/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:56:06,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:56:06,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:56:06,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 22:56:06,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:56:06,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:56:06,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:56:06,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:56:06,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:56:06,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:56:06,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:56:06,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:56:06,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:56:06,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:56:06,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:56:06,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:56:06,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:56:06,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:56:06,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:56:06,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:56:06,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:56:06,596 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:56:06,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:56:06,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:56:06,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:56:06,598 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:56:06,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:56:06,598 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:56:06,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:56:06,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:56:06,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:56:06,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:56:06,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:56:06,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:56:06,600 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:56:06,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:56:06,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:56:06,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:56:06,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:56:06,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:56:06,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:56:06,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:56:06,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:56:06,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:56:06,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:56:06,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:56:06,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:56:06,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:06,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:56:06,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:56:06,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:56:06,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:56:06,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:56:06,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:56:06,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:56:06,912 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:56:06,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-21 22:56:06,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8809238e9/4a5ebbed92b24339b3fee00eba94753b/FLAG13800a065 [2020-07-21 22:56:07,544 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:56:07,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-21 22:56:07,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8809238e9/4a5ebbed92b24339b3fee00eba94753b/FLAG13800a065 [2020-07-21 22:56:07,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8809238e9/4a5ebbed92b24339b3fee00eba94753b [2020-07-21 22:56:07,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:56:07,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:56:07,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:56:07,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:56:07,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:56:07,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:56:07" (1/1) ... [2020-07-21 22:56:07,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e10ba91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:07, skipping insertion in model container [2020-07-21 22:56:07,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:56:07" (1/1) ... [2020-07-21 22:56:07,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:56:07,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:56:08,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:56:08,398 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:56:08,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:56:08,537 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:56:08,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08 WrapperNode [2020-07-21 22:56:08,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:56:08,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:56:08,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:56:08,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:56:08,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08" (1/1) ... [2020-07-21 22:56:08,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08" (1/1) ... [2020-07-21 22:56:08,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08" (1/1) ... [2020-07-21 22:56:08,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08" (1/1) ... [2020-07-21 22:56:08,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08" (1/1) ... [2020-07-21 22:56:08,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08" (1/1) ... [2020-07-21 22:56:08,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08" (1/1) ... [2020-07-21 22:56:08,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:56:08,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:56:08,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:56:08,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:56:08,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:56:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:56:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:56:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:56:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:56:08,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:56:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:56:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:56:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:56:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:56:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:56:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:56:10,189 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:56:10,189 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:56:10,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:56:10 BoogieIcfgContainer [2020-07-21 22:56:10,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:56:10,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:56:10,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:56:10,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:56:10,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:56:07" (1/3) ... [2020-07-21 22:56:10,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607a0da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:56:10, skipping insertion in model container [2020-07-21 22:56:10,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:08" (2/3) ... [2020-07-21 22:56:10,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607a0da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:56:10, skipping insertion in model container [2020-07-21 22:56:10,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:56:10" (3/3) ... [2020-07-21 22:56:10,206 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label33.c [2020-07-21 22:56:10,220 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:56:10,229 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:56:10,244 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:56:10,273 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:56:10,273 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:56:10,273 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:56:10,274 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:56:10,274 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:56:10,274 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:56:10,274 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:56:10,275 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:56:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:56:10,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 22:56:10,348 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:10,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:10,350 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:10,361 INFO L82 PathProgramCache]: Analyzing trace with hash -421614983, now seen corresponding path program 1 times [2020-07-21 22:56:10,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:10,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067168205] [2020-07-21 22:56:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:10,562 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:10,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:10,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:56:10,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:11,128 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:56:11,133 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:56:11,134 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:56:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:11,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:11,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067168205] [2020-07-21 22:56:11,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:11,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:56:11,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549207087] [2020-07-21 22:56:11,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:56:11,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:11,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:56:11,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:56:11,286 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:56:12,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:12,801 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:56:12,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:56:12,803 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 147 [2020-07-21 22:56:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:12,817 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:56:12,817 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:56:12,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:56:12,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:56:12,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:56:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:56:12,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:56:12,890 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 147 [2020-07-21 22:56:12,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:12,891 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:56:12,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:56:12,892 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:56:12,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 22:56:12,901 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:12,901 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:13,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:13,116 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:13,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:13,117 INFO L82 PathProgramCache]: Analyzing trace with hash -2031927832, now seen corresponding path program 1 times [2020-07-21 22:56:13,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:13,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413074411] [2020-07-21 22:56:13,118 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:13,241 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:13,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:13,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:56:13,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:13,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:13,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:14,383 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:56:14,385 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:56:14,386 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:56:14,387 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:14,388 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:14,425 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:56:14,426 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:14,475 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:14,540 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:14,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413074411] [2020-07-21 22:56:14,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:14,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:56:14,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213561441] [2020-07-21 22:56:14,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:56:14,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:14,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:56:14,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:56:14,674 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:56:15,982 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:56:17,356 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:56:17,588 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-07-21 22:56:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:19,341 INFO L93 Difference]: Finished difference Result 740 states and 1084 transitions. [2020-07-21 22:56:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:56:19,342 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 156 [2020-07-21 22:56:19,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:19,348 INFO L225 Difference]: With dead ends: 740 [2020-07-21 22:56:19,349 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 22:56:19,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 289 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 22:56:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 22:56:19,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 393. [2020-07-21 22:56:19,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:56:19,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 534 transitions. [2020-07-21 22:56:19,397 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 534 transitions. Word has length 156 [2020-07-21 22:56:19,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:19,398 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 534 transitions. [2020-07-21 22:56:19,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:56:19,398 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 534 transitions. [2020-07-21 22:56:19,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-21 22:56:19,403 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:19,403 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:19,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:19,604 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:19,605 INFO L82 PathProgramCache]: Analyzing trace with hash -301456272, now seen corresponding path program 1 times [2020-07-21 22:56:19,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:19,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235895833] [2020-07-21 22:56:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:19,714 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:19,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:19,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-21 22:56:19,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:20,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:20,927 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 22:56:20,928 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 22:56:20,930 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 22:56:20,931 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:56:20,932 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:20,957 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 5, 1] term [2020-07-21 22:56:20,958 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:21,006 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:21,090 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:21,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235895833] [2020-07-21 22:56:21,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:21,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:56:21,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060495971] [2020-07-21 22:56:21,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:56:21,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:21,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:56:21,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:56:21,234 INFO L87 Difference]: Start difference. First operand 393 states and 534 transitions. Second operand 21 states. [2020-07-21 22:56:22,325 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-07-21 22:56:24,033 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 22:56:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:24,661 INFO L93 Difference]: Finished difference Result 902 states and 1244 transitions. [2020-07-21 22:56:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-21 22:56:24,662 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 160 [2020-07-21 22:56:24,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:24,667 INFO L225 Difference]: With dead ends: 902 [2020-07-21 22:56:24,667 INFO L226 Difference]: Without dead ends: 515 [2020-07-21 22:56:24,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 297 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=423, Invalid=1059, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 22:56:24,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-07-21 22:56:24,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 478. [2020-07-21 22:56:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 22:56:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 623 transitions. [2020-07-21 22:56:24,694 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 623 transitions. Word has length 160 [2020-07-21 22:56:24,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:24,695 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 623 transitions. [2020-07-21 22:56:24,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:56:24,695 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 623 transitions. [2020-07-21 22:56:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 22:56:24,699 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:24,699 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:24,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:24,915 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:24,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:24,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1326673688, now seen corresponding path program 1 times [2020-07-21 22:56:24,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:24,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808574481] [2020-07-21 22:56:24,918 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:25,053 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:25,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:25,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-21 22:56:25,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:25,099 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:56:25,100 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:56:25,100 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:56:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:56:25,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:25,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808574481] [2020-07-21 22:56:25,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:25,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 22:56:25,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178106897] [2020-07-21 22:56:25,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 22:56:25,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:25,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 22:56:25,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 22:56:25,189 INFO L87 Difference]: Start difference. First operand 478 states and 623 transitions. Second operand 4 states. [2020-07-21 22:56:26,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:26,001 INFO L93 Difference]: Finished difference Result 1039 states and 1410 transitions. [2020-07-21 22:56:26,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 22:56:26,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2020-07-21 22:56:26,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:26,007 INFO L225 Difference]: With dead ends: 1039 [2020-07-21 22:56:26,007 INFO L226 Difference]: Without dead ends: 478 [2020-07-21 22:56:26,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 22:56:26,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-07-21 22:56:26,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2020-07-21 22:56:26,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 22:56:26,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 620 transitions. [2020-07-21 22:56:26,035 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 620 transitions. Word has length 182 [2020-07-21 22:56:26,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:26,035 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 620 transitions. [2020-07-21 22:56:26,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 22:56:26,036 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 620 transitions. [2020-07-21 22:56:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 22:56:26,039 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:26,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:26,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:26,253 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:26,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:26,253 INFO L82 PathProgramCache]: Analyzing trace with hash -24780807, now seen corresponding path program 1 times [2020-07-21 22:56:26,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:26,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350630439] [2020-07-21 22:56:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:26,363 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:26,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:26,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:56:26,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:26,789 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 33 [2020-07-21 22:56:26,935 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-07-21 22:56:26,943 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 6, 2, 2, 1] term [2020-07-21 22:56:26,943 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-07-21 22:56:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:27,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:27,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350630439] [2020-07-21 22:56:27,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:27,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-21 22:56:27,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053067216] [2020-07-21 22:56:27,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 22:56:27,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:27,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 22:56:27,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:56:27,171 INFO L87 Difference]: Start difference. First operand 478 states and 620 transitions. Second operand 12 states. [2020-07-21 22:56:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:29,791 INFO L93 Difference]: Finished difference Result 1222 states and 1718 transitions. [2020-07-21 22:56:29,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 22:56:29,792 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 181 [2020-07-21 22:56:29,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:29,796 INFO L225 Difference]: With dead ends: 1222 [2020-07-21 22:56:29,796 INFO L226 Difference]: Without dead ends: 644 [2020-07-21 22:56:29,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:56:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-21 22:56:29,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 640. [2020-07-21 22:56:29,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-07-21 22:56:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 787 transitions. [2020-07-21 22:56:29,818 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 787 transitions. Word has length 181 [2020-07-21 22:56:29,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:29,819 INFO L479 AbstractCegarLoop]: Abstraction has 640 states and 787 transitions. [2020-07-21 22:56:29,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 22:56:29,819 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 787 transitions. [2020-07-21 22:56:29,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 22:56:29,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:29,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:30,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:30,036 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:30,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:30,037 INFO L82 PathProgramCache]: Analyzing trace with hash 347236579, now seen corresponding path program 1 times [2020-07-21 22:56:30,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:30,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364827840] [2020-07-21 22:56:30,038 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:30,145 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:30,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:30,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-21 22:56:30,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:30,784 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-07-21 22:56:31,067 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-07-21 22:56:31,246 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-07-21 22:56:31,417 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-07-21 22:56:31,581 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-07-21 22:56:31,584 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 6, 2, 2, 1] term [2020-07-21 22:56:31,584 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-07-21 22:56:31,882 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:31,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:32,125 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2020-07-21 22:56:32,269 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2020-07-21 22:56:32,427 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2020-07-21 22:56:32,613 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2020-07-21 22:56:32,981 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-07-21 22:56:33,231 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2020-07-21 22:56:33,519 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-07-21 22:56:33,526 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:56:33,527 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 22:56:33,529 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:56:33,530 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:33,530 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 2, 2, 1] term [2020-07-21 22:56:33,531 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,532 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 2, 2, 1] term [2020-07-21 22:56:33,533 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,533 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:56:33,534 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:33,535 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,536 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,537 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,538 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:56:33,539 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,540 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,541 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,543 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:56:33,544 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:33,545 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 2, 2, 1] term [2020-07-21 22:56:33,545 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,546 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 2, 2, 1] term [2020-07-21 22:56:33,547 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,548 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:56:33,548 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:33,549 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,550 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,551 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,552 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:56:33,553 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,554 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,555 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,559 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,560 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:33,561 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,562 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:33,562 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,563 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,564 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:33,566 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,567 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:33,568 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,569 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,570 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:33,571 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,572 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,573 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:33,574 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,575 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,577 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,578 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:56:33,578 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:33,579 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,581 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:33,582 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,582 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,584 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:33,585 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,586 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:33,587 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,588 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,589 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:33,590 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,591 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:33,592 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:33,593 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,594 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,596 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:56:33,597 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:56:33,597 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:33,598 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,600 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:56:33,601 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:56:33,602 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:33,602 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:33,673 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 5, 5, 1] term [2020-07-21 22:56:33,674 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:33,982 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:33,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364827840] [2020-07-21 22:56:33,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:56:33,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [20] total 31 [2020-07-21 22:56:33,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732320983] [2020-07-21 22:56:33,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-21 22:56:33,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:33,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-21 22:56:33,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=643, Unknown=0, NotChecked=0, Total=930 [2020-07-21 22:56:33,985 INFO L87 Difference]: Start difference. First operand 640 states and 787 transitions. Second operand 20 states. [2020-07-21 22:56:34,699 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-07-21 22:56:35,046 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-07-21 22:56:35,545 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-07-21 22:56:35,776 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-07-21 22:56:36,043 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-07-21 22:56:36,637 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-07-21 22:56:37,714 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-07-21 22:56:38,009 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-07-21 22:56:38,208 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-07-21 22:56:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:39,668 INFO L93 Difference]: Finished difference Result 1913 states and 2570 transitions. [2020-07-21 22:56:39,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-21 22:56:39,668 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 198 [2020-07-21 22:56:39,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:39,674 INFO L225 Difference]: With dead ends: 1913 [2020-07-21 22:56:39,674 INFO L226 Difference]: Without dead ends: 1084 [2020-07-21 22:56:39,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 364 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=678, Invalid=1484, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 22:56:39,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-07-21 22:56:39,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1029. [2020-07-21 22:56:39,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1029 states. [2020-07-21 22:56:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1252 transitions. [2020-07-21 22:56:39,710 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1252 transitions. Word has length 198 [2020-07-21 22:56:39,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:39,710 INFO L479 AbstractCegarLoop]: Abstraction has 1029 states and 1252 transitions. [2020-07-21 22:56:39,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-21 22:56:39,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1252 transitions. [2020-07-21 22:56:39,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-07-21 22:56:39,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:39,715 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:39,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:39,930 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:39,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:39,931 INFO L82 PathProgramCache]: Analyzing trace with hash 679246211, now seen corresponding path program 1 times [2020-07-21 22:56:39,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:39,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031622116] [2020-07-21 22:56:39,932 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:40,040 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:40,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:40,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:40,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:40,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:40,196 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:40,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031622116] [2020-07-21 22:56:40,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:40,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:40,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854515279] [2020-07-21 22:56:40,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:40,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:40,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:40,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:40,199 INFO L87 Difference]: Start difference. First operand 1029 states and 1252 transitions. Second operand 7 states. [2020-07-21 22:56:41,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:41,822 INFO L93 Difference]: Finished difference Result 3134 states and 4061 transitions. [2020-07-21 22:56:41,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:56:41,833 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-07-21 22:56:41,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:41,844 INFO L225 Difference]: With dead ends: 3134 [2020-07-21 22:56:41,844 INFO L226 Difference]: Without dead ends: 2111 [2020-07-21 22:56:41,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 459 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:56:41,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2020-07-21 22:56:41,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 2084. [2020-07-21 22:56:41,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2020-07-21 22:56:41,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2613 transitions. [2020-07-21 22:56:41,907 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2613 transitions. Word has length 232 [2020-07-21 22:56:41,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:41,907 INFO L479 AbstractCegarLoop]: Abstraction has 2084 states and 2613 transitions. [2020-07-21 22:56:41,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:41,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2613 transitions. [2020-07-21 22:56:41,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 22:56:41,916 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:41,916 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:42,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:42,130 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:42,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:42,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1550239891, now seen corresponding path program 1 times [2020-07-21 22:56:42,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:42,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911355242] [2020-07-21 22:56:42,132 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:42,249 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:42,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:42,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-21 22:56:42,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:42,848 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:56:42,848 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:56:42,848 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:56:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 22:56:42,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:43,328 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 29 [2020-07-21 22:56:43,698 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-07-21 22:56:43,704 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 22:56:43,705 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 22:56:43,706 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 22:56:43,706 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:56:43,707 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:43,709 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:56:43,710 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:56:43,710 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:56:43,711 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:56:43,712 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:43,712 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 3 conjuncts [2020-07-21 22:56:43,713 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:43,714 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 3 conjuncts [2020-07-21 22:56:43,715 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:43,716 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 3 conjuncts [2020-07-21 22:56:43,717 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:43,718 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 3 conjuncts [2020-07-21 22:56:43,718 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:44,134 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 31 [2020-07-21 22:56:44,136 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 5, 1] term [2020-07-21 22:56:44,136 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:44,192 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:56:44,193 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:56:44,246 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:44,287 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:44,314 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 22:56:44,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911355242] [2020-07-21 22:56:44,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:44,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 23 [2020-07-21 22:56:44,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423725053] [2020-07-21 22:56:44,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-21 22:56:44,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:44,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-21 22:56:44,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2020-07-21 22:56:44,514 INFO L87 Difference]: Start difference. First operand 2084 states and 2613 transitions. Second operand 23 states. [2020-07-21 22:56:46,103 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-07-21 22:56:46,283 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-07-21 22:56:46,851 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-07-21 22:56:47,019 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-07-21 22:56:47,376 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 22:56:47,801 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2020-07-21 22:56:49,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:49,218 INFO L93 Difference]: Finished difference Result 4301 states and 5476 transitions. [2020-07-21 22:56:49,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-21 22:56:49,224 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 240 [2020-07-21 22:56:49,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:49,235 INFO L225 Difference]: With dead ends: 4301 [2020-07-21 22:56:49,235 INFO L226 Difference]: Without dead ends: 2223 [2020-07-21 22:56:49,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 452 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=482, Invalid=1498, Unknown=0, NotChecked=0, Total=1980 [2020-07-21 22:56:49,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2020-07-21 22:56:49,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2167. [2020-07-21 22:56:49,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2167 states. [2020-07-21 22:56:49,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 2708 transitions. [2020-07-21 22:56:49,305 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 2708 transitions. Word has length 240 [2020-07-21 22:56:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:49,305 INFO L479 AbstractCegarLoop]: Abstraction has 2167 states and 2708 transitions. [2020-07-21 22:56:49,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-21 22:56:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 2708 transitions. [2020-07-21 22:56:49,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-21 22:56:49,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:49,313 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:49,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:49,528 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:49,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:49,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1449891231, now seen corresponding path program 1 times [2020-07-21 22:56:49,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:49,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171624319] [2020-07-21 22:56:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:49,665 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:56:49,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:49,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:56:49,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 22:56:49,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:49,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171624319] [2020-07-21 22:56:49,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:49,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:56:49,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524090576] [2020-07-21 22:56:49,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:56:49,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:49,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:56:49,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:49,740 INFO L87 Difference]: Start difference. First operand 2167 states and 2708 transitions. Second operand 3 states. [2020-07-21 22:56:50,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:50,535 INFO L93 Difference]: Finished difference Result 3971 states and 5002 transitions. [2020-07-21 22:56:50,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:56:50,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-07-21 22:56:50,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:50,544 INFO L225 Difference]: With dead ends: 3971 [2020-07-21 22:56:50,544 INFO L226 Difference]: Without dead ends: 1516 [2020-07-21 22:56:50,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-07-21 22:56:50,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1370. [2020-07-21 22:56:50,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1370 states. [2020-07-21 22:56:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1574 transitions. [2020-07-21 22:56:50,589 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1574 transitions. Word has length 253 [2020-07-21 22:56:50,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:50,589 INFO L479 AbstractCegarLoop]: Abstraction has 1370 states and 1574 transitions. [2020-07-21 22:56:50,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:56:50,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1574 transitions. [2020-07-21 22:56:50,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-07-21 22:56:50,596 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:50,596 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:50,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:50,812 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:50,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:50,813 INFO L82 PathProgramCache]: Analyzing trace with hash -975607092, now seen corresponding path program 1 times [2020-07-21 22:56:50,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:50,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203634590] [2020-07-21 22:56:50,814 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:50,951 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:50,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:50,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:50,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:51,032 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 22:56:51,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:51,123 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 22:56:51,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203634590] [2020-07-21 22:56:51,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:51,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:51,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566838649] [2020-07-21 22:56:51,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:51,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:51,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:51,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:51,125 INFO L87 Difference]: Start difference. First operand 1370 states and 1574 transitions. Second operand 7 states. [2020-07-21 22:56:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:52,043 INFO L93 Difference]: Finished difference Result 2399 states and 2707 transitions. [2020-07-21 22:56:52,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:56:52,044 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 268 [2020-07-21 22:56:52,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:52,045 INFO L225 Difference]: With dead ends: 2399 [2020-07-21 22:56:52,045 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:56:52,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 531 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:56:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:56:52,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:56:52,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:56:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:56:52,051 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 268 [2020-07-21 22:56:52,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:52,051 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:56:52,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:56:52,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:56:52,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:52,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:56:53,870 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 138 DAG size of output: 114 [2020-07-21 22:56:54,198 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-07-21 22:56:54,634 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2020-07-21 22:56:54,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:56:54,638 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (let ((.cse0 (not (= 1 ~a21~0)))) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (not (= 1 |old(~a19~0)|)) (and (= 1 ~a19~0) (= 8 ~a17~0)) (not (= 8 |old(~a17~0)|)) .cse0) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse0))) [2020-07-21 22:56:54,638 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:56:54,638 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,638 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,638 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,638 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,639 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,639 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:56:54,639 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:56:54,639 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:56:54,639 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:56:54,640 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:56:54,640 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:56:54,640 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:56:54,640 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:56:54,640 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:56:54,640 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:56:54,641 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:56:54,641 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:56:54,641 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:56:54,641 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,641 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,641 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,641 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,641 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:56:54,641 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,642 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:56:54,642 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:56:54,642 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:56:54,642 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:56:54,642 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:56:54,642 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:56:54,642 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:56:54,642 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:56:54,643 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:56:54,643 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:56:54,643 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:56:54,643 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:56:54,643 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:56:54,643 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:56:54,643 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:56:54,644 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,644 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,644 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,644 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,644 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,644 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 595) no Hoare annotation was computed. [2020-07-21 22:56:54,644 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:56:54,644 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:56:54,645 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:56:54,645 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:56:54,645 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:56:54,645 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:56:54,645 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:56:54,645 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:56:54,645 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:56:54,645 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:56:54,646 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:56:54,646 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,646 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,646 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,646 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,646 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,646 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:56:54,646 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:56:54,647 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:56:54,647 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:56:54,647 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:56:54,647 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:56:54,647 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:56:54,647 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:56:54,647 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:56:54,647 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:56:54,648 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:56:54,648 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:56:54,648 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:56:54,648 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,648 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,648 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,648 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,649 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,649 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:56:54,649 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:56:54,649 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:56:54,649 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:56:54,649 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:56:54,649 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:56:54,649 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:56:54,650 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:56:54,650 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:56:54,650 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:56:54,650 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:56:54,650 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:56:54,650 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:56:54,650 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:56:54,650 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:56:54,651 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:56:54,651 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,651 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,651 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,651 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,651 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:56:54,651 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,651 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:56:54,651 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,652 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:56:54,652 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:56:54,652 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:56:54,652 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,652 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,652 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:56:54,652 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:56:54,652 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:56:54,652 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:56:54,653 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:56:54,653 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:56:54,653 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:56:54,653 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:56:54,653 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:56:54,653 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:56:54,653 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:56:54,653 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,653 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,654 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,654 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,654 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,654 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,654 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:56:54,654 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:56:54,654 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:56:54,654 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:56:54,654 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:56:54,655 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:56:54,655 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:56:54,655 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:56:54,655 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:56:54,655 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:56:54,655 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:56:54,655 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,655 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:56:54,656 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,657 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse12 (= 1 |old(~a25~0)|))) (let ((.cse10 (= 9 ~a28~0)) (.cse13 (not (= 9 |old(~a28~0)|))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse3 (= 1 ~a19~0)) (.cse17 (<= ~a25~0 0)) (.cse16 (not (<= |old(~a25~0)| 0))) (.cse1 (not (= 10 |old(~a28~0)|))) (.cse2 (not (= 8 |old(~a17~0)|))) (.cse18 (not .cse12)) (.cse5 (= 10 ~a28~0)) (.cse22 (<= ~a19~0 0)) (.cse6 (= 8 ~a17~0)) (.cse11 (= 1 ~a25~0)) (.cse23 (not (<= |old(~a19~0)| 0))) (.cse7 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse21 (= 1 ~a11~0)) (.cse14 (not (= 1 |old(~a11~0)|))) (.cse15 (not (<= |old(~a28~0)| 8))) (.cse24 (not (< |old(~a17~0)| 9))) (.cse8 (not (= 1 ~a21~0))) (.cse9 (not (<= |old(~a11~0)| 0))) (.cse4 (<= ~a11~0 |old(~a11~0)|)) (.cse19 (<= ~a17~0 |old(~a17~0)|)) (.cse20 (<= ~a28~0 |old(~a28~0)|))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6) .cse7 .cse8 .cse9) (or .cse0 (and .cse10 (not .cse11)) .cse12 .cse2 .cse7 .cse8 .cse13 .cse14) (or .cse0 .cse2 (and .cse3 .cse6) .cse15 .cse8 .cse9) (or .cse0 .cse2 .cse16 (not (= 7 |old(~a28~0)|)) .cse7 .cse8 .cse9 (and .cse17 (= 7 ~a28~0))) (or .cse0 (and .cse3 .cse4 .cse10 .cse6) .cse2 .cse7 .cse8 .cse9 .cse13) (or .cse0 .cse2 .cse18 .cse7 .cse8 .cse9 .cse13 .cse11) (or (not (<= |old(~a17~0)| 7)) (and .cse19 .cse20 .cse21) .cse8 .cse14) (or .cse0 .cse2 .cse18 .cse7 .cse8 (and .cse10 .cse11) .cse13 .cse14) (or .cse0 .cse2 (and .cse3 .cse20 .cse21 .cse6) .cse8 (not (< |old(~a28~0)| 11)) .cse14) (or .cse0 .cse2 (and .cse3 .cse4 (= 11 ~a28~0) .cse6 .cse11) (not (= 11 |old(~a28~0)|)) .cse18 .cse7 .cse8 .cse9) (or .cse1 (and (= 7 ~a17~0) .cse17 .cse5 .cse22) .cse16 .cse23 (not (= 7 |old(~a17~0)|)) .cse8 .cse14) (or .cse1 .cse2 .cse18 (and .cse4 .cse5 .cse22 .cse6 .cse11) .cse23 .cse7 .cse8 .cse9) (or (and .cse20 .cse21 (< ~a17~0 9)) .cse15 .cse24 .cse8 .cse14) (or .cse15 .cse24 .cse8 .cse9 (and .cse4 .cse19 .cse20))))) [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:56:54,658 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:56:54,659 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,660 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:56:54,661 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:56:54,662 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:56:54,662 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:56:54,662 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:56:54,662 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:56:54,662 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:56:54,662 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:56:54,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:56:54,662 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 22:56:54,662 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:56:54,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:56:54,662 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (and (= 1 ~a19~0) (<= ~a11~0 |old(~a11~0)|) (<= ~a25~0 0) (= 7 ~a28~0) (= 8 ~a17~0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:56:54,662 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= 1 ~a19~0)) (.cse5 (< ~a28~0 11)) (.cse4 (= 1 ~a11~0)) (.cse6 (<= ~a28~0 8)) (.cse7 (< ~a17~0 9)) (.cse1 (<= ~a11~0 0)) (.cse2 (= 8 ~a17~0)) (.cse3 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (not (= 7 |old(~a28~0)|)) (and .cse0 .cse1 (= 11 ~a28~0) .cse2 .cse3) (and .cse4 (<= ~a17~0 7)) (and .cse0 .cse1 .cse5 .cse2) (and .cse0 .cse4 .cse5 .cse2) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse4 .cse6 .cse7) (not (= 8 |old(~a17~0)|)) (and .cse1 .cse6 .cse7) (not (<= |old(~a25~0)| 0)) (and .cse1 (= 10 ~a28~0) (<= ~a19~0 0) .cse2 .cse3))) [2020-07-21 22:56:54,663 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:56:54,663 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:56:54,663 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (< ~a28~0 11)) (.cse5 (= 1 ~a11~0)) (.cse6 (<= ~a28~0 8)) (.cse7 (< ~a17~0 9)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a11~0 0)) (.cse3 (= 8 ~a17~0)) (.cse4 (or (= 1 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0))) (.cse8 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 7 |old(~a28~0)|)) (and .cse5 (<= ~a17~0 7)) (and .cse0 .cse5 .cse2 .cse3) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse5 .cse6 .cse7) (not (= 8 |old(~a17~0)|)) (and .cse1 .cse6 .cse7) (not (<= |old(~a25~0)| 0)) (and .cse1 (= 10 ~a28~0) (<= ~a19~0 0) .cse3 .cse4 .cse8) (and .cse0 .cse1 (= 11 ~a28~0) .cse3 .cse4 .cse8))) [2020-07-21 22:56:54,663 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:56:54,663 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:56:54,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:56:54 BoogieIcfgContainer [2020-07-21 22:56:54,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:56:54,686 INFO L168 Benchmark]: Toolchain (without parser) took 46871.83 ms. Allocated memory was 137.4 MB in the beginning and 598.2 MB in the end (delta: 460.8 MB). Free memory was 99.3 MB in the beginning and 440.8 MB in the end (delta: -341.4 MB). Peak memory consumption was 463.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,686 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.07 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 98.9 MB in the beginning and 169.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,688 INFO L168 Benchmark]: Boogie Preprocessor took 137.44 ms. Allocated memory is still 203.4 MB. Free memory was 169.3 MB in the beginning and 164.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,689 INFO L168 Benchmark]: RCFGBuilder took 1519.92 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 164.3 MB in the beginning and 179.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,690 INFO L168 Benchmark]: TraceAbstraction took 44485.85 ms. Allocated memory was 234.9 MB in the beginning and 598.2 MB in the end (delta: 363.3 MB). Free memory was 178.3 MB in the beginning and 440.8 MB in the end (delta: -262.4 MB). Peak memory consumption was 445.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:54,693 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.07 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 98.9 MB in the beginning and 169.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.44 ms. Allocated memory is still 203.4 MB. Free memory was 169.3 MB in the beginning and 164.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1519.92 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 164.3 MB in the beginning and 179.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44485.85 ms. Allocated memory was 234.9 MB in the beginning and 598.2 MB in the end (delta: 363.3 MB). Free memory was 178.3 MB in the beginning and 440.8 MB in the end (delta: -262.4 MB). Peak memory consumption was 445.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 595]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((!(1 == \old(a19)) || !(7 == \old(a28))) || ((((1 == a19 && a11 <= 0) && 11 == a28) && 8 == a17) && 1 == a25)) || (1 == a11 && a17 <= 7)) || (((1 == a19 && a11 <= 0) && a28 < 11) && 8 == a17)) || (((1 == a19 && 1 == a11) && a28 < 11) && 8 == a17)) || !(1 == a21)) || !(\old(a11) <= 0)) || ((1 == a11 && a28 <= 8) && a17 < 9)) || !(8 == \old(a17))) || ((a11 <= 0 && a28 <= 8) && a17 < 9)) || !(\old(a25) <= 0)) || ((((a11 <= 0 && 10 == a28) && a19 <= 0) && 8 == a17) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 41.9s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 26.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 924 SDtfs, 6046 SDslu, 1430 SDs, 0 SdLazy, 15177 SolverSat, 1452 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3370 GetRequests, 3130 SyntacticMatches, 22 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2060 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2167occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 357 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 96 PreInvPairs, 133 NumberOfFragments, 987 HoareAnnotationTreeSize, 96 FomulaSimplifications, 4252 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1187 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 2017 NumberOfCodeBlocks, 1381 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3255 ConstructedInterpolants, 0 QuantifiedInterpolants, 8980353 SizeOfPredicates, 107 NumberOfNonLiveVariables, 3587 ConjunctsInSsa, 307 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 912/1147 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...