/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:48:40,922 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:48:40,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:48:40,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:48:40,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:48:40,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:48:40,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:48:40,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:48:40,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:48:40,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:48:40,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:48:40,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:48:40,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:48:40,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:48:40,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:48:41,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:48:41,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:48:41,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:48:41,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:48:41,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:48:41,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:48:41,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:48:41,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:48:41,024 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:48:41,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:48:41,025 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:48:41,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:48:41,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:48:41,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:48:41,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:48:41,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:48:41,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:48:41,026 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:48:41,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:48:41,027 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:48:41,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:48:41,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:48:41,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:48:41,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:48:41,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:48:41,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:48:41,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:48:41,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:48:41,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:48:41,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:48:41,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:41,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:48:41,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:48:41,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:48:41,348 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:48:41,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:48:41,372 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:48:41,373 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:48:41,374 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:48:41,375 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-07-21 22:48:41,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc779b6fb/0393855f920d4de4b776dfe2d4559f5f/FLAG97afe766b [2020-07-21 22:48:42,031 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:48:42,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-07-21 22:48:42,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc779b6fb/0393855f920d4de4b776dfe2d4559f5f/FLAG97afe766b [2020-07-21 22:48:42,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc779b6fb/0393855f920d4de4b776dfe2d4559f5f [2020-07-21 22:48:42,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:48:42,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:48:42,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:48:42,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:48:42,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:48:42,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:48:42" (1/1) ... [2020-07-21 22:48:42,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fc409a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:42, skipping insertion in model container [2020-07-21 22:48:42,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:48:42" (1/1) ... [2020-07-21 22:48:42,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:48:42,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:48:42,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:48:42,787 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:48:43,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:48:43,018 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:48:43,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43 WrapperNode [2020-07-21 22:48:43,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:48:43,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:48:43,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:48:43,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:48:43,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43" (1/1) ... [2020-07-21 22:48:43,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43" (1/1) ... [2020-07-21 22:48:43,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43" (1/1) ... [2020-07-21 22:48:43,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43" (1/1) ... [2020-07-21 22:48:43,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43" (1/1) ... [2020-07-21 22:48:43,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43" (1/1) ... [2020-07-21 22:48:43,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43" (1/1) ... [2020-07-21 22:48:43,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:48:43,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:48:43,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:48:43,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:48:43,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:48:43,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:48:43,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:48:43,197 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:48:43,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:48:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:48:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:48:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:48:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:48:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:48:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:48:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:48:44,382 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:48:44,382 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:48:44,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:48:44 BoogieIcfgContainer [2020-07-21 22:48:44,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:48:44,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:48:44,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:48:44,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:48:44,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:48:42" (1/3) ... [2020-07-21 22:48:44,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5433a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:48:44, skipping insertion in model container [2020-07-21 22:48:44,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:48:43" (2/3) ... [2020-07-21 22:48:44,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5433a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:48:44, skipping insertion in model container [2020-07-21 22:48:44,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:48:44" (3/3) ... [2020-07-21 22:48:44,397 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label06.c [2020-07-21 22:48:44,407 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:48:44,416 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:48:44,430 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:48:44,456 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:48:44,457 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:48:44,457 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:48:44,457 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:48:44,458 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:48:44,458 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:48:44,458 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:48:44,458 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:48:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 22:48:44,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 22:48:44,496 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:44,497 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, 1] [2020-07-21 22:48:44,498 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:44,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:44,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1251834154, now seen corresponding path program 1 times [2020-07-21 22:48:44,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:44,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247459615] [2020-07-21 22:48:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:44,760 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:48:44,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:44,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 22:48:44,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:45,177 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 22:48:45,311 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 22:48:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:45,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:48:45,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247459615] [2020-07-21 22:48:45,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:48:45,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 22:48:45,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385078448] [2020-07-21 22:48:45,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 22:48:45,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:45,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 22:48:45,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:48:45,776 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 22:48:47,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:47,522 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 22:48:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:48:47,526 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 130 [2020-07-21 22:48:47,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:47,544 INFO L225 Difference]: With dead ends: 472 [2020-07-21 22:48:47,544 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 22:48:47,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 22:48:47,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 22:48:47,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 22:48:47,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 22:48:47,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 22:48:47,611 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 130 [2020-07-21 22:48:47,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:47,612 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 22:48:47,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 22:48:47,612 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 22:48:47,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 22:48:47,616 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:47,616 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-07-21 22:48:47,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:47,832 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:47,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:47,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1999212815, now seen corresponding path program 1 times [2020-07-21 22:48:47,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:47,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197144805] [2020-07-21 22:48:47,834 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:47,941 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:48:47,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:47,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 22:48:47,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:48,627 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:48:48,631 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:48:48,631 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:48:48,765 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:48,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:49,444 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 22:48:49,619 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:48:49,779 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:48:49,921 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 22:48:49,928 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 22:48:49,931 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 22:48:49,936 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:48:49,938 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:48:49,939 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:49,941 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 22:48:49,948 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:48:49,954 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:48:49,956 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:49,969 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:49,970 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:49,973 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 22:48:49,977 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:48:49,979 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:48:49,981 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:49,988 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:49,989 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:49,992 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:49,994 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:49,997 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:49,998 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:50,010 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:48:50,011 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:50,013 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:48:50,014 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:50,604 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 22:48:50,607 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 22:48:50,608 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:48:50,674 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:48:50,675 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:50,744 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:50,772 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:50,924 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:50,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197144805] [2020-07-21 22:48:50,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:50,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 22:48:50,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332708233] [2020-07-21 22:48:50,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 22:48:50,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:50,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 22:48:50,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 22:48:50,929 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 22:48:51,986 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 22:48:52,547 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 22:48:52,850 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 22:48:53,335 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 22:48:53,570 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 22:48:54,100 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:48:56,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:56,787 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 22:48:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 22:48:56,788 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 138 [2020-07-21 22:48:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:56,795 INFO L225 Difference]: With dead ends: 588 [2020-07-21 22:48:56,795 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 22:48:56,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 248 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 22:48:56,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 22:48:56,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 22:48:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 22:48:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 22:48:56,846 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 138 [2020-07-21 22:48:56,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:56,847 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 22:48:56,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 22:48:56,847 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 22:48:56,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 22:48:56,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:56,854 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:48:57,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:57,067 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:57,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:57,068 INFO L82 PathProgramCache]: Analyzing trace with hash -188990609, now seen corresponding path program 1 times [2020-07-21 22:48:57,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:57,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328382513] [2020-07-21 22:48:57,070 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:57,180 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:48:57,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:57,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:48:57,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:57,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:48:57,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328382513] [2020-07-21 22:48:57,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:48:57,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:48:57,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017035159] [2020-07-21 22:48:57,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:48:57,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:57,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:48:57,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:48:57,239 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 22:48:57,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:57,808 INFO L93 Difference]: Finished difference Result 1042 states and 1433 transitions. [2020-07-21 22:48:57,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:48:57,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2020-07-21 22:48:57,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:57,820 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 22:48:57,820 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 22:48:57,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:48:57,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 22:48:57,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 22:48:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 22:48:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 897 transitions. [2020-07-21 22:48:57,860 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 897 transitions. Word has length 141 [2020-07-21 22:48:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:57,861 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 897 transitions. [2020-07-21 22:48:57,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:48:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 897 transitions. [2020-07-21 22:48:57,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 22:48:57,871 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:57,871 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:48:58,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:58,090 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:58,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1377706194, now seen corresponding path program 1 times [2020-07-21 22:48:58,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:58,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239758157] [2020-07-21 22:48:58,092 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:58,188 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:48:58,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:58,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:48:58,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:58,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:58,501 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:48:58,548 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:58,549 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 22:48:58,549 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:58,550 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:48:58,550 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:58,551 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:58,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239758157] [2020-07-21 22:48:58,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:58,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:48:58,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977188360] [2020-07-21 22:48:58,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:48:58,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:58,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:48:58,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:48:58,652 INFO L87 Difference]: Start difference. First operand 691 states and 897 transitions. Second operand 7 states. [2020-07-21 22:49:00,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:49:00,095 INFO L93 Difference]: Finished difference Result 1933 states and 2552 transitions. [2020-07-21 22:49:00,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:49:00,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-07-21 22:49:00,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:49:00,103 INFO L225 Difference]: With dead ends: 1933 [2020-07-21 22:49:00,103 INFO L226 Difference]: Without dead ends: 1169 [2020-07-21 22:49:00,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:49:00,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-07-21 22:49:00,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1106. [2020-07-21 22:49:00,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-07-21 22:49:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1302 transitions. [2020-07-21 22:49:00,152 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1302 transitions. Word has length 156 [2020-07-21 22:49:00,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:49:00,152 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1302 transitions. [2020-07-21 22:49:00,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:49:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1302 transitions. [2020-07-21 22:49:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-07-21 22:49:00,157 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:49:00,157 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:49:00,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:00,372 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:49:00,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:49:00,372 INFO L82 PathProgramCache]: Analyzing trace with hash -91407958, now seen corresponding path program 1 times [2020-07-21 22:49:00,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:49:00,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314316058] [2020-07-21 22:49:00,373 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:00,482 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:49:00,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:49:00,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:49:00,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:49:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:49:00,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:49:00,724 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 22:49:00,758 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:00,759 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:00,760 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:49:00,760 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:00,761 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:00,762 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:49:00,762 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:00,865 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:49:00,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314316058] [2020-07-21 22:49:00,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:49:00,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:49:00,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294742377] [2020-07-21 22:49:00,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:49:00,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:49:00,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:49:00,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:49:00,867 INFO L87 Difference]: Start difference. First operand 1106 states and 1302 transitions. Second operand 7 states. [2020-07-21 22:49:02,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:49:02,277 INFO L93 Difference]: Finished difference Result 3270 states and 3951 transitions. [2020-07-21 22:49:02,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:49:02,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-07-21 22:49:02,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:49:02,291 INFO L225 Difference]: With dead ends: 3270 [2020-07-21 22:49:02,291 INFO L226 Difference]: Without dead ends: 2093 [2020-07-21 22:49:02,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 367 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:49:02,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2020-07-21 22:49:02,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2081. [2020-07-21 22:49:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2020-07-21 22:49:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2360 transitions. [2020-07-21 22:49:02,390 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2360 transitions. Word has length 186 [2020-07-21 22:49:02,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:49:02,391 INFO L479 AbstractCegarLoop]: Abstraction has 2081 states and 2360 transitions. [2020-07-21 22:49:02,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:49:02,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2360 transitions. [2020-07-21 22:49:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-21 22:49:02,400 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:49:02,401 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:49:02,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:02,615 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:49:02,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:49:02,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1007418683, now seen corresponding path program 1 times [2020-07-21 22:49:02,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:49:02,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351397247] [2020-07-21 22:49:02,617 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:02,749 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:49:02,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:49:02,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 22:49:02,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:49:02,782 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 22:49:02,782 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:49:02,862 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:49:02,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:49:03,092 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2020-07-21 22:49:03,148 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:49:03,148 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:03,149 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:49:03,150 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:49:03,155 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:49:03,156 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:03,157 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:49:03,157 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:03,158 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:03,159 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:03,162 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:03,187 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:49:03,244 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:03,246 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:49:03,449 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 22:49:03,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351397247] [2020-07-21 22:49:03,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:49:03,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 22:49:03,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492700187] [2020-07-21 22:49:03,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:49:03,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:49:03,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:49:03,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:49:03,452 INFO L87 Difference]: Start difference. First operand 2081 states and 2360 transitions. Second operand 8 states. [2020-07-21 22:49:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:49:04,426 INFO L93 Difference]: Finished difference Result 5085 states and 5919 transitions. [2020-07-21 22:49:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:49:04,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 203 [2020-07-21 22:49:04,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:49:04,442 INFO L225 Difference]: With dead ends: 5085 [2020-07-21 22:49:04,442 INFO L226 Difference]: Without dead ends: 3070 [2020-07-21 22:49:04,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 399 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:49:04,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2020-07-21 22:49:04,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 2643. [2020-07-21 22:49:04,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2643 states. [2020-07-21 22:49:04,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 3024 transitions. [2020-07-21 22:49:04,529 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 3024 transitions. Word has length 203 [2020-07-21 22:49:04,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:49:04,529 INFO L479 AbstractCegarLoop]: Abstraction has 2643 states and 3024 transitions. [2020-07-21 22:49:04,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:49:04,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 3024 transitions. [2020-07-21 22:49:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-07-21 22:49:04,538 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:49:04,539 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:49:04,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:04,752 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:49:04,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:49:04,753 INFO L82 PathProgramCache]: Analyzing trace with hash -940468005, now seen corresponding path program 1 times [2020-07-21 22:49:04,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:49:04,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296381056] [2020-07-21 22:49:04,754 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:04,879 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:49:04,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:49:04,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:49:04,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:49:04,946 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:49:04,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:49:05,122 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 141 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:49:05,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296381056] [2020-07-21 22:49:05,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:49:05,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:49:05,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23158931] [2020-07-21 22:49:05,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:49:05,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:49:05,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:49:05,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:49:05,125 INFO L87 Difference]: Start difference. First operand 2643 states and 3024 transitions. Second operand 7 states. [2020-07-21 22:49:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:49:06,261 INFO L93 Difference]: Finished difference Result 5774 states and 6666 transitions. [2020-07-21 22:49:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 22:49:06,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-07-21 22:49:06,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:49:06,281 INFO L225 Difference]: With dead ends: 5774 [2020-07-21 22:49:06,281 INFO L226 Difference]: Without dead ends: 3197 [2020-07-21 22:49:06,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 471 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:49:06,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2020-07-21 22:49:06,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2101. [2020-07-21 22:49:06,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2101 states. [2020-07-21 22:49:06,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 2366 transitions. [2020-07-21 22:49:06,355 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 2366 transitions. Word has length 237 [2020-07-21 22:49:06,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:49:06,355 INFO L479 AbstractCegarLoop]: Abstraction has 2101 states and 2366 transitions. [2020-07-21 22:49:06,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:49:06,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 2366 transitions. [2020-07-21 22:49:06,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-07-21 22:49:06,363 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:49:06,363 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:49:06,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:06,577 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:49:06,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:49:06,578 INFO L82 PathProgramCache]: Analyzing trace with hash -449944081, now seen corresponding path program 1 times [2020-07-21 22:49:06,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:49:06,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977233623] [2020-07-21 22:49:06,579 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:06,722 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:49:06,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:49:06,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:49:06,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:49:06,748 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 22:49:06,748 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:49:06,823 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 22:49:06,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:49:07,086 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 22:49:07,138 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:49:07,139 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:49:07,140 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:49:07,140 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:07,141 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:07,142 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:07,143 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-07-21 22:49:07,143 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:07,145 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:49:07,146 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:07,152 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-07-21 22:49:07,152 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:07,152 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:07,153 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:49:07,154 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:49:07,154 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-07-21 22:49:07,154 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:07,155 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:49:07,156 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:49:07,183 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:49:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 22:49:07,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977233623] [2020-07-21 22:49:07,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:49:07,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:49:07,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824549127] [2020-07-21 22:49:07,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:49:07,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:49:07,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:49:07,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:49:07,298 INFO L87 Difference]: Start difference. First operand 2101 states and 2366 transitions. Second operand 7 states. [2020-07-21 22:49:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:49:08,618 INFO L93 Difference]: Finished difference Result 5113 states and 5811 transitions. [2020-07-21 22:49:08,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:49:08,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 259 [2020-07-21 22:49:08,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:49:08,637 INFO L225 Difference]: With dead ends: 5113 [2020-07-21 22:49:08,637 INFO L226 Difference]: Without dead ends: 3078 [2020-07-21 22:49:08,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 516 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:49:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2020-07-21 22:49:08,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3072. [2020-07-21 22:49:08,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3072 states. [2020-07-21 22:49:08,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 3442 transitions. [2020-07-21 22:49:08,715 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 3442 transitions. Word has length 259 [2020-07-21 22:49:08,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:49:08,716 INFO L479 AbstractCegarLoop]: Abstraction has 3072 states and 3442 transitions. [2020-07-21 22:49:08,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:49:08,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 3442 transitions. [2020-07-21 22:49:08,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-07-21 22:49:08,725 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:49:08,726 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:49:08,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:08,939 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:49:08,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:49:08,939 INFO L82 PathProgramCache]: Analyzing trace with hash -983432982, now seen corresponding path program 1 times [2020-07-21 22:49:08,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:49:08,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306923109] [2020-07-21 22:49:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:09,190 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:49:09,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:49:09,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:49:09,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:49:09,326 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:49:09,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:49:09,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306923109] [2020-07-21 22:49:09,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:49:09,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:49:09,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426547844] [2020-07-21 22:49:09,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:49:09,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:49:09,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:49:09,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:49:09,330 INFO L87 Difference]: Start difference. First operand 3072 states and 3442 transitions. Second operand 3 states. [2020-07-21 22:49:09,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:49:09,825 INFO L93 Difference]: Finished difference Result 5097 states and 5742 transitions. [2020-07-21 22:49:09,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:49:09,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2020-07-21 22:49:09,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:49:09,845 INFO L225 Difference]: With dead ends: 5097 [2020-07-21 22:49:09,845 INFO L226 Difference]: Without dead ends: 2091 [2020-07-21 22:49:09,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:49:09,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2020-07-21 22:49:09,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 1954. [2020-07-21 22:49:09,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2020-07-21 22:49:09,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2136 transitions. [2020-07-21 22:49:09,904 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2136 transitions. Word has length 272 [2020-07-21 22:49:09,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:49:09,904 INFO L479 AbstractCegarLoop]: Abstraction has 1954 states and 2136 transitions. [2020-07-21 22:49:09,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:49:09,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2136 transitions. [2020-07-21 22:49:09,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-07-21 22:49:09,912 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:49:09,913 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:49:10,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:10,126 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:49:10,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:49:10,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1412913811, now seen corresponding path program 1 times [2020-07-21 22:49:10,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:49:10,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616438502] [2020-07-21 22:49:10,127 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:10,325 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:49:10,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:49:10,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:49:10,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:49:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-07-21 22:49:10,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:49:10,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616438502] [2020-07-21 22:49:10,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:49:10,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:49:10,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680787494] [2020-07-21 22:49:10,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:49:10,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:49:10,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:49:10,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:49:10,404 INFO L87 Difference]: Start difference. First operand 1954 states and 2136 transitions. Second operand 3 states. [2020-07-21 22:49:11,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:49:11,007 INFO L93 Difference]: Finished difference Result 4249 states and 4663 transitions. [2020-07-21 22:49:11,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:49:11,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 292 [2020-07-21 22:49:11,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:49:11,009 INFO L225 Difference]: With dead ends: 4249 [2020-07-21 22:49:11,009 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:49:11,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:49:11,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:49:11,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:49:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:49:11,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:49:11,018 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 292 [2020-07-21 22:49:11,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:49:11,018 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:49:11,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:49:11,018 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:49:11,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:49:11,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:49:11,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:49:11,704 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 134 [2020-07-21 22:49:11,823 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 124 [2020-07-21 22:49:13,572 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 199 DAG size of output: 107 [2020-07-21 22:49:14,435 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 64 [2020-07-21 22:49:15,175 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 64 [2020-07-21 22:49:15,180 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:49:15,180 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (<= |old(~a8~0)| ~a8~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 22:49:15,180 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:49:15,181 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 22:49:15,181 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 22:49:15,181 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,181 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,181 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,181 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,181 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,182 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,182 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 22:49:15,182 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 22:49:15,182 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 22:49:15,182 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 22:49:15,182 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 22:49:15,182 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 22:49:15,183 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 22:49:15,183 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 22:49:15,183 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 22:49:15,183 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 22:49:15,183 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,183 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,183 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,183 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,184 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,184 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,184 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 22:49:15,184 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 22:49:15,184 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 22:49:15,184 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 22:49:15,184 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 22:49:15,184 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 22:49:15,185 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 22:49:15,185 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 22:49:15,185 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 22:49:15,185 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 22:49:15,185 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 22:49:15,187 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 548) no Hoare annotation was computed. [2020-07-21 22:49:15,187 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 22:49:15,187 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 22:49:15,187 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 22:49:15,187 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 22:49:15,187 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,187 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,187 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,188 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,188 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,189 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 22:49:15,189 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 22:49:15,189 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 22:49:15,189 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 22:49:15,189 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 22:49:15,189 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 22:49:15,189 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 22:49:15,189 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 22:49:15,189 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 22:49:15,190 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,190 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,190 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,190 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,190 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,190 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 22:49:15,190 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 22:49:15,190 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 22:49:15,191 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 22:49:15,191 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 22:49:15,191 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 22:49:15,191 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 22:49:15,191 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 22:49:15,191 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 22:49:15,191 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 22:49:15,191 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 22:49:15,192 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 22:49:15,192 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 22:49:15,192 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,192 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,192 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,192 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,192 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,192 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 22:49:15,192 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 22:49:15,193 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 22:49:15,193 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 22:49:15,193 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 22:49:15,193 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 22:49:15,193 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 22:49:15,193 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 22:49:15,193 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 22:49:15,193 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,194 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,194 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,194 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,194 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,194 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,194 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 22:49:15,194 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,195 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 22:49:15,195 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 22:49:15,195 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 22:49:15,195 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 22:49:15,195 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 22:49:15,195 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 22:49:15,195 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 22:49:15,195 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 22:49:15,196 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 22:49:15,196 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 22:49:15,196 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 22:49:15,196 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 22:49:15,196 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 22:49:15,196 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,196 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,196 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,197 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,197 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,197 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 22:49:15,197 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 22:49:15,197 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 22:49:15,197 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 22:49:15,197 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 22:49:15,198 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 22:49:15,198 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 22:49:15,198 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 22:49:15,198 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,198 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,198 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,198 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,198 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,199 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 22:49:15,199 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 22:49:15,199 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 22:49:15,199 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 22:49:15,199 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 22:49:15,199 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 22:49:15,199 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 22:49:15,199 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 22:49:15,200 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 22:49:15,200 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 22:49:15,200 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse28 (= 1 |old(~a7~0)|)) (.cse29 (= 1 |old(~a21~0)|))) (let ((.cse22 (<= ~a16~0 |old(~a16~0)|)) (.cse25 (<= |old(~a16~0)| ~a16~0)) (.cse1 (= ~a21~0 |old(~a21~0)|)) (.cse4 (not .cse29)) (.cse2 (not .cse28)) (.cse23 (= ~a7~0 |old(~a7~0)|)) (.cse24 (= ~a17~0 |old(~a17~0)|)) (.cse26 (<= |old(~a8~0)| ~a8~0)) (.cse27 (= 1 ~a21~0)) (.cse17 (= ~a20~0 |old(~a20~0)|))) (let ((.cse0 (= 1 ~a7~0)) (.cse12 (not (= 15 |old(~a8~0)|))) (.cse14 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse15 (= 15 ~a8~0)) (.cse6 (not (<= |old(~a16~0)| 5))) (.cse7 (not (< 4 |old(~a16~0)|))) (.cse8 (and .cse23 .cse24 .cse26 (<= ~a16~0 5) .cse27 (< 4 ~a16~0) .cse17)) (.cse9 (not (<= |old(~a17~0)| 0))) (.cse3 (not (<= |old(~a16~0)| 4))) (.cse11 (and (or .cse28 .cse4) (or .cse2 .cse29))) (.cse19 (not (<= 15 |old(~a8~0)|))) (.cse13 (not (= 1 |old(~a17~0)|))) (.cse20 (and .cse22 .cse23 .cse24 .cse25 .cse26 .cse17 .cse1)) (.cse21 (not (<= 6 |old(~a16~0)|))) (.cse16 (not (= 1 |old(~a20~0)|))) (.cse18 (and .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse17)) (.cse5 (not (<= |old(~a7~0)| 0))) (.cse10 (not (= 8 ~a12~0)))) (and (or (and .cse0 .cse1 (<= ~a16~0 4)) .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (or .cse12 .cse5 .cse6 .cse7 (not (<= |old(~a20~0)| 0)) .cse13 .cse14 .cse4 .cse15 .cse10) (or .cse16 .cse2 (and .cse0 .cse17 .cse1) .cse4) (or .cse18 .cse5 .cse3 .cse9 .cse10 .cse11) (or .cse16 .cse12 .cse5 .cse6 .cse7 .cse13 .cse14 .cse4 .cse15 .cse10) (or .cse2 .cse6 .cse7 .cse8 .cse4 .cse9) (or .cse19 .cse5 .cse6 .cse7 .cse13 .cse8 .cse10 .cse11) (or .cse5 .cse20 .cse21 .cse9 .cse10) (or .cse19 .cse18 .cse5 .cse13 .cse3 .cse10 .cse11) (or (not (<= |old(~a21~0)| 0)) .cse20) (or .cse19 .cse5 .cse13 .cse20 .cse21 .cse10) (or .cse16 .cse18 .cse5 .cse4 .cse10))))) [2020-07-21 22:49:15,200 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 22:49:15,200 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,200 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 22:49:15,201 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 22:49:15,202 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,203 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:49:15,204 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 22:49:15,205 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:49:15,205 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:49:15,205 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 15 ~a8~0) (= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 22:49:15,205 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:49:15,205 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse5 (<= 6 ~a16~0)) (.cse2 (= 1 ~a20~0)) (.cse7 (= 1 ~a7~0)) (.cse8 (<= ~a16~0 5)) (.cse9 (< 4 ~a16~0)) (.cse4 (<= ~a17~0 0)) (.cse3 (not (= 1 |old(~a7~0)|))) (.cse0 (<= ~a7~0 0)) (.cse10 (= 1 ~a17~0)) (.cse11 (<= 15 ~a8~0)) (.cse1 (= 1 ~a21~0)) (.cse12 (<= ~a16~0 4)) (.cse6 (= 8 ~a12~0))) (or (and .cse0 .cse1 .cse2) (<= ~a21~0 0) (and .cse3 .cse4 .cse5 .cse0 .cse6) (not (= 15 |old(~a8~0)|)) (and .cse7 .cse4 .cse8 .cse1) (not (<= |old(~a7~0)| 0)) (and .cse3 .cse4 .cse0 .cse8 .cse1 .cse9 .cse6) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse3 .cse5 .cse0 .cse10 .cse11 .cse6) (and .cse7 .cse1 .cse2) (and .cse7 .cse1 .cse12) (not (= 1 |old(~a20~0)|)) (and .cse3 .cse0 .cse10 .cse11 .cse8 .cse1 .cse9 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse4 .cse0 .cse1 .cse12 .cse6) (not (= 1 |old(~a21~0)|)) (not .cse6) (and .cse3 .cse0 .cse10 .cse11 .cse1 .cse12 .cse6))) [2020-07-21 22:49:15,205 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 22:49:15,205 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 22:49:15,206 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse5 (<= 6 ~a16~0)) (.cse2 (= 1 ~a20~0)) (.cse7 (= 1 ~a7~0)) (.cse8 (<= ~a16~0 5)) (.cse9 (< 4 ~a16~0)) (.cse4 (<= ~a17~0 0)) (.cse3 (not (= 1 |old(~a7~0)|))) (.cse0 (<= ~a7~0 0)) (.cse10 (= 1 ~a17~0)) (.cse11 (<= 15 ~a8~0)) (.cse1 (= 1 ~a21~0)) (.cse12 (<= ~a16~0 4)) (.cse6 (= 8 ~a12~0))) (or (and .cse0 .cse1 .cse2) (<= ~a21~0 0) (and .cse3 .cse4 .cse5 .cse0 .cse6) (not (= 15 |old(~a8~0)|)) (and .cse7 .cse4 .cse8 .cse1) (not (<= |old(~a7~0)| 0)) (and .cse3 .cse4 .cse0 .cse8 .cse1 .cse9 .cse6) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse3 .cse5 .cse0 .cse10 .cse11 .cse6) (and .cse7 .cse1 .cse2) (and .cse7 .cse1 .cse12) (not (= 1 |old(~a20~0)|)) (and .cse3 .cse0 .cse10 .cse11 .cse8 .cse1 .cse9 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse4 .cse0 .cse1 .cse12 .cse6) (not (= 1 |old(~a21~0)|)) (not .cse6) (and .cse3 .cse0 .cse10 .cse11 .cse1 .cse12 .cse6))) [2020-07-21 22:49:15,206 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:49:15,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:49:15 BoogieIcfgContainer [2020-07-21 22:49:15,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:49:15,231 INFO L168 Benchmark]: Toolchain (without parser) took 32925.15 ms. Allocated memory was 143.1 MB in the beginning and 602.9 MB in the end (delta: 459.8 MB). Free memory was 99.1 MB in the beginning and 409.0 MB in the end (delta: -310.0 MB). Peak memory consumption was 481.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:49:15,232 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 22:49:15,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.05 ms. Allocated memory was 143.1 MB in the beginning and 203.4 MB in the end (delta: 60.3 MB). Free memory was 98.6 MB in the beginning and 169.5 MB in the end (delta: -70.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:49:15,234 INFO L168 Benchmark]: Boogie Preprocessor took 101.04 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:49:15,234 INFO L168 Benchmark]: RCFGBuilder took 1267.13 ms. Allocated memory was 203.4 MB in the beginning and 232.3 MB in the end (delta: 28.8 MB). Free memory was 164.4 MB in the beginning and 179.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:49:15,235 INFO L168 Benchmark]: TraceAbstraction took 30839.97 ms. Allocated memory was 232.3 MB in the beginning and 602.9 MB in the end (delta: 370.7 MB). Free memory was 179.1 MB in the beginning and 409.0 MB in the end (delta: -229.9 MB). Peak memory consumption was 472.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:49:15,239 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.05 ms. Allocated memory was 143.1 MB in the beginning and 203.4 MB in the end (delta: 60.3 MB). Free memory was 98.6 MB in the beginning and 169.5 MB in the end (delta: -70.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.04 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1267.13 ms. Allocated memory was 203.4 MB in the beginning and 232.3 MB in the end (delta: 28.8 MB). Free memory was 164.4 MB in the beginning and 179.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30839.97 ms. Allocated memory was 232.3 MB in the beginning and 602.9 MB in the end (delta: 370.7 MB). Free memory was 179.1 MB in the beginning and 409.0 MB in the end (delta: -229.9 MB). Peak memory consumption was 472.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 548]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((a7 <= 0 && 1 == a21) && 1 == a20) || a21 <= 0) || ((((!(1 == \old(a7)) && a17 <= 0) && 6 <= a16) && a7 <= 0) && 8 == a12)) || !(15 == \old(a8))) || (((1 == a7 && a17 <= 0) && a16 <= 5) && 1 == a21)) || !(\old(a7) <= 0)) || ((((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && a16 <= 5) && 1 == a21) && 4 < a16) && 8 == a12)) || !(4 < \old(a16))) || !(1 == \old(a17))) || (((((!(1 == \old(a7)) && 6 <= a16) && a7 <= 0) && 1 == a17) && 15 <= a8) && 8 == a12)) || ((1 == a7 && 1 == a21) && 1 == a20)) || ((1 == a7 && 1 == a21) && a16 <= 4)) || !(1 == \old(a20))) || (((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 15 <= a8) && a16 <= 5) && 1 == a21) && 4 < a16) && 8 == a12)) || !(\old(a16) <= 5)) || (((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && 1 == a21) && a16 <= 4) && 8 == a12)) || !(1 == \old(a21))) || !(8 == a12)) || ((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 15 <= a8) && 1 == a21) && a16 <= 4) && 8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.7s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 15.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 761 SDtfs, 4781 SDslu, 509 SDs, 0 SdLazy, 10424 SolverSat, 1203 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3246 GetRequests, 3128 SyntacticMatches, 9 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3072occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1775 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 132 PreInvPairs, 172 NumberOfFragments, 1113 HoareAnnotationTreeSize, 132 FomulaSimplifications, 3306 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8511 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 2014 NumberOfCodeBlocks, 1426 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3177 ConstructedInterpolants, 0 QuantifiedInterpolants, 3438529 SizeOfPredicates, 65 NumberOfNonLiveVariables, 4404 ConjunctsInSsa, 184 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 1673/1725 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...