/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:29:15,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:29:15,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:29:15,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:29:15,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:29:15,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:29:15,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:29:15,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:29:15,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:29:15,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:29:15,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:29:15,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:29:15,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:29:15,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:29:15,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:29:15,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:29:15,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:29:15,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:29:15,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:29:15,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:29:15,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:29:15,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:29:15,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:29:15,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:29:15,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:29:15,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:29:15,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:29:15,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:29:15,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:29:15,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:29:15,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:29:15,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:29:15,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:29:15,496 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:29:15,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:29:15,497 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:29:15,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:29:15,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:29:15,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:29:15,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:29:15,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:29:15,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:29:15,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:29:15,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:29:15,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:29:15,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:29:15,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:29:15,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:29:15,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:29:15,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:29:15,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:29:15,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:29:15,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:29:15,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:29:15,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:29:15,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:15,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:29:15,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:29:15,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:29:15,797 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:29:15,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:29:15,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:29:15,815 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:29:15,816 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:29:15,817 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-20 17:29:15,896 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e37de6f5/a9472b85e60648d1aa93c81aff978277/FLAG05df1e7fd [2020-07-20 17:29:16,503 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:29:16,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-20 17:29:16,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e37de6f5/a9472b85e60648d1aa93c81aff978277/FLAG05df1e7fd [2020-07-20 17:29:16,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e37de6f5/a9472b85e60648d1aa93c81aff978277 [2020-07-20 17:29:16,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:29:16,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:29:16,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:29:16,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:29:16,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:29:16,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:16" (1/1) ... [2020-07-20 17:29:16,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27edf361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:16, skipping insertion in model container [2020-07-20 17:29:16,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:16" (1/1) ... [2020-07-20 17:29:16,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:29:16,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:29:17,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:29:17,272 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:29:17,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:29:17,516 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:29:17,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17 WrapperNode [2020-07-20 17:29:17,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:29:17,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:29:17,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:29:17,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:29:17,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17" (1/1) ... [2020-07-20 17:29:17,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17" (1/1) ... [2020-07-20 17:29:17,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17" (1/1) ... [2020-07-20 17:29:17,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17" (1/1) ... [2020-07-20 17:29:17,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17" (1/1) ... [2020-07-20 17:29:17,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17" (1/1) ... [2020-07-20 17:29:17,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17" (1/1) ... [2020-07-20 17:29:17,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:29:17,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:29:17,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:29:17,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:29:17,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:29:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:29:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:29:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:29:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:29:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:29:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:29:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:29:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:29:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:29:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:29:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:29:19,092 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:29:19,093 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:29:19,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:19 BoogieIcfgContainer [2020-07-20 17:29:19,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:29:19,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:29:19,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:29:19,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:29:19,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:29:16" (1/3) ... [2020-07-20 17:29:19,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3719ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:19, skipping insertion in model container [2020-07-20 17:29:19,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:17" (2/3) ... [2020-07-20 17:29:19,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3719ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:19, skipping insertion in model container [2020-07-20 17:29:19,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:19" (3/3) ... [2020-07-20 17:29:19,126 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label13.c [2020-07-20 17:29:19,140 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:29:19,153 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:29:19,170 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:29:19,209 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:29:19,210 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:29:19,211 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:29:19,211 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:29:19,211 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:29:19,211 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:29:19,212 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:29:19,212 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:29:19,239 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 17:29:19,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 17:29:19,255 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:19,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:19,257 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:19,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:19,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1614181646, now seen corresponding path program 1 times [2020-07-20 17:29:19,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:19,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540982637] [2020-07-20 17:29:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:19,408 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:19,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:19,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:29:19,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:19,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:19,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540982637] [2020-07-20 17:29:19,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:19,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:19,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105815161] [2020-07-20 17:29:19,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:19,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:19,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:19,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:19,520 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 17:29:20,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:20,602 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 17:29:20,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:20,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-20 17:29:20,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:20,622 INFO L225 Difference]: With dead ends: 586 [2020-07-20 17:29:20,622 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 17:29:20,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 17:29:20,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 17:29:20,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 17:29:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-20 17:29:20,708 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 61 [2020-07-20 17:29:20,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:20,709 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-20 17:29:20,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:20,709 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-20 17:29:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-20 17:29:20,716 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:20,717 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:20,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:20,933 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:20,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:20,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1316913554, now seen corresponding path program 1 times [2020-07-20 17:29:20,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:20,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434878473] [2020-07-20 17:29:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:21,042 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:21,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:21,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:21,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:21,095 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:21,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:21,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434878473] [2020-07-20 17:29:21,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:21,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:21,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463015724] [2020-07-20 17:29:21,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:21,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:21,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:21,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:21,100 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 3 states. [2020-07-20 17:29:21,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:21,871 INFO L93 Difference]: Finished difference Result 868 states and 1277 transitions. [2020-07-20 17:29:21,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:21,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-20 17:29:21,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:21,879 INFO L225 Difference]: With dead ends: 868 [2020-07-20 17:29:21,879 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 17:29:21,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 17:29:21,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-20 17:29:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 17:29:21,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 762 transitions. [2020-07-20 17:29:21,923 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 762 transitions. Word has length 135 [2020-07-20 17:29:21,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:21,923 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 762 transitions. [2020-07-20 17:29:21,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:21,924 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 762 transitions. [2020-07-20 17:29:21,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-20 17:29:21,931 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:21,931 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:22,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:22,146 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:22,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:22,147 INFO L82 PathProgramCache]: Analyzing trace with hash 2120193425, now seen corresponding path program 1 times [2020-07-20 17:29:22,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:22,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911240498] [2020-07-20 17:29:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:22,245 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:22,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:22,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:22,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:22,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:22,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911240498] [2020-07-20 17:29:22,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:22,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:22,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916700346] [2020-07-20 17:29:22,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:22,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:22,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:22,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:22,323 INFO L87 Difference]: Start difference. First operand 580 states and 762 transitions. Second operand 3 states. [2020-07-20 17:29:23,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:23,070 INFO L93 Difference]: Finished difference Result 1440 states and 1957 transitions. [2020-07-20 17:29:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:23,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-07-20 17:29:23,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:23,077 INFO L225 Difference]: With dead ends: 1440 [2020-07-20 17:29:23,077 INFO L226 Difference]: Without dead ends: 866 [2020-07-20 17:29:23,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-20 17:29:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2020-07-20 17:29:23,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-20 17:29:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1139 transitions. [2020-07-20 17:29:23,122 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1139 transitions. Word has length 140 [2020-07-20 17:29:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:23,123 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1139 transitions. [2020-07-20 17:29:23,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1139 transitions. [2020-07-20 17:29:23,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-20 17:29:23,138 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:23,139 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:23,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:23,353 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:23,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:23,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1756677455, now seen corresponding path program 1 times [2020-07-20 17:29:23,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:23,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434444003] [2020-07-20 17:29:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:23,444 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:23,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:23,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:23,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:23,481 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:23,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:23,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434444003] [2020-07-20 17:29:23,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:23,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:23,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311708897] [2020-07-20 17:29:23,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:23,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:23,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:23,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:23,483 INFO L87 Difference]: Start difference. First operand 866 states and 1139 transitions. Second operand 3 states. [2020-07-20 17:29:24,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:24,288 INFO L93 Difference]: Finished difference Result 2012 states and 2717 transitions. [2020-07-20 17:29:24,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:24,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2020-07-20 17:29:24,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:24,306 INFO L225 Difference]: With dead ends: 2012 [2020-07-20 17:29:24,306 INFO L226 Difference]: Without dead ends: 1152 [2020-07-20 17:29:24,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-20 17:29:24,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2020-07-20 17:29:24,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2020-07-20 17:29:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1466 transitions. [2020-07-20 17:29:24,347 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1466 transitions. Word has length 156 [2020-07-20 17:29:24,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:24,348 INFO L479 AbstractCegarLoop]: Abstraction has 1152 states and 1466 transitions. [2020-07-20 17:29:24,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:24,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1466 transitions. [2020-07-20 17:29:24,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-20 17:29:24,357 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:24,357 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:24,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:24,573 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:24,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:24,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1335928450, now seen corresponding path program 1 times [2020-07-20 17:29:24,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:24,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680198559] [2020-07-20 17:29:24,575 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:24,681 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:24,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:24,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:24,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:24,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:29:24,875 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:24,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680198559] [2020-07-20 17:29:24,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:29:24,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:29:24,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890620226] [2020-07-20 17:29:24,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:29:24,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:24,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:29:24,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:29:24,878 INFO L87 Difference]: Start difference. First operand 1152 states and 1466 transitions. Second operand 7 states. [2020-07-20 17:29:26,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:26,414 INFO L93 Difference]: Finished difference Result 3951 states and 5238 transitions. [2020-07-20 17:29:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 17:29:26,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-07-20 17:29:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:26,431 INFO L225 Difference]: With dead ends: 3951 [2020-07-20 17:29:26,431 INFO L226 Difference]: Without dead ends: 1921 [2020-07-20 17:29:26,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 421 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 17:29:26,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-20 17:29:26,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1885. [2020-07-20 17:29:26,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-07-20 17:29:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2211 transitions. [2020-07-20 17:29:26,528 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2211 transitions. Word has length 213 [2020-07-20 17:29:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:26,529 INFO L479 AbstractCegarLoop]: Abstraction has 1885 states and 2211 transitions. [2020-07-20 17:29:26,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:29:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2211 transitions. [2020-07-20 17:29:26,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-07-20 17:29:26,538 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:26,540 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:26,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:26,755 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:26,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:26,756 INFO L82 PathProgramCache]: Analyzing trace with hash -45528551, now seen corresponding path program 1 times [2020-07-20 17:29:26,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:26,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169133240] [2020-07-20 17:29:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:26,908 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:26,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:26,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:26,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:26,952 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-20 17:29:26,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:26,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169133240] [2020-07-20 17:29:26,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:26,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:26,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784290866] [2020-07-20 17:29:26,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:26,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:26,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:26,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:26,955 INFO L87 Difference]: Start difference. First operand 1885 states and 2211 transitions. Second operand 3 states. [2020-07-20 17:29:27,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:27,598 INFO L93 Difference]: Finished difference Result 4050 states and 4819 transitions. [2020-07-20 17:29:27,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:27,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-07-20 17:29:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:27,611 INFO L225 Difference]: With dead ends: 4050 [2020-07-20 17:29:27,612 INFO L226 Difference]: Without dead ends: 2169 [2020-07-20 17:29:27,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:27,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2020-07-20 17:29:27,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2024. [2020-07-20 17:29:27,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2020-07-20 17:29:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 2390 transitions. [2020-07-20 17:29:27,674 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 2390 transitions. Word has length 228 [2020-07-20 17:29:27,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:27,675 INFO L479 AbstractCegarLoop]: Abstraction has 2024 states and 2390 transitions. [2020-07-20 17:29:27,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:27,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 2390 transitions. [2020-07-20 17:29:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-20 17:29:27,681 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:27,682 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:27,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:27,896 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:27,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:27,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1221820657, now seen corresponding path program 1 times [2020-07-20 17:29:27,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:27,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488312156] [2020-07-20 17:29:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:28,014 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:28,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:28,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:28,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 17:29:28,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:28,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488312156] [2020-07-20 17:29:28,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:28,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:28,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705675948] [2020-07-20 17:29:28,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:28,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:28,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:28,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:28,094 INFO L87 Difference]: Start difference. First operand 2024 states and 2390 transitions. Second operand 3 states. [2020-07-20 17:29:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:28,614 INFO L93 Difference]: Finished difference Result 2026 states and 2391 transitions. [2020-07-20 17:29:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:28,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-07-20 17:29:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:28,627 INFO L225 Difference]: With dead ends: 2026 [2020-07-20 17:29:28,628 INFO L226 Difference]: Without dead ends: 2024 [2020-07-20 17:29:28,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:28,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2020-07-20 17:29:28,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 2024. [2020-07-20 17:29:28,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2020-07-20 17:29:28,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 2389 transitions. [2020-07-20 17:29:28,679 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 2389 transitions. Word has length 244 [2020-07-20 17:29:28,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:28,680 INFO L479 AbstractCegarLoop]: Abstraction has 2024 states and 2389 transitions. [2020-07-20 17:29:28,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:28,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 2389 transitions. [2020-07-20 17:29:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-20 17:29:28,687 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:28,687 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:28,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:28,903 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:28,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:28,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1248765022, now seen corresponding path program 1 times [2020-07-20 17:29:28,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:28,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864307419] [2020-07-20 17:29:28,905 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:29,058 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:29,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:29,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:29:29,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-20 17:29:29,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:29,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864307419] [2020-07-20 17:29:29,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:29,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:29:29,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304057030] [2020-07-20 17:29:29,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:29:29,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:29,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:29:29,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:29:29,158 INFO L87 Difference]: Start difference. First operand 2024 states and 2389 transitions. Second operand 5 states. [2020-07-20 17:29:29,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:29,982 INFO L93 Difference]: Finished difference Result 3943 states and 4678 transitions. [2020-07-20 17:29:29,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:29:29,988 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 257 [2020-07-20 17:29:29,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:29,997 INFO L225 Difference]: With dead ends: 3943 [2020-07-20 17:29:29,997 INFO L226 Difference]: Without dead ends: 2068 [2020-07-20 17:29:30,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:29:30,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2020-07-20 17:29:30,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2062. [2020-07-20 17:29:30,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2062 states. [2020-07-20 17:29:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2433 transitions. [2020-07-20 17:29:30,054 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2433 transitions. Word has length 257 [2020-07-20 17:29:30,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:30,055 INFO L479 AbstractCegarLoop]: Abstraction has 2062 states and 2433 transitions. [2020-07-20 17:29:30,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:29:30,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2433 transitions. [2020-07-20 17:29:30,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 17:29:30,064 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:30,064 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:30,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:30,269 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:30,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:30,269 INFO L82 PathProgramCache]: Analyzing trace with hash -649626018, now seen corresponding path program 1 times [2020-07-20 17:29:30,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:30,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780791886] [2020-07-20 17:29:30,270 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:30,432 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:30,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:30,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:30,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:30,489 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 17:29:30,490 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:29:30,603 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-20 17:29:30,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:29:30,724 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:30,725 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:30,730 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-20 17:29:30,730 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 234 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-20 17:29:31,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780791886] [2020-07-20 17:29:31,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:29:31,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:29:31,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665796902] [2020-07-20 17:29:31,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:29:31,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:31,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:29:31,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:29:31,013 INFO L87 Difference]: Start difference. First operand 2062 states and 2433 transitions. Second operand 6 states. [2020-07-20 17:29:32,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:32,090 INFO L93 Difference]: Finished difference Result 4011 states and 4817 transitions. [2020-07-20 17:29:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:29:32,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 327 [2020-07-20 17:29:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:32,101 INFO L225 Difference]: With dead ends: 4011 [2020-07-20 17:29:32,101 INFO L226 Difference]: Without dead ends: 2098 [2020-07-20 17:29:32,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 650 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:29:32,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-07-20 17:29:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1927. [2020-07-20 17:29:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2020-07-20 17:29:32,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2194 transitions. [2020-07-20 17:29:32,155 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2194 transitions. Word has length 327 [2020-07-20 17:29:32,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:32,156 INFO L479 AbstractCegarLoop]: Abstraction has 1927 states and 2194 transitions. [2020-07-20 17:29:32,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:29:32,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2194 transitions. [2020-07-20 17:29:32,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-07-20 17:29:32,165 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:32,165 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:32,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:32,381 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:32,382 INFO L82 PathProgramCache]: Analyzing trace with hash -467387859, now seen corresponding path program 1 times [2020-07-20 17:29:32,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:32,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058651929] [2020-07-20 17:29:32,384 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:32,565 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:32,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:32,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-20 17:29:32,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:32,596 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:29:32,597 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:29:32,598 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:32,600 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:29:32,602 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,603 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,605 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,608 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:32,609 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:29:32,610 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:29:32,612 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,614 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,615 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,616 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:32,618 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,620 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,621 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,623 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:32,625 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:29:32,626 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:32,627 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,629 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:32,630 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,631 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,633 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:29:32,634 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:29:47,369 WARN L193 SmtUtils]: Spent 14.66 s on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2020-07-20 17:29:47,407 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 17:29:47,519 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 17:29:47,521 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:29:47,522 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:29:47,550 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:29:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-20 17:29:47,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:29:47,863 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:29:47,864 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:47,866 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:47,867 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:29:47,887 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:47,887 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:29:47,999 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:48,001 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:48,002 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:48,003 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:48,004 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:29:48,005 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:29:48,005 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:29:48,006 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:29:48,007 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:29:48,008 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:29:48,009 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:29:48,009 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:29:48,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058651929] [2020-07-20 17:29:48,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-20 17:29:48,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-20 17:29:48,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448522181] [2020-07-20 17:29:48,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 17:29:48,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:48,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 17:29:48,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-20 17:29:48,118 INFO L87 Difference]: Start difference. First operand 1927 states and 2194 transitions. Second operand 8 states. [2020-07-20 17:29:52,009 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-07-20 17:32:54,580 WARN L193 SmtUtils]: Spent 19.01 s on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-07-20 17:33:18,927 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-07-20 17:33:25,755 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-20 17:34:20,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:34:20,036 INFO L93 Difference]: Finished difference Result 4895 states and 5728 transitions. [2020-07-20 17:34:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 17:34:20,047 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 372 [2020-07-20 17:34:20,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:34:20,060 INFO L225 Difference]: With dead ends: 4895 [2020-07-20 17:34:20,061 INFO L226 Difference]: Without dead ends: 3117 [2020-07-20 17:34:20,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 39.1s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-20 17:34:20,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2020-07-20 17:34:20,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 2962. [2020-07-20 17:34:20,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2962 states. [2020-07-20 17:34:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 3385 transitions. [2020-07-20 17:34:20,218 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 3385 transitions. Word has length 372 [2020-07-20 17:34:20,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:34:20,219 INFO L479 AbstractCegarLoop]: Abstraction has 2962 states and 3385 transitions. [2020-07-20 17:34:20,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 17:34:20,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 3385 transitions. [2020-07-20 17:34:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-07-20 17:34:20,231 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:34:20,233 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:34:20,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:34:20,448 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:34:20,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:34:20,448 INFO L82 PathProgramCache]: Analyzing trace with hash -145294626, now seen corresponding path program 1 times [2020-07-20 17:34:20,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:34:20,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645211323] [2020-07-20 17:34:20,449 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:34:20,670 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:34:20,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:34:20,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 17:34:20,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:34:20,775 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:34:20,776 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:34:20,777 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,777 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:34:20,778 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:34:20,779 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-20 17:34:20,780 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,781 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:34:20,782 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:34:20,783 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,783 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:34:20,784 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:34:20,785 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:34:20,786 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-20 17:34:20,787 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:34:20,787 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,788 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,788 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,790 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,791 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,791 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,793 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:34:20,794 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:34:20,794 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:34:20,795 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:34:54,682 WARN L193 SmtUtils]: Spent 27.68 s on a formula simplification. DAG size of input: 82 DAG size of output: 46 [2020-07-20 17:35:00,849 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-20 17:35:05,395 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2020-07-20 17:35:05,632 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:35:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 351 proven. 13 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-20 17:35:05,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:35:06,236 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2020-07-20 17:35:06,316 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-20 17:35:06,316 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:35:06,819 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-07-20 17:35:06,820 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:35:06,820 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-07-20 17:35:06,821 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:35:06,821 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-07-20 17:35:06,822 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:35:06,822 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:35:06,823 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:35:06,823 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:35:06,824 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:35:06,824 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:35:06,825 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:35:06,826 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:35:06,826 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:35:06,827 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:35:06,828 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:35:06,829 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:35:06,829 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:35:06,830 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 17:35:06,831 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 17:35:06,832 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:35:06,832 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:35:06,833 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 17:35:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 17:35:07,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645211323] [2020-07-20 17:35:07,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:35:07,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-20 17:35:07,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404047314] [2020-07-20 17:35:07,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 17:35:07,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:35:07,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 17:35:07,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=97, Unknown=5, NotChecked=0, Total=132 [2020-07-20 17:35:07,242 INFO L87 Difference]: Start difference. First operand 2962 states and 3385 transitions. Second operand 12 states. [2020-07-20 17:35:52,225 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2020-07-20 17:36:23,944 WARN L193 SmtUtils]: Spent 28.50 s on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-07-20 17:36:46,850 WARN L193 SmtUtils]: Spent 18.47 s on a formula simplification. DAG size of input: 69 DAG size of output: 32 [2020-07-20 17:36:59,986 WARN L193 SmtUtils]: Spent 8.38 s on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-20 17:37:02,263 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 34 [2020-07-20 17:37:19,720 WARN L193 SmtUtils]: Spent 8.23 s on a formula simplification that was a NOOP. DAG size: 53 [2020-07-20 17:37:45,123 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2020-07-20 17:38:05,841 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2020-07-20 17:39:48,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:39:48,640 INFO L93 Difference]: Finished difference Result 8119 states and 9457 transitions. [2020-07-20 17:39:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-20 17:39:48,664 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 391 [2020-07-20 17:39:48,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:39:48,689 INFO L225 Difference]: With dead ends: 8119 [2020-07-20 17:39:48,690 INFO L226 Difference]: Without dead ends: 5306 [2020-07-20 17:39:48,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 784 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 139.6s TimeCoverageRelationStatistics Valid=179, Invalid=737, Unknown=14, NotChecked=0, Total=930 [2020-07-20 17:39:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5306 states. [2020-07-20 17:39:48,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5306 to 4710. [2020-07-20 17:39:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4710 states. [2020-07-20 17:39:48,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4710 states to 4710 states and 5386 transitions. [2020-07-20 17:39:48,855 INFO L78 Accepts]: Start accepts. Automaton has 4710 states and 5386 transitions. Word has length 391 [2020-07-20 17:39:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:39:48,856 INFO L479 AbstractCegarLoop]: Abstraction has 4710 states and 5386 transitions. [2020-07-20 17:39:48,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 17:39:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 4710 states and 5386 transitions. [2020-07-20 17:39:48,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-07-20 17:39:48,871 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:39:48,872 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:39:49,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:39:49,079 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:39:49,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:39:49,079 INFO L82 PathProgramCache]: Analyzing trace with hash 2055103018, now seen corresponding path program 1 times [2020-07-20 17:39:49,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:39:49,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913025507] [2020-07-20 17:39:49,080 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:39:49,280 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:39:49,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:39:49,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:39:49,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:39:49,315 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:39:49,317 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:39:49,317 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:39:49,318 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:39:49,320 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:39:49,321 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 17:39:49,322 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:39:49,322 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:39:49,324 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:39:49,325 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:39:49,325 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:39:49,326 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:39:49,327 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:39:49,328 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:39:49,329 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:39:49,338 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:39:49,339 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:39:49,341 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:39:49,341 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:39:49,342 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:39:49,344 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:39:49,345 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:39:49,346 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:39:50,346 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 22 [2020-07-20 17:39:50,671 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-07-20 17:39:50,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:39:50,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913025507] [2020-07-20 17:39:50,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:39:50,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:39:50,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78909041] [2020-07-20 17:39:50,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:39:50,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:39:50,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:39:50,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:39:50,675 INFO L87 Difference]: Start difference. First operand 4710 states and 5386 transitions. Second operand 3 states. [2020-07-20 17:40:07,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:40:07,452 INFO L93 Difference]: Finished difference Result 4855 states and 5560 transitions. [2020-07-20 17:40:07,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:40:07,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 401 [2020-07-20 17:40:07,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:40:07,464 INFO L225 Difference]: With dead ends: 4855 [2020-07-20 17:40:07,465 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:40:07,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:40:07,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:40:07,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:40:07,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:40:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:40:07,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 401 [2020-07-20 17:40:07,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:40:07,475 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:40:07,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:40:07,475 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:40:07,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:40:07,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:40:07,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:40:09,156 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 142 [2020-07-20 17:40:09,304 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 142 [2020-07-20 17:40:09,632 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 12 [2020-07-20 17:40:10,473 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 25 [2020-07-20 17:40:51,838 WARN L193 SmtUtils]: Spent 41.35 s on a formula simplification. DAG size of input: 258 DAG size of output: 100 [2020-07-20 17:40:51,976 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2020-07-20 17:40:55,522 WARN L193 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 154 DAG size of output: 57 [2020-07-20 17:40:58,957 WARN L193 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 154 DAG size of output: 57 [2020-07-20 17:40:58,963 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:40:58,964 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-20 17:40:58,964 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:40:58,964 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 17:40:58,964 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,964 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,965 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,965 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,965 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,965 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,965 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 17:40:58,965 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 17:40:58,965 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 17:40:58,965 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 17:40:58,965 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 17:40:58,966 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 17:40:58,966 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 17:40:58,966 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 17:40:58,966 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 17:40:58,966 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 17:40:58,966 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 17:40:58,966 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,966 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,966 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,967 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,967 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,967 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 17:40:58,967 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 17:40:58,967 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 17:40:58,967 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 17:40:58,967 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 17:40:58,967 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 17:40:58,967 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 17:40:58,968 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 17:40:58,968 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 17:40:58,968 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 17:40:58,968 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 17:40:58,968 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 17:40:58,968 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 17:40:58,968 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2020-07-20 17:40:58,968 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 17:40:58,968 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,969 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,969 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,969 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,969 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,969 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 17:40:58,969 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 17:40:58,969 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 17:40:58,969 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 17:40:58,970 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 17:40:58,970 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 17:40:58,970 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 17:40:58,970 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 17:40:58,970 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 17:40:58,970 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 17:40:58,970 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,970 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,970 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,971 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,971 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,971 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 17:40:58,971 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 17:40:58,971 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 17:40:58,971 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 17:40:58,971 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 17:40:58,971 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 17:40:58,972 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 17:40:58,972 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 17:40:58,972 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 17:40:58,972 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 17:40:58,972 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 17:40:58,972 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 17:40:58,972 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 17:40:58,972 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,972 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,973 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,973 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,973 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,973 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 17:40:58,973 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 17:40:58,973 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 17:40:58,973 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 17:40:58,973 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,974 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 17:40:58,975 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 17:40:58,976 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 17:40:58,977 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 17:40:58,978 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse13 (<= 9 ~a19~0)) (.cse6 (<= |old(~a10~0)| ~a10~0)) (.cse7 (= ~a1~0 |old(~a1~0)|)) (.cse15 (< ~a19~0 10))) (let ((.cse0 (not (<= 4 |old(~a10~0)|))) (.cse2 (<= ~a19~0 |old(~a19~0)|)) (.cse1 (not (<= |old(~a19~0)| 8))) (.cse11 (<= ~a10~0 0)) (.cse12 (not (<= |old(~a10~0)| 0))) (.cse14 (not (<= |old(~a10~0)| 1))) (.cse5 (and .cse13 .cse6 .cse7 .cse15)) (.cse18 (not (<= |old(~a1~0)| 218))) (.cse3 (not (< |old(~a19~0)| 10))) (.cse16 (<= ~a10~0 2)) (.cse4 (not (<= 9 |old(~a19~0)|))) (.cse10 (not (<= 2 |old(~a10~0)|))) (.cse17 (not (<= |old(~a10~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 (<= 4 ~a10~0))) (or (not (<= 23 (div (+ |old(~a1~0)| (- 517989)) 5))) .cse3 .cse4 .cse5) (or (and .cse6 .cse2 .cse7) .cse1 (forall ((v_~a1~0_428 Int)) (let ((.cse9 (mod v_~a1~0_428 25))) (let ((.cse8 (* 5 .cse9))) (or (not (<= 0 (+ .cse8 60))) (not (<= 0 v_~a1~0_428)) (not (<= 65 .cse8)) (not (<= |old(~a1~0)| (+ (mod (+ (* .cse9 5) 10) 25) 13))))))) .cse10 (not (< 0 (+ |old(~a1~0)| 13)))) (or .cse11 .cse3 .cse12) (or .cse4 (and .cse13 .cse6 .cse2 .cse7) .cse14) (or (not (<= |old(~a1~0)| 23)) .cse1 (and (<= ~a1~0 23) .cse2)) (or .cse0 .cse3 .cse4 (and .cse13 .cse6 .cse15 .cse7)) (or (and .cse16 .cse2) .cse1 .cse17) (or .cse11 .cse12 .cse18) (or (<= ~a10~0 1) .cse14) (or .cse3 .cse4 .cse5 .cse18) (or .cse3 (and .cse13 .cse16 (<= 2 ~a10~0) .cse15 .cse7) .cse4 .cse10 .cse17)))) [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 17:40:58,979 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,980 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 17:40:58,981 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 17:40:58,982 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 17:40:58,983 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 17:40:58,983 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 17:40:58,983 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 17:40:58,983 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 17:40:58,983 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 17:40:58,983 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 17:40:58,983 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:40:58,983 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (= 23 ~a1~0) (< ~a19~0 10)) [2020-07-20 17:40:58,983 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:40:58,983 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:40:58,983 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|) (< ~a19~0 10)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|))) [2020-07-20 17:40:58,983 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 17:40:58,984 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (<= 9 ~a19~0)) (.cse0 (< ~a19~0 10))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (and (<= 4 ~a10~0) .cse0) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and (<= ~a10~0 2) .cse0) (not (<= 9 |old(~a19~0)|)) (and .cse1 (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse0) (and (exists ((v_~a1~0_428 Int)) (let ((.cse3 (mod v_~a1~0_428 25))) (let ((.cse2 (* 5 .cse3))) (and (<= 0 (+ .cse2 60)) (<= 65 .cse2) (<= ~a1~0 (+ (mod (+ (* .cse3 5) 10) 25) 13)) (<= 0 v_~a1~0_428))))) .cse0) (and .cse1 (<= ~a1~0 218) .cse0))) [2020-07-20 17:40:58,984 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 17:40:58,984 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 17:40:58,984 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (<= 9 ~a19~0)) (.cse0 (< ~a19~0 10))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (and (<= 4 ~a10~0) .cse0) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and (<= ~a10~0 2) .cse0) (not (<= 9 |old(~a19~0)|)) (and .cse1 (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse0) (and (exists ((v_~a1~0_428 Int)) (let ((.cse3 (mod v_~a1~0_428 25))) (let ((.cse2 (* 5 .cse3))) (and (<= 0 (+ .cse2 60)) (<= 65 .cse2) (<= ~a1~0 (+ (mod (+ (* .cse3 5) 10) 25) 13)) (<= 0 v_~a1~0_428))))) .cse0) (and .cse1 (<= ~a1~0 218) .cse0))) [2020-07-20 17:40:58,984 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 17:40:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:58,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:58,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:58,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,007 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,007 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,007 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,008 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:40:59 BoogieIcfgContainer [2020-07-20 17:40:59,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:40:59,021 INFO L168 Benchmark]: Toolchain (without parser) took 702259.94 ms. Allocated memory was 141.0 MB in the beginning and 477.6 MB in the end (delta: 336.6 MB). Free memory was 97.5 MB in the beginning and 175.3 MB in the end (delta: -77.8 MB). Peak memory consumption was 390.1 MB. Max. memory is 7.1 GB. [2020-07-20 17:40:59,021 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 117.3 MB in the beginning and 117.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 17:40:59,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.18 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 97.0 MB in the beginning and 168.4 MB in the end (delta: -71.4 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-07-20 17:40:59,027 INFO L168 Benchmark]: Boogie Preprocessor took 120.25 ms. Allocated memory is still 201.9 MB. Free memory was 168.4 MB in the beginning and 163.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:40:59,028 INFO L168 Benchmark]: RCFGBuilder took 1467.47 ms. Allocated memory was 201.9 MB in the beginning and 227.0 MB in the end (delta: 25.2 MB). Free memory was 163.1 MB in the beginning and 179.9 MB in the end (delta: -16.8 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:40:59,031 INFO L168 Benchmark]: TraceAbstraction took 699903.04 ms. Allocated memory was 227.0 MB in the beginning and 477.6 MB in the end (delta: 250.6 MB). Free memory was 178.4 MB in the beginning and 175.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 385.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:40:59,038 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 141.0 MB. Free memory was 117.3 MB in the beginning and 117.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.18 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 97.0 MB in the beginning and 168.4 MB in the end (delta: -71.4 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.25 ms. Allocated memory is still 201.9 MB. Free memory was 168.4 MB in the beginning and 163.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1467.47 ms. Allocated memory was 201.9 MB in the beginning and 227.0 MB in the end (delta: 25.2 MB). Free memory was 163.1 MB in the beginning and 179.9 MB in the end (delta: -16.8 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 699903.04 ms. Allocated memory was 227.0 MB in the beginning and 477.6 MB in the end (delta: 250.6 MB). Free memory was 178.4 MB in the beginning and 175.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 385.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant [2020-07-20 17:40:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] [2020-07-20 17:40:59,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_428,QUANTIFIED] Derived loop invariant: ((((((((a10 <= 1 || !(\old(a19) < 10)) || (4 <= a10 && a19 < 10)) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || (a10 <= 2 && a19 < 10)) || !(9 <= \old(a19))) || ((9 <= a19 && 23 <= (a1 + -517989) / 5) && a19 < 10)) || ((\exists v_~a1~0_428 : int :: ((0 <= 5 * (v_~a1~0_428 % 25) + 60 && 65 <= 5 * (v_~a1~0_428 % 25)) && a1 <= (v_~a1~0_428 % 25 * 5 + 10) % 25 + 13) && 0 <= v_~a1~0_428) && a19 < 10)) || ((9 <= a19 && a1 <= 218) && a19 < 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 648.4s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 578.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 51.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 678 SDtfs, 3730 SDslu, 505 SDs, 0 SdLazy, 10426 SolverSat, 1270 SolverUnsat, 173 SolverUnknown, 0 SolverNotchecked, 419.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4158 GetRequests, 4072 SyntacticMatches, 8 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 180.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4710occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1109 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 140 PreInvPairs, 228 NumberOfFragments, 530 HoareAnnotationTreeSize, 140 FomulaSimplifications, 5483 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7865 FormulaSimplificationTreeSizeReductionInter, 49.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 64.7s InterpolantComputationTime, 2925 NumberOfCodeBlocks, 2925 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 3841 ConstructedInterpolants, 69 QuantifiedInterpolants, 4081281 SizeOfPredicates, 20 NumberOfNonLiveVariables, 4962 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 3486/3586 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...