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:08:36,373 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:08:36,374 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-20 14:08:36,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52ac0f23e/5e7ea65765624a019d4b3f581b4aca99/FLAG9766612a2 [2020-07-20 14:08:37,153 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:08:37,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-20 14:08:37,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52ac0f23e/5e7ea65765624a019d4b3f581b4aca99/FLAG9766612a2 [2020-07-20 14:08:37,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52ac0f23e/5e7ea65765624a019d4b3f581b4aca99 [2020-07-20 14:08:37,379 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:08:37,382 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:08:37,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:08:37,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:08:37,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:08:37,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:08:37" (1/1) ... [2020-07-20 14:08:37,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba77080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:37, skipping insertion in model container [2020-07-20 14:08:37,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:08:37" (1/1) ... [2020-07-20 14:08:37,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:08:37,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:08:37,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:08:37,930 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:08:38,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:08:38,181 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:08:38,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38 WrapperNode [2020-07-20 14:08:38,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:08:38,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:08:38,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:08:38,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:08:38,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38" (1/1) ... [2020-07-20 14:08:38,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38" (1/1) ... [2020-07-20 14:08:38,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38" (1/1) ... [2020-07-20 14:08:38,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38" (1/1) ... [2020-07-20 14:08:38,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38" (1/1) ... [2020-07-20 14:08:38,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38" (1/1) ... [2020-07-20 14:08:38,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38" (1/1) ... [2020-07-20 14:08:38,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:08:38,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:08:38,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:08:38,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:08:38,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38" (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 14:08:38,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:08:38,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:08:38,405 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:08:38,405 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:08:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:08:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:08:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:08:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:08:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:08:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:08:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:08:39,868 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:08:39,869 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:08:39,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:08:39 BoogieIcfgContainer [2020-07-20 14:08:39,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:08:39,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:08:39,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:08:39,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:08:39,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:08:37" (1/3) ... [2020-07-20 14:08:39,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30795e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:08:39, skipping insertion in model container [2020-07-20 14:08:39,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:38" (2/3) ... [2020-07-20 14:08:39,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30795e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:08:39, skipping insertion in model container [2020-07-20 14:08:39,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:08:39" (3/3) ... [2020-07-20 14:08:39,887 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label56.c [2020-07-20 14:08:39,900 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:08:39,912 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:08:39,932 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:08:39,966 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:08:39,967 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:08:39,967 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:08:39,967 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:08:39,967 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:08:39,968 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:08:39,968 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:08:39,968 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:08:39,997 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 14:08:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 14:08:40,014 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:40,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:40,016 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:40,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:40,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1821084561, now seen corresponding path program 1 times [2020-07-20 14:08:40,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:40,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104669322] [2020-07-20 14:08:40,037 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 14:08:40,290 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:40,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:40,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:08:40,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:40,501 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 14:08:40,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:40,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104669322] [2020-07-20 14:08:40,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:40,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:08:40,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431494005] [2020-07-20 14:08:40,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:08:40,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:40,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:08:40,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:40,543 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 14:08:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:41,701 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 14:08:41,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:08:41,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-20 14:08:41,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:41,742 INFO L225 Difference]: With dead ends: 619 [2020-07-20 14:08:41,743 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 14:08:41,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 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 14:08:41,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 14:08:41,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 14:08:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 14:08:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 14:08:41,901 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 129 [2020-07-20 14:08:41,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:41,903 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 14:08:41,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:08:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 14:08:41,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-20 14:08:41,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:41,909 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:42,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:42,124 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:42,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:42,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1159828288, now seen corresponding path program 1 times [2020-07-20 14:08:42,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:42,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273825600] [2020-07-20 14:08:42,126 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 14:08:42,240 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:42,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:42,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 14:08:42,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 14:08:42,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:42,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 14:08:42,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273825600] [2020-07-20 14:08:42,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 14:08:42,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 14:08:42,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659758711] [2020-07-20 14:08:42,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 14:08:42,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:42,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 14:08:42,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:08:42,541 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-20 14:08:43,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:43,300 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-20 14:08:43,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 14:08:43,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2020-07-20 14:08:43,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:43,318 INFO L225 Difference]: With dead ends: 941 [2020-07-20 14:08:43,319 INFO L226 Difference]: Without dead ends: 628 [2020-07-20 14:08:43,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:08:43,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-20 14:08:43,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-20 14:08:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-20 14:08:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-20 14:08:43,412 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 138 [2020-07-20 14:08:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:43,413 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-20 14:08:43,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 14:08:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-20 14:08:43,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 14:08:43,418 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:43,418 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:43,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:43,634 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:43,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:43,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1202576379, now seen corresponding path program 1 times [2020-07-20 14:08:43,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:43,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480187766] [2020-07-20 14:08:43,636 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 14:08:43,760 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:43,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:43,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:43,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:43,817 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:08:43,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:43,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480187766] [2020-07-20 14:08:43,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:43,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:08:43,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478239735] [2020-07-20 14:08:43,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:08:43,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:43,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:08:43,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:43,821 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-20 14:08:44,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:44,514 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-20 14:08:44,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:08:44,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-20 14:08:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:44,529 INFO L225 Difference]: With dead ends: 1543 [2020-07-20 14:08:44,529 INFO L226 Difference]: Without dead ends: 921 [2020-07-20 14:08:44,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 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 14:08:44,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-20 14:08:44,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-20 14:08:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-20 14:08:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-20 14:08:44,572 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 146 [2020-07-20 14:08:44,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:44,573 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-20 14:08:44,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:08:44,574 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-20 14:08:44,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 14:08:44,579 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:44,579 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:44,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:44,795 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:44,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:44,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1262915279, now seen corresponding path program 1 times [2020-07-20 14:08:44,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:44,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311275535] [2020-07-20 14:08:44,798 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 14:08:44,954 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:44,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:44,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 14:08:44,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 14:08:45,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:45,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311275535] [2020-07-20 14:08:45,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:45,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:08:45,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279459102] [2020-07-20 14:08:45,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:08:45,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:45,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:08:45,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:08:45,030 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 5 states. [2020-07-20 14:08:45,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:45,983 INFO L93 Difference]: Finished difference Result 2770 states and 3826 transitions. [2020-07-20 14:08:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:08:45,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-07-20 14:08:45,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:46,003 INFO L225 Difference]: With dead ends: 2770 [2020-07-20 14:08:46,003 INFO L226 Difference]: Without dead ends: 1857 [2020-07-20 14:08:46,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:46,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2020-07-20 14:08:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1829. [2020-07-20 14:08:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1829 states. [2020-07-20 14:08:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2367 transitions. [2020-07-20 14:08:46,129 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2367 transitions. Word has length 152 [2020-07-20 14:08:46,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:46,131 INFO L479 AbstractCegarLoop]: Abstraction has 1829 states and 2367 transitions. [2020-07-20 14:08:46,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:08:46,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2367 transitions. [2020-07-20 14:08:46,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-20 14:08:46,144 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:46,144 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:46,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:46,359 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:46,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:46,362 INFO L82 PathProgramCache]: Analyzing trace with hash -989124760, now seen corresponding path program 1 times [2020-07-20 14:08:46,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:46,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467941334] [2020-07-20 14:08:46,363 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 14:08:46,553 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:46,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:46,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:46,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:46,603 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:08:46,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:08:46,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1467941334] [2020-07-20 14:08:46,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:46,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:08:46,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163620168] [2020-07-20 14:08:46,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:08:46,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:46,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:08:46,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:46,700 INFO L87 Difference]: Start difference. First operand 1829 states and 2367 transitions. Second operand 6 states. [2020-07-20 14:08:47,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:47,817 INFO L93 Difference]: Finished difference Result 4140 states and 5483 transitions. [2020-07-20 14:08:47,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:08:47,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-07-20 14:08:47,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:47,838 INFO L225 Difference]: With dead ends: 4140 [2020-07-20 14:08:47,839 INFO L226 Difference]: Without dead ends: 2317 [2020-07-20 14:08:47,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2020-07-20 14:08:47,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2305. [2020-07-20 14:08:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-07-20 14:08:47,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3033 transitions. [2020-07-20 14:08:47,975 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3033 transitions. Word has length 160 [2020-07-20 14:08:47,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:47,975 INFO L479 AbstractCegarLoop]: Abstraction has 2305 states and 3033 transitions. [2020-07-20 14:08:47,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:08:47,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3033 transitions. [2020-07-20 14:08:47,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 14:08:47,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:47,993 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:48,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:48,208 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:48,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:48,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1429632528, now seen corresponding path program 1 times [2020-07-20 14:08:48,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:48,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330075110] [2020-07-20 14:08:48,209 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 14:08:48,332 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:48,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:48,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:48,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:08:48,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:48,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330075110] [2020-07-20 14:08:48,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:48,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:08:48,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499298352] [2020-07-20 14:08:48,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:08:48,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:48,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:08:48,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:48,387 INFO L87 Difference]: Start difference. First operand 2305 states and 3033 transitions. Second operand 3 states. [2020-07-20 14:08:49,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:49,085 INFO L93 Difference]: Finished difference Result 5910 states and 7904 transitions. [2020-07-20 14:08:49,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:08:49,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-07-20 14:08:49,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:49,102 INFO L225 Difference]: With dead ends: 5910 [2020-07-20 14:08:49,103 INFO L226 Difference]: Without dead ends: 2285 [2020-07-20 14:08:49,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 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 14:08:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2020-07-20 14:08:49,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2285. [2020-07-20 14:08:49,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2285 states. [2020-07-20 14:08:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 2909 transitions. [2020-07-20 14:08:49,191 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 2909 transitions. Word has length 164 [2020-07-20 14:08:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:49,191 INFO L479 AbstractCegarLoop]: Abstraction has 2285 states and 2909 transitions. [2020-07-20 14:08:49,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:08:49,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 2909 transitions. [2020-07-20 14:08:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 14:08:49,201 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:49,201 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:49,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:49,415 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:49,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:49,416 INFO L82 PathProgramCache]: Analyzing trace with hash 637450697, now seen corresponding path program 1 times [2020-07-20 14:08:49,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:49,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595162212] [2020-07-20 14:08:49,418 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 [2020-07-20 14:08:49,578 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:49,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:49,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:49,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:08:49,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:08:49,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595162212] [2020-07-20 14:08:49,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:49,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:08:49,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074361814] [2020-07-20 14:08:49,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:08:49,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:49,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:08:49,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:49,728 INFO L87 Difference]: Start difference. First operand 2285 states and 2909 transitions. Second operand 6 states. [2020-07-20 14:08:50,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:50,854 INFO L93 Difference]: Finished difference Result 5192 states and 6717 transitions. [2020-07-20 14:08:50,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:08:50,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-20 14:08:50,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:50,873 INFO L225 Difference]: With dead ends: 5192 [2020-07-20 14:08:50,874 INFO L226 Difference]: Without dead ends: 2913 [2020-07-20 14:08:50,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:50,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2020-07-20 14:08:51,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2899. [2020-07-20 14:08:51,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2899 states. [2020-07-20 14:08:51,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 3504 transitions. [2020-07-20 14:08:51,016 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 3504 transitions. Word has length 182 [2020-07-20 14:08:51,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:51,016 INFO L479 AbstractCegarLoop]: Abstraction has 2899 states and 3504 transitions. [2020-07-20 14:08:51,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:08:51,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 3504 transitions. [2020-07-20 14:08:51,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-20 14:08:51,028 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:51,028 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:51,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:51,242 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:51,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1052030863, now seen corresponding path program 1 times [2020-07-20 14:08:51,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:51,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166340009] [2020-07-20 14:08:51,243 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 [2020-07-20 14:08:51,395 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:51,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:51,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:51,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 14:08:51,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 14:08:51,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166340009] [2020-07-20 14:08:51,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:51,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:51,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098212626] [2020-07-20 14:08:51,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:51,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:51,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:51,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:51,567 INFO L87 Difference]: Start difference. First operand 2899 states and 3504 transitions. Second operand 7 states. [2020-07-20 14:08:52,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:52,641 INFO L93 Difference]: Finished difference Result 7468 states and 9061 transitions. [2020-07-20 14:08:52,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:08:52,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-07-20 14:08:52,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:52,663 INFO L225 Difference]: With dead ends: 7468 [2020-07-20 14:08:52,666 INFO L226 Difference]: Without dead ends: 4574 [2020-07-20 14:08:52,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 449 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:52,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2020-07-20 14:08:52,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 4541. [2020-07-20 14:08:52,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4541 states. [2020-07-20 14:08:52,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 5450 transitions. [2020-07-20 14:08:52,798 INFO L78 Accepts]: Start accepts. Automaton has 4541 states and 5450 transitions. Word has length 227 [2020-07-20 14:08:52,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:52,798 INFO L479 AbstractCegarLoop]: Abstraction has 4541 states and 5450 transitions. [2020-07-20 14:08:52,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:52,799 INFO L276 IsEmpty]: Start isEmpty. Operand 4541 states and 5450 transitions. [2020-07-20 14:08:52,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-20 14:08:52,814 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:52,814 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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] [2020-07-20 14:08:53,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:53,030 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:53,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:53,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1880332291, now seen corresponding path program 1 times [2020-07-20 14:08:53,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:53,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527602745] [2020-07-20 14:08:53,032 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 [2020-07-20 14:08:53,192 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:53,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:53,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:53,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 14:08:53,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 14:08:53,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527602745] [2020-07-20 14:08:53,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:53,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:08:53,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21260107] [2020-07-20 14:08:53,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:08:53,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:53,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:08:53,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:53,354 INFO L87 Difference]: Start difference. First operand 4541 states and 5450 transitions. Second operand 6 states. [2020-07-20 14:08:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:53,931 INFO L93 Difference]: Finished difference Result 8756 states and 10503 transitions. [2020-07-20 14:08:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:08:53,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2020-07-20 14:08:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:53,951 INFO L225 Difference]: With dead ends: 8756 [2020-07-20 14:08:53,952 INFO L226 Difference]: Without dead ends: 4221 [2020-07-20 14:08:53,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 452 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:53,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4221 states. [2020-07-20 14:08:54,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4221 to 4217. [2020-07-20 14:08:54,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4217 states. [2020-07-20 14:08:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 4895 transitions. [2020-07-20 14:08:54,062 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 4895 transitions. Word has length 229 [2020-07-20 14:08:54,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:54,062 INFO L479 AbstractCegarLoop]: Abstraction has 4217 states and 4895 transitions. [2020-07-20 14:08:54,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:08:54,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 4895 transitions. [2020-07-20 14:08:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-20 14:08:54,077 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:54,077 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:54,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:54,292 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:54,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:54,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1522903008, now seen corresponding path program 1 times [2020-07-20 14:08:54,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:54,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408095146] [2020-07-20 14:08:54,294 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 [2020-07-20 14:08:54,455 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:54,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:54,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:54,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 14:08:54,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-20 14:08:54,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408095146] [2020-07-20 14:08:54,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:54,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:54,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965689854] [2020-07-20 14:08:54,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:54,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:54,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:54,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:54,679 INFO L87 Difference]: Start difference. First operand 4217 states and 4895 transitions. Second operand 7 states. [2020-07-20 14:08:56,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:56,060 INFO L93 Difference]: Finished difference Result 9866 states and 11437 transitions. [2020-07-20 14:08:56,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:08:56,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-07-20 14:08:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:56,089 INFO L225 Difference]: With dead ends: 9866 [2020-07-20 14:08:56,089 INFO L226 Difference]: Without dead ends: 5799 [2020-07-20 14:08:56,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 521 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:56,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2020-07-20 14:08:56,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 5505. [2020-07-20 14:08:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5505 states. [2020-07-20 14:08:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5505 states to 5505 states and 6167 transitions. [2020-07-20 14:08:56,284 INFO L78 Accepts]: Start accepts. Automaton has 5505 states and 6167 transitions. Word has length 263 [2020-07-20 14:08:56,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:56,284 INFO L479 AbstractCegarLoop]: Abstraction has 5505 states and 6167 transitions. [2020-07-20 14:08:56,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:56,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5505 states and 6167 transitions. [2020-07-20 14:08:56,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-07-20 14:08:56,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:56,313 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:56,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:56,527 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:56,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:56,527 INFO L82 PathProgramCache]: Analyzing trace with hash -834923932, now seen corresponding path program 1 times [2020-07-20 14:08:56,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:56,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863642685] [2020-07-20 14:08:56,528 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:56,709 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:56,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:56,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:08:56,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-07-20 14:08:56,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:57,039 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-07-20 14:08:57,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863642685] [2020-07-20 14:08:57,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:57,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:57,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792025607] [2020-07-20 14:08:57,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:57,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:57,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:57,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:57,042 INFO L87 Difference]: Start difference. First operand 5505 states and 6167 transitions. Second operand 7 states. [2020-07-20 14:08:58,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:58,310 INFO L93 Difference]: Finished difference Result 10254 states and 11467 transitions. [2020-07-20 14:08:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:08:58,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-07-20 14:08:58,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:58,316 INFO L225 Difference]: With dead ends: 10254 [2020-07-20 14:08:58,317 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:08:58,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:58,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:08:58,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:08:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:08:58,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:08:58,335 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 295 [2020-07-20 14:08:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:58,335 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:08:58,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:08:58,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:08:58,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:58,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:09:00,481 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 155 DAG size of output: 75 [2020-07-20 14:09:01,086 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-07-20 14:09:01,661 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-07-20 14:09:01,665 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:09:01,666 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 14:09:01,666 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:09:01,666 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,666 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,667 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,668 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,668 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,668 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 14:09:01,668 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 14:09:01,668 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 14:09:01,668 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 14:09:01,668 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 14:09:01,669 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 14:09:01,669 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 14:09:01,669 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 14:09:01,669 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 14:09:01,671 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 14:09:01,672 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:09:01,672 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:09:01,672 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 14:09:01,673 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,673 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,673 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,673 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,673 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 14:09:01,673 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,673 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 14:09:01,673 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 14:09:01,674 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 14:09:01,674 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 14:09:01,674 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 14:09:01,675 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 14:09:01,676 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 14:09:01,676 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:09:01,676 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:09:01,676 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 14:09:01,676 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 14:09:01,676 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 14:09:01,677 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:09:01,677 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:09:01,678 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 14:09:01,678 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,680 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,680 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,680 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,680 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,681 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 541) no Hoare annotation was computed. [2020-07-20 14:09:01,681 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:09:01,681 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 14:09:01,681 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:09:01,681 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 14:09:01,681 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 14:09:01,682 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 14:09:01,682 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 14:09:01,683 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 14:09:01,683 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 14:09:01,683 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 14:09:01,683 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 14:09:01,683 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,683 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,683 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,683 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,684 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,684 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 14:09:01,684 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 14:09:01,684 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 14:09:01,684 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 14:09:01,684 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 14:09:01,684 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 14:09:01,684 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 14:09:01,684 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 14:09:01,685 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 14:09:01,685 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 14:09:01,685 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 14:09:01,686 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 14:09:01,688 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 14:09:01,688 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,688 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,688 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,688 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,688 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,688 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 14:09:01,689 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 14:09:01,689 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 14:09:01,689 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 14:09:01,689 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 14:09:01,689 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 14:09:01,689 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 14:09:01,689 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 14:09:01,689 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 14:09:01,690 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 14:09:01,690 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 14:09:01,690 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 14:09:01,690 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 14:09:01,690 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:09:01,690 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 14:09:01,690 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:09:01,690 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,691 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,691 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,691 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,691 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 14:09:01,691 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,691 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:09:01,691 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,691 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:09:01,693 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:09:01,693 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:09:01,694 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,694 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,694 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 14:09:01,694 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 14:09:01,694 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 14:09:01,694 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 14:09:01,694 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 14:09:01,694 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 14:09:01,695 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 14:09:01,695 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 14:09:01,695 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 14:09:01,695 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 14:09:01,695 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 14:09:01,695 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,695 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,695 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,696 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,696 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,696 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,696 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 14:09:01,696 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 14:09:01,696 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 14:09:01,696 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 14:09:01,696 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 14:09:01,696 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 14:09:01,697 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 14:09:01,697 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 14:09:01,697 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 14:09:01,697 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 14:09:01,697 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 14:09:01,697 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,697 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,697 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,698 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,698 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,698 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,698 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 14:09:01,698 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 14:09:01,698 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 14:09:01,698 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 14:09:01,698 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 14:09:01,698 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 14:09:01,699 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 14:09:01,699 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 14:09:01,699 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 14:09:01,699 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 14:09:01,699 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 14:09:01,699 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 14:09:01,699 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 14:09:01,699 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 14:09:01,699 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,700 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,700 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,700 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse10 (<= ~a17~0 |old(~a17~0)|)) (.cse12 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (= ~a19~0 |old(~a19~0)|)) (.cse14 (<= |old(~a28~0)| ~a28~0)) (.cse22 (= 1 ~a25~0)) (.cse11 (<= ~a11~0 0))) (let ((.cse18 (<= ~a28~0 10)) (.cse19 (<= ~a17~0 7)) (.cse17 (or .cse11 (< 0 |old(~a11~0)|))) (.cse15 (= ~a25~0 |old(~a25~0)|)) (.cse1 (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse22)) (.cse8 (not (<= |old(~a28~0)| 7))) (.cse16 (not (<= |old(~a17~0)| 7))) (.cse20 (not (<= |old(~a28~0)| 9))) (.cse9 (not (<= |old(~a25~0)| 0))) (.cse4 (not (<= |old(~a19~0)| 0))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse7 (not (= 1 |old(~a19~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse2 (not (<= 9 |old(~a28~0)|))) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse21 (and .cse10 .cse12 .cse13 .cse14 .cse22)) (.cse5 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse9 (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) .cse5 .cse6) (or .cse0 .cse16 (and .cse17 .cse18 .cse19 .cse13)) (or .cse12 .cse20 .cse16) (or .cse7 .cse0 .cse2 .cse9 (and .cse10 .cse18 .cse13 .cse14 .cse15) .cse5) (or .cse20 .cse9 (and .cse10 .cse12 .cse13 .cse14 .cse15) .cse4 .cse5) (or .cse7 .cse0 .cse11 .cse2 .cse9 .cse5 .cse6) (or .cse7 .cse16 (and .cse12 .cse19 .cse13)) (or .cse8 (and .cse10 .cse12 .cse17 .cse13 .cse14 .cse15) .cse4 .cse5) (or .cse7 .cse2 .cse20 .cse9 (<= ~a28~0 9) .cse5) (or .cse7 .cse1 .cse3 .cse5 .cse6) (or .cse7 .cse8 .cse3 .cse21 .cse5) (or .cse7 .cse11 .cse16 .cse6) (or .cse11 .cse20 .cse9 .cse4 .cse5 .cse6) (or .cse7 .cse0 .cse2 .cse3 .cse21 .cse5)))) [2020-07-20 14:09:01,700 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,700 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,701 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,701 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 14:09:01,701 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 14:09:01,701 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 14:09:01,701 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 14:09:01,701 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 14:09:01,701 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 14:09:01,701 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 14:09:01,702 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 14:09:01,702 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 14:09:01,702 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 14:09:01,702 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 14:09:01,702 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 14:09:01,702 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 14:09:01,702 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,702 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,703 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,703 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,703 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,703 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,703 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 14:09:01,703 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 14:09:01,703 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 14:09:01,703 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 14:09:01,704 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 14:09:01,704 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 14:09:01,704 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 14:09:01,704 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 14:09:01,704 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 14:09:01,704 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 14:09:01,704 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 14:09:01,704 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:09:01,705 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:09:01,705 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 14:09:01,705 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 14:09:01,705 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 14:09:01,705 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,705 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,705 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,705 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,706 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:09:01,706 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 14:09:01,706 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 14:09:01,706 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 14:09:01,706 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 14:09:01,706 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 14:09:01,706 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 14:09:01,706 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 14:09:01,707 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 14:09:01,707 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 14:09:01,707 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 14:09:01,707 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 14:09:01,707 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:09:01,707 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 14:09:01,707 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:09:01,707 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 14:09:01,708 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:09:01,708 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:09:01,708 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 14:09:01,708 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 14:09:01,708 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:09:01,708 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 14:09:01,708 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:09:01,708 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:09:01,709 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 14:09:01,709 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse9 (<= ~a25~0 0)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (<= ~a28~0 10)) (.cse8 (<= 1 ~a19~0)) (.cse10 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse5 (= 1 ~a25~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse4) (and .cse3 .cse0 .cse2 .cse5) (and .cse3 .cse0 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (<= ~a28~0 9) .cse9 .cse1) (and .cse0 .cse6 .cse7 .cse1 .cse11 .cse5) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse7 .cse8 .cse10 .cse11 .cse5) (and .cse3 .cse0 .cse6 .cse2 (= ~a25~0 |old(~a25~0)|)))) [2020-07-20 14:09:01,709 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:09:01,709 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:09:01,709 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse9 (<= ~a25~0 0)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (<= ~a28~0 10)) (.cse8 (<= 1 ~a19~0)) (.cse10 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse5 (= 1 ~a25~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse4) (and .cse3 .cse0 .cse2 .cse5) (and .cse3 .cse0 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (<= ~a28~0 9) .cse9 .cse1) (and .cse0 .cse6 .cse7 .cse1 .cse11 .cse5) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse7 .cse8 .cse10 .cse11 .cse5) (and .cse3 .cse0 .cse6 .cse2 (= ~a25~0 |old(~a25~0)|)))) [2020-07-20 14:09:01,710 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 14:09:01,710 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 14:09:01,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:09:01 BoogieIcfgContainer [2020-07-20 14:09:01,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:09:01,766 INFO L168 Benchmark]: Toolchain (without parser) took 24385.12 ms. Allocated memory was 141.6 MB in the beginning and 616.6 MB in the end (delta: 475.0 MB). Free memory was 97.8 MB in the beginning and 182.8 MB in the end (delta: -85.0 MB). Peak memory consumption was 431.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:01,767 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 141.6 MB. Free memory is still 117.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 14:09:01,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.33 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 97.3 MB in the beginning and 168.9 MB in the end (delta: -71.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:01,768 INFO L168 Benchmark]: Boogie Preprocessor took 152.80 ms. Allocated memory is still 202.4 MB. Free memory was 168.9 MB in the beginning and 164.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:01,769 INFO L168 Benchmark]: RCFGBuilder took 1540.86 ms. Allocated memory was 202.4 MB in the beginning and 229.1 MB in the end (delta: 26.7 MB). Free memory was 164.6 MB in the beginning and 179.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:01,770 INFO L168 Benchmark]: TraceAbstraction took 21880.86 ms. Allocated memory was 229.1 MB in the beginning and 616.6 MB in the end (delta: 387.4 MB). Free memory was 177.8 MB in the beginning and 182.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 423.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:01,774 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 141.6 MB. Free memory is still 117.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 798.33 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 97.3 MB in the beginning and 168.9 MB in the end (delta: -71.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.80 ms. Allocated memory is still 202.4 MB. Free memory was 168.9 MB in the beginning and 164.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1540.86 ms. Allocated memory was 202.4 MB in the beginning and 229.1 MB in the end (delta: 26.7 MB). Free memory was 164.6 MB in the beginning and 179.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21880.86 ms. Allocated memory was 229.1 MB in the beginning and 616.6 MB in the end (delta: 387.4 MB). Free memory was 177.8 MB in the beginning and 182.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 423.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 541]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a19)) || ((a17 <= \old(a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (1 == a19 && a17 <= 7)) || (((1 == a19 && a17 <= \old(a17)) && a28 <= 7) && 1 == a25)) || (((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 1 == a25)) || !(\old(a11) <= 0)) || (((((a17 <= \old(a17) && a28 <= 10) && 1 <= a19) && a25 <= 0) && a19 <= \old(a19)) && 9 <= a28)) || (((a17 <= \old(a17) && a28 <= 9) && a25 <= 0) && a19 <= 0)) || (((((a17 <= \old(a17) && a11 <= 0) && a28 <= 10) && a19 <= 0) && 9 <= a28) && 1 == a25)) || !(\old(a25) <= 0)) || (a28 <= 10 && a17 <= 7)) || !(\old(a17) <= 8)) || (((((a17 <= \old(a17) && a28 <= 10) && 1 <= a19) && a19 <= \old(a19)) && 9 <= a28) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= 7) && a25 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.5s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 925 SDtfs, 4512 SDslu, 656 SDs, 0 SdLazy, 7632 SolverSat, 1211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3593 GetRequests, 3531 SyntacticMatches, 12 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5505occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 389 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 215 PreInvPairs, 299 NumberOfFragments, 840 HoareAnnotationTreeSize, 215 FomulaSimplifications, 3018 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4266 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2085 NumberOfCodeBlocks, 2085 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 3561 ConstructedInterpolants, 0 QuantifiedInterpolants, 1358761 SizeOfPredicates, 13 NumberOfNonLiveVariables, 5166 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 2122/2295 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...