/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_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:24:18,413 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:24:18,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:24:18,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:24:18,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:24:18,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:24:18,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:24:18,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:24:18,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:24:18,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:24:18,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:24:18,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:24:18,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:24:18,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:24:18,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:24:18,490 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 01:24:18,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:24:18,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:24:18,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:24:18,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:24:18,507 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:24:18,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:24:18,507 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:24:18,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:24:18,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:24:18,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:24:18,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:24:18,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:24:18,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:24:18,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:24:18,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:24:18,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:24:18,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:24:18,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:24:18,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:24:18,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:24:18,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:24:18,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:24:18,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:24:18,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:24:18,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:24:18,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:24:18,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:18,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:24:18,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:24:18,512 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 01:24:18,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:24:18,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:24:18,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:24:18,821 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:24:18,821 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:24:18,822 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-07-21 01:24:18,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949a29552/c13dd8f70a144043b00fbc9845f325e8/FLAGcbb247978 [2020-07-21 01:24:19,412 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:24:19,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-07-21 01:24:19,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949a29552/c13dd8f70a144043b00fbc9845f325e8/FLAGcbb247978 [2020-07-21 01:24:19,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949a29552/c13dd8f70a144043b00fbc9845f325e8 [2020-07-21 01:24:19,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:24:19,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:24:19,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:24:19,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:24:19,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:24:19,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:24:19" (1/1) ... [2020-07-21 01:24:19,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65155d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:19, skipping insertion in model container [2020-07-21 01:24:19,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:24:19" (1/1) ... [2020-07-21 01:24:19,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:24:19,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:24:20,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:24:20,374 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:24:20,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:24:20,546 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:24:20,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20 WrapperNode [2020-07-21 01:24:20,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:24:20,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:24:20,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:24:20,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:24:20,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20" (1/1) ... [2020-07-21 01:24:20,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20" (1/1) ... [2020-07-21 01:24:20,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20" (1/1) ... [2020-07-21 01:24:20,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20" (1/1) ... [2020-07-21 01:24:20,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20" (1/1) ... [2020-07-21 01:24:20,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20" (1/1) ... [2020-07-21 01:24:20,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20" (1/1) ... [2020-07-21 01:24:20,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:24:20,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:24:20,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:24:20,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:24:20,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20" (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 01:24:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:24:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:24:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:24:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:24:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:24:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:24:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:24:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:24:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:24:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:24:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:24:21,961 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:24:21,962 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:24:21,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:21 BoogieIcfgContainer [2020-07-21 01:24:21,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:24:21,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:24:21,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:24:21,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:24:21,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:24:19" (1/3) ... [2020-07-21 01:24:21,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b672b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:21, skipping insertion in model container [2020-07-21 01:24:21,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:20" (2/3) ... [2020-07-21 01:24:21,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b672b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:21, skipping insertion in model container [2020-07-21 01:24:21,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:21" (3/3) ... [2020-07-21 01:24:21,978 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label21.c [2020-07-21 01:24:21,990 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:24:21,999 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:24:22,015 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:24:22,042 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:24:22,043 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:24:22,043 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:24:22,043 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:24:22,043 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:24:22,043 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:24:22,044 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:24:22,044 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:24:22,071 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:24:22,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-21 01:24:22,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:22,086 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] [2020-07-21 01:24:22,087 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:22,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:22,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1487720814, now seen corresponding path program 1 times [2020-07-21 01:24:22,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:22,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374296811] [2020-07-21 01:24:22,108 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 01:24:22,294 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:22,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:22,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:24:22,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:22,828 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:24:22,833 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:24:22,834 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:24:22,935 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 01:24:22,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:22,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374296811] [2020-07-21 01:24:22,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:22,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:24:22,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043906421] [2020-07-21 01:24:22,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:24:22,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:22,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:24:22,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:24:22,966 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:24:24,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:24,219 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:24:24,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:24:24,221 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 102 [2020-07-21 01:24:24,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:24,243 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:24:24,243 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:24:24,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 93 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 01:24:24,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:24:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:24:24,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:24:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:24:24,361 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 102 [2020-07-21 01:24:24,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:24,362 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:24:24,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:24:24,363 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:24:24,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 01:24:24,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:24,368 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] [2020-07-21 01:24:24,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:24,584 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:24,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:24,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1509467745, now seen corresponding path program 1 times [2020-07-21 01:24:24,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:24,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904283974] [2020-07-21 01:24:24,587 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 01:24:24,695 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:24,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:24,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:24:24,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:25,218 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 01:24:25,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:25,615 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:24:25,617 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:24:25,618 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:24:25,620 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:24:25,621 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:24:25,642 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:24:25,642 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:25,695 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:25,794 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:25,890 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 01:24:25,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904283974] [2020-07-21 01:24:25,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:25,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:24:25,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871313765] [2020-07-21 01:24:25,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:24:25,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:25,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:24:25,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:24:25,894 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:24:26,868 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:24:27,861 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:24:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:29,098 INFO L93 Difference]: Finished difference Result 740 states and 1084 transitions. [2020-07-21 01:24:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:24:29,099 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 111 [2020-07-21 01:24:29,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:29,105 INFO L225 Difference]: With dead ends: 740 [2020-07-21 01:24:29,105 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 01:24:29,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:24:29,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 01:24:29,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 393. [2020-07-21 01:24:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:24:29,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 534 transitions. [2020-07-21 01:24:29,148 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 534 transitions. Word has length 111 [2020-07-21 01:24:29,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:29,148 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 534 transitions. [2020-07-21 01:24:29,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:24:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 534 transitions. [2020-07-21 01:24:29,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-21 01:24:29,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:29,153 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] [2020-07-21 01:24:29,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:29,364 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:29,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:29,365 INFO L82 PathProgramCache]: Analyzing trace with hash -48867817, now seen corresponding path program 1 times [2020-07-21 01:24:29,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:29,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173946416] [2020-07-21 01:24:29,367 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 01:24:29,460 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:29,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:29,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:29,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:29,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:29,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:29,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173946416] [2020-07-21 01:24:29,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:29,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:29,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165241803] [2020-07-21 01:24:29,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:29,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:29,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:29,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:29,516 INFO L87 Difference]: Start difference. First operand 393 states and 534 transitions. Second operand 3 states. [2020-07-21 01:24:30,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:30,161 INFO L93 Difference]: Finished difference Result 1075 states and 1497 transitions. [2020-07-21 01:24:30,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:30,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-21 01:24:30,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:30,167 INFO L225 Difference]: With dead ends: 1075 [2020-07-21 01:24:30,167 INFO L226 Difference]: Without dead ends: 688 [2020-07-21 01:24:30,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 01:24:30,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-07-21 01:24:30,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 684. [2020-07-21 01:24:30,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-07-21 01:24:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 860 transitions. [2020-07-21 01:24:30,210 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 860 transitions. Word has length 115 [2020-07-21 01:24:30,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:30,211 INFO L479 AbstractCegarLoop]: Abstraction has 684 states and 860 transitions. [2020-07-21 01:24:30,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:30,212 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 860 transitions. [2020-07-21 01:24:30,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 01:24:30,216 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:30,216 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] [2020-07-21 01:24:30,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:30,430 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:30,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:30,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1280951697, now seen corresponding path program 1 times [2020-07-21 01:24:30,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:30,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626689310] [2020-07-21 01:24:30,432 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 01:24:30,539 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:30,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:30,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:30,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:30,572 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 01:24:30,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:30,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626689310] [2020-07-21 01:24:30,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:30,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:30,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801598269] [2020-07-21 01:24:30,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:30,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:30,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:30,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:30,575 INFO L87 Difference]: Start difference. First operand 684 states and 860 transitions. Second operand 3 states. [2020-07-21 01:24:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:31,272 INFO L93 Difference]: Finished difference Result 1658 states and 2156 transitions. [2020-07-21 01:24:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:31,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 01:24:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:31,284 INFO L225 Difference]: With dead ends: 1658 [2020-07-21 01:24:31,284 INFO L226 Difference]: Without dead ends: 980 [2020-07-21 01:24:31,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 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 01:24:31,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-07-21 01:24:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2020-07-21 01:24:31,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 980 states. [2020-07-21 01:24:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1212 transitions. [2020-07-21 01:24:31,326 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1212 transitions. Word has length 137 [2020-07-21 01:24:31,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:31,327 INFO L479 AbstractCegarLoop]: Abstraction has 980 states and 1212 transitions. [2020-07-21 01:24:31,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1212 transitions. [2020-07-21 01:24:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-21 01:24:31,332 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:31,332 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] [2020-07-21 01:24:31,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:31,546 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:31,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:31,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1745267694, now seen corresponding path program 1 times [2020-07-21 01:24:31,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:31,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488147869] [2020-07-21 01:24:31,549 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 01:24:31,642 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:31,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:31,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:31,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:31,690 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 01:24:31,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:31,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488147869] [2020-07-21 01:24:31,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:31,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:31,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453926336] [2020-07-21 01:24:31,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:31,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:31,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:31,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:31,695 INFO L87 Difference]: Start difference. First operand 980 states and 1212 transitions. Second operand 3 states. [2020-07-21 01:24:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:32,323 INFO L93 Difference]: Finished difference Result 2248 states and 2875 transitions. [2020-07-21 01:24:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:32,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-07-21 01:24:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:32,337 INFO L225 Difference]: With dead ends: 2248 [2020-07-21 01:24:32,337 INFO L226 Difference]: Without dead ends: 1274 [2020-07-21 01:24:32,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:32,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2020-07-21 01:24:32,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1272. [2020-07-21 01:24:32,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1272 states. [2020-07-21 01:24:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1613 transitions. [2020-07-21 01:24:32,399 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1613 transitions. Word has length 136 [2020-07-21 01:24:32,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:32,399 INFO L479 AbstractCegarLoop]: Abstraction has 1272 states and 1613 transitions. [2020-07-21 01:24:32,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:32,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1613 transitions. [2020-07-21 01:24:32,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 01:24:32,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:32,406 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:32,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:32,622 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:32,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:32,623 INFO L82 PathProgramCache]: Analyzing trace with hash -468330397, now seen corresponding path program 1 times [2020-07-21 01:24:32,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:32,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429935042] [2020-07-21 01:24:32,624 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 01:24:32,710 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:32,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:32,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:24:32,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:32,774 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:32,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:32,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429935042] [2020-07-21 01:24:32,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:32,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:32,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278254349] [2020-07-21 01:24:32,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:32,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:32,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:32,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:32,842 INFO L87 Difference]: Start difference. First operand 1272 states and 1613 transitions. Second operand 7 states. [2020-07-21 01:24:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:34,479 INFO L93 Difference]: Finished difference Result 4698 states and 6235 transitions. [2020-07-21 01:24:34,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:24:34,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2020-07-21 01:24:34,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:34,502 INFO L225 Difference]: With dead ends: 4698 [2020-07-21 01:24:34,502 INFO L226 Difference]: Without dead ends: 3432 [2020-07-21 01:24:34,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:24:34,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2020-07-21 01:24:34,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3428. [2020-07-21 01:24:34,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-07-21 01:24:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 4376 transitions. [2020-07-21 01:24:34,669 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 4376 transitions. Word has length 143 [2020-07-21 01:24:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:34,669 INFO L479 AbstractCegarLoop]: Abstraction has 3428 states and 4376 transitions. [2020-07-21 01:24:34,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 4376 transitions. [2020-07-21 01:24:34,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 01:24:34,679 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:34,679 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2020-07-21 01:24:34,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:34,895 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:34,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:34,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1391668192, now seen corresponding path program 1 times [2020-07-21 01:24:34,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:34,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993678197] [2020-07-21 01:24:34,896 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 01:24:34,997 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:34,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:34,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:35,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:24:35,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:24:35,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993678197] [2020-07-21 01:24:35,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:35,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:35,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603771409] [2020-07-21 01:24:35,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:35,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:35,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:35,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:35,116 INFO L87 Difference]: Start difference. First operand 3428 states and 4376 transitions. Second operand 7 states. [2020-07-21 01:24:35,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:35,771 INFO L93 Difference]: Finished difference Result 6820 states and 8923 transitions. [2020-07-21 01:24:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:24:35,772 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-07-21 01:24:35,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:35,795 INFO L225 Difference]: With dead ends: 6820 [2020-07-21 01:24:35,796 INFO L226 Difference]: Without dead ends: 3401 [2020-07-21 01:24:35,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 302 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:24:35,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-07-21 01:24:35,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3367. [2020-07-21 01:24:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3367 states. [2020-07-21 01:24:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 4237 transitions. [2020-07-21 01:24:35,925 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 4237 transitions. Word has length 154 [2020-07-21 01:24:35,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:35,925 INFO L479 AbstractCegarLoop]: Abstraction has 3367 states and 4237 transitions. [2020-07-21 01:24:35,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:35,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 4237 transitions. [2020-07-21 01:24:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 01:24:35,933 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:35,933 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:36,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:36,149 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:36,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:36,150 INFO L82 PathProgramCache]: Analyzing trace with hash -906835953, now seen corresponding path program 1 times [2020-07-21 01:24:36,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:36,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197807243] [2020-07-21 01:24:36,152 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 01:24:36,285 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:36,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:36,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:24:36,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:36,334 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:36,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:36,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197807243] [2020-07-21 01:24:36,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:36,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:36,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507045279] [2020-07-21 01:24:36,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:36,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:36,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:36,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:36,409 INFO L87 Difference]: Start difference. First operand 3367 states and 4237 transitions. Second operand 7 states. [2020-07-21 01:24:37,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:37,312 INFO L93 Difference]: Finished difference Result 8092 states and 10625 transitions. [2020-07-21 01:24:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:24:37,312 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-07-21 01:24:37,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:37,341 INFO L225 Difference]: With dead ends: 8092 [2020-07-21 01:24:37,341 INFO L226 Difference]: Without dead ends: 4785 [2020-07-21 01:24:37,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:24:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2020-07-21 01:24:37,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4733. [2020-07-21 01:24:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4733 states. [2020-07-21 01:24:37,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4733 states to 4733 states and 5854 transitions. [2020-07-21 01:24:37,498 INFO L78 Accepts]: Start accepts. Automaton has 4733 states and 5854 transitions. Word has length 153 [2020-07-21 01:24:37,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:37,499 INFO L479 AbstractCegarLoop]: Abstraction has 4733 states and 5854 transitions. [2020-07-21 01:24:37,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand 4733 states and 5854 transitions. [2020-07-21 01:24:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 01:24:37,507 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:37,508 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:37,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:37,723 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:37,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:37,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1913851188, now seen corresponding path program 1 times [2020-07-21 01:24:37,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:37,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710327615] [2020-07-21 01:24:37,725 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 01:24:37,889 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:37,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:37,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:37,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:24:37,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:24:38,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710327615] [2020-07-21 01:24:38,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:38,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:38,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923225929] [2020-07-21 01:24:38,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:38,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:38,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:38,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:38,024 INFO L87 Difference]: Start difference. First operand 4733 states and 5854 transitions. Second operand 7 states. [2020-07-21 01:24:39,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:39,121 INFO L93 Difference]: Finished difference Result 8348 states and 10321 transitions. [2020-07-21 01:24:39,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:24:39,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-07-21 01:24:39,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:39,144 INFO L225 Difference]: With dead ends: 8348 [2020-07-21 01:24:39,144 INFO L226 Difference]: Without dead ends: 4559 [2020-07-21 01:24:39,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 309 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:24:39,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4559 states. [2020-07-21 01:24:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4559 to 4559. [2020-07-21 01:24:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4559 states. [2020-07-21 01:24:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4559 states to 4559 states and 5459 transitions. [2020-07-21 01:24:39,264 INFO L78 Accepts]: Start accepts. Automaton has 4559 states and 5459 transitions. Word has length 157 [2020-07-21 01:24:39,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:39,265 INFO L479 AbstractCegarLoop]: Abstraction has 4559 states and 5459 transitions. [2020-07-21 01:24:39,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:39,265 INFO L276 IsEmpty]: Start isEmpty. Operand 4559 states and 5459 transitions. [2020-07-21 01:24:39,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-21 01:24:39,274 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:39,275 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, 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] [2020-07-21 01:24:39,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:39,480 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -753061042, now seen corresponding path program 1 times [2020-07-21 01:24:39,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:39,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703722192] [2020-07-21 01:24:39,482 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 01:24:39,620 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:39,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:39,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:39,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:39,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:39,754 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:39,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703722192] [2020-07-21 01:24:39,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:39,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:39,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056018171] [2020-07-21 01:24:39,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:39,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:39,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:39,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:39,758 INFO L87 Difference]: Start difference. First operand 4559 states and 5459 transitions. Second operand 7 states. [2020-07-21 01:24:41,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:41,066 INFO L93 Difference]: Finished difference Result 7152 states and 8545 transitions. [2020-07-21 01:24:41,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:24:41,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2020-07-21 01:24:41,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:41,080 INFO L225 Difference]: With dead ends: 7152 [2020-07-21 01:24:41,080 INFO L226 Difference]: Without dead ends: 2781 [2020-07-21 01:24:41,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 371 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:24:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2020-07-21 01:24:41,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2625. [2020-07-21 01:24:41,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2625 states. [2020-07-21 01:24:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 2870 transitions. [2020-07-21 01:24:41,146 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 2870 transitions. Word has length 188 [2020-07-21 01:24:41,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:41,146 INFO L479 AbstractCegarLoop]: Abstraction has 2625 states and 2870 transitions. [2020-07-21 01:24:41,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:41,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 2870 transitions. [2020-07-21 01:24:41,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-07-21 01:24:41,154 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:41,154 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:24:41,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:41,370 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:41,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:41,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1998592772, now seen corresponding path program 1 times [2020-07-21 01:24:41,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:41,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610372684] [2020-07-21 01:24:41,371 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:41,472 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:41,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:41,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 01:24:41,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:41,550 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-07-21 01:24:41,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:41,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610372684] [2020-07-21 01:24:41,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:41,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:41,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069081083] [2020-07-21 01:24:41,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:41,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:41,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:41,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:41,553 INFO L87 Difference]: Start difference. First operand 2625 states and 2870 transitions. Second operand 3 states. [2020-07-21 01:24:42,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:42,021 INFO L93 Difference]: Finished difference Result 4413 states and 4820 transitions. [2020-07-21 01:24:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:42,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-07-21 01:24:42,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:42,033 INFO L225 Difference]: With dead ends: 4413 [2020-07-21 01:24:42,033 INFO L226 Difference]: Without dead ends: 2736 [2020-07-21 01:24:42,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 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 01:24:42,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2020-07-21 01:24:42,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2448. [2020-07-21 01:24:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2448 states. [2020-07-21 01:24:42,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 2633 transitions. [2020-07-21 01:24:42,087 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 2633 transitions. Word has length 233 [2020-07-21 01:24:42,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:42,087 INFO L479 AbstractCegarLoop]: Abstraction has 2448 states and 2633 transitions. [2020-07-21 01:24:42,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:42,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 2633 transitions. [2020-07-21 01:24:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-21 01:24:42,094 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:42,095 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:42,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:42,309 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:42,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:42,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1473516162, now seen corresponding path program 1 times [2020-07-21 01:24:42,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:42,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960844719] [2020-07-21 01:24:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:42,449 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:42,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:42,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-21 01:24:42,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:42,528 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-21 01:24:42,530 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:24:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:24:42,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:42,809 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:42,811 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:24:42,987 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:24:42,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960844719] [2020-07-21 01:24:42,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:42,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2020-07-21 01:24:42,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546576987] [2020-07-21 01:24:42,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:24:42,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:42,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:24:42,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:24:42,992 INFO L87 Difference]: Start difference. First operand 2448 states and 2633 transitions. Second operand 11 states. [2020-07-21 01:24:44,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:44,258 INFO L93 Difference]: Finished difference Result 4252 states and 4569 transitions. [2020-07-21 01:24:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-21 01:24:44,263 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 244 [2020-07-21 01:24:44,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:44,271 INFO L225 Difference]: With dead ends: 4252 [2020-07-21 01:24:44,272 INFO L226 Difference]: Without dead ends: 2306 [2020-07-21 01:24:44,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-07-21 01:24:44,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2020-07-21 01:24:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2300. [2020-07-21 01:24:44,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2300 states. [2020-07-21 01:24:44,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 2468 transitions. [2020-07-21 01:24:44,318 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 2468 transitions. Word has length 244 [2020-07-21 01:24:44,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:44,318 INFO L479 AbstractCegarLoop]: Abstraction has 2300 states and 2468 transitions. [2020-07-21 01:24:44,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:24:44,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 2468 transitions. [2020-07-21 01:24:44,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-07-21 01:24:44,325 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:44,325 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:44,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:44,539 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:44,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:44,539 INFO L82 PathProgramCache]: Analyzing trace with hash 477924878, now seen corresponding path program 1 times [2020-07-21 01:24:44,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:44,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774300643] [2020-07-21 01:24:44,540 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:44,673 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:44,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:44,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:44,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-07-21 01:24:44,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:44,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774300643] [2020-07-21 01:24:44,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:44,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:44,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893130857] [2020-07-21 01:24:44,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:44,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:44,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:44,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:44,768 INFO L87 Difference]: Start difference. First operand 2300 states and 2468 transitions. Second operand 3 states. [2020-07-21 01:24:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:45,241 INFO L93 Difference]: Finished difference Result 4970 states and 5379 transitions. [2020-07-21 01:24:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:45,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2020-07-21 01:24:45,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:45,243 INFO L225 Difference]: With dead ends: 4970 [2020-07-21 01:24:45,243 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:24:45,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 254 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 01:24:45,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:24:45,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:24:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:24:45,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:24:45,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 256 [2020-07-21 01:24:45,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:45,253 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:24:45,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:45,254 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:24:45,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:24:45,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:45,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:24:47,486 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 166 DAG size of output: 105 [2020-07-21 01:24:47,836 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2020-07-21 01:24:48,143 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 52 [2020-07-21 01:24:48,148 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:24:48,148 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 (= 10 |old(~a28~0)|)) (not (= 1 |old(~a25~0)|)) (= 10 ~a28~0) .cse0) (= ~a19~0 |old(~a19~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse0) (= ~a25~0 |old(~a25~0)|))) [2020-07-21 01:24:48,149 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:24:48,149 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,149 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,149 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,150 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,150 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,150 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:24:48,150 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:24:48,150 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:24:48,151 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:24:48,151 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:24:48,151 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:24:48,151 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:24:48,151 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:24:48,152 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:24:48,152 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:24:48,152 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:24:48,152 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:24:48,152 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:24:48,152 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,152 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,152 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,152 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,153 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:24:48,153 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,153 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:24:48,153 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:24:48,153 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:24:48,153 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:24:48,153 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:24:48,153 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:24:48,154 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:24:48,154 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:24:48,154 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:24:48,154 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:24:48,154 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:24:48,154 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:24:48,154 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:24:48,154 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:24:48,154 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:24:48,155 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,155 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,155 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,155 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,155 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,155 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 460) no Hoare annotation was computed. [2020-07-21 01:24:48,155 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:24:48,155 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:24:48,156 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:24:48,156 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:24:48,156 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:24:48,156 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:24:48,156 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:24:48,156 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:24:48,156 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:24:48,156 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:24:48,157 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:24:48,157 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,157 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,157 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,157 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,157 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,157 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:24:48,157 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:24:48,157 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:24:48,158 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:24:48,158 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:24:48,158 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:24:48,158 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:24:48,158 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:24:48,158 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:24:48,158 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:24:48,158 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:24:48,159 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:24:48,159 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:24:48,159 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,159 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,159 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,159 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,159 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,159 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:24:48,160 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:24:48,160 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:24:48,160 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:24:48,160 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:24:48,160 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:24:48,160 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:24:48,160 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:24:48,160 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,161 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,162 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,162 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:24:48,162 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,162 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:24:48,162 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,162 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:24:48,162 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:24:48,162 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:24:48,162 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,163 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,163 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:24:48,163 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:24:48,163 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:24:48,163 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:24:48,163 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:24:48,163 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:24:48,163 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:24:48,163 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:24:48,164 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:24:48,164 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:24:48,164 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:24:48,164 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,164 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,164 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,164 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,164 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,165 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,165 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:24:48,165 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:24:48,165 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:24:48,165 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:24:48,165 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:24:48,165 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:24:48,165 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:24:48,165 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:24:48,166 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:24:48,166 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:24:48,166 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:24:48,166 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,166 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,166 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,166 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,166 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,166 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:24:48,167 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:24:48,168 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:24:48,168 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:24:48,168 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:24:48,168 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:24:48,168 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,168 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,168 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,169 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse13 (not (= 1 ~a21~0))) (.cse25 (<= ~a11~0 0)) (.cse26 (< 0 |old(~a11~0)|))) (let ((.cse3 (<= 10 ~a28~0)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse18 (or .cse25 .cse26)) (.cse24 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (or .cse25 .cse26 .cse13)) (.cse22 (<= 9 ~a28~0)) (.cse23 (not (<= |old(~a17~0)| 7))) (.cse1 (<= ~a17~0 8)) (.cse2 (<= 8 ~a17~0)) (.cse4 (= ~a19~0 |old(~a19~0)|)) (.cse12 (= ~a28~0 |old(~a28~0)|)) (.cse20 (= 1 ~a25~0)) (.cse8 (not (<= 10 |old(~a28~0)|))) (.cse10 (not (< |old(~a28~0)| 11))) (.cse21 (not (<= 9 |old(~a28~0)|))) (.cse17 (= 1 |old(~a11~0)|)) (.cse11 (not (<= |old(~a28~0)| 9))) (.cse7 (not (<= 8 |old(~a17~0)|))) (.cse15 (not (= 1 |old(~a25~0)|))) (.cse19 (not (= 1 ~a11~0))) (.cse9 (not (<= |old(~a17~0)| 8))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse14 (<= ~a11~0 |old(~a11~0)|)) (.cse16 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 (and .cse1 .cse2 (< ~a28~0 11) .cse3 .cse4 .cse5 .cse6) .cse7 .cse8 .cse9 .cse10) (or .cse11 .cse7 (and .cse1 .cse2 .cse4 .cse12 .cse6) .cse13 .cse9) (or .cse14 .cse7 .cse15 .cse9 .cse13 .cse16 .cse10) (or .cse0 .cse17 .cse7 .cse15 .cse13 .cse9 (and .cse1 .cse18 .cse2 .cse19 .cse4 .cse12 .cse20)) (or .cse0 .cse21 .cse11 (and .cse1 .cse2 (<= ~a28~0 9) .cse4 .cse22 .cse20) .cse7 .cse15 .cse9) (or .cse23 .cse8 (and .cse24 .cse3 .cse4 .cse5 .cse6)) (or .cse0 (not (<= |old(~a28~0)| 7)) .cse15 .cse23 (and .cse24 .cse18 .cse4 .cse12 .cse20) .cse13) (or .cse21 .cse17 .cse11 .cse7 .cse19 .cse9 .cse13) (or .cse14 .cse11 .cse7 .cse9 .cse13 .cse16) (or .cse21 (and .cse24 .cse4 .cse5 .cse22 .cse20) .cse15 .cse23) (or .cse17 .cse7 .cse15 (and .cse1 .cse2 .cse19 .cse4 .cse12 .cse20) .cse8 .cse9 .cse13 .cse10) (or .cse0 .cse21 .cse17 .cse11 .cse7 .cse15 .cse19 .cse9) (or .cse0 .cse14 (not (= 10 |old(~a28~0)|)) (not (= 8 |old(~a17~0)|)) (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|))) .cse13 .cse16)))) [2020-07-21 01:24:48,169 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,169 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,169 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,169 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:24:48,170 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:24:48,170 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:24:48,170 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:24:48,170 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:24:48,170 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:24:48,170 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:24:48,170 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:24:48,170 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:24:48,170 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:24:48,171 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:24:48,171 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:24:48,171 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:24:48,171 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,171 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,171 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,171 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,171 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,171 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:24:48,172 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,173 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:24:48,174 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:24:48,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:24:48,176 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 01:24:48,176 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:24:48,176 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:24:48,176 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 01:24:48,176 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse7 (<= 10 ~a28~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 7)) (.cse6 (< ~a28~0 11)) (.cse5 (not (= 1 ~a11~0))) (.cse1 (<= 9 ~a28~0)) (.cse2 (= 1 ~a25~0)) (.cse4 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse1 .cse2) (not (= 7 |old(~a28~0)|)) (and .cse3 .cse4 .cse6 .cse7) (and .cse0 .cse7) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse3 .cse0 (<= ~a28~0 7) .cse2) (not (= 8 |old(~a17~0)|)) (and .cse4 .cse6 .cse5 .cse1 .cse2) (not (<= |old(~a25~0)| 0)) (and .cse4 (<= 8 ~a17~0) (<= ~a28~0 9)))) [2020-07-21 01:24:48,176 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:24:48,176 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:24:48,177 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (<= 10 ~a28~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 7)) (.cse6 (< ~a28~0 11)) (.cse5 (not (= 1 ~a11~0))) (.cse1 (<= 9 ~a28~0)) (.cse2 (= 1 ~a25~0)) (.cse4 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse1 .cse2) (not (= 7 |old(~a28~0)|)) (and .cse3 .cse4 .cse6 .cse7) (and .cse0 .cse7) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse3 .cse0 (<= ~a28~0 7) .cse2) (not (= 8 |old(~a17~0)|)) (and .cse4 .cse6 .cse5 .cse1 .cse2) (not (<= |old(~a25~0)| 0)) (and .cse4 (<= 8 ~a17~0) (<= ~a28~0 9)))) [2020-07-21 01:24:48,177 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:24:48,177 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:24:48,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:24:48 BoogieIcfgContainer [2020-07-21 01:24:48,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:24:48,205 INFO L168 Benchmark]: Toolchain (without parser) took 28461.71 ms. Allocated memory was 137.9 MB in the beginning and 576.7 MB in the end (delta: 438.8 MB). Free memory was 101.0 MB in the beginning and 330.5 MB in the end (delta: -229.5 MB). Peak memory consumption was 420.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:48,206 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 01:24:48,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.86 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 100.8 MB in the beginning and 170.9 MB in the end (delta: -70.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:48,208 INFO L168 Benchmark]: Boogie Preprocessor took 136.60 ms. Allocated memory is still 205.5 MB. Free memory was 170.9 MB in the beginning and 166.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:48,208 INFO L168 Benchmark]: RCFGBuilder took 1280.28 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 182.0 MB in the end (delta: -16.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:48,209 INFO L168 Benchmark]: TraceAbstraction took 26233.26 ms. Allocated memory was 237.5 MB in the beginning and 576.7 MB in the end (delta: 339.2 MB). Free memory was 182.0 MB in the beginning and 330.5 MB in the end (delta: -148.6 MB). Peak memory consumption was 401.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:48,213 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 804.86 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 100.8 MB in the beginning and 170.9 MB in the end (delta: -70.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.60 ms. Allocated memory is still 205.5 MB. Free memory was 170.9 MB in the beginning and 166.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1280.28 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 182.0 MB in the end (delta: -16.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26233.26 ms. Allocated memory was 237.5 MB in the beginning and 576.7 MB in the end (delta: 339.2 MB). Free memory was 182.0 MB in the beginning and 330.5 MB in the end (delta: -148.6 MB). Peak memory consumption was 401.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 460]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((!(1 == \old(a19)) || ((a17 <= 7 && 9 <= a28) && 1 == a25)) || ((((1 == a19 && a17 <= 8) && !(1 == a11)) && 9 <= a28) && 1 == a25)) || !(7 == \old(a28))) || (((1 == a19 && a17 <= 8) && a28 < 11) && 10 <= a28)) || (a17 <= 7 && 10 <= a28)) || !(1 == a21)) || !(\old(a11) <= 0)) || (((1 == a19 && a17 <= 7) && a28 <= 7) && 1 == a25)) || !(8 == \old(a17))) || ((((a17 <= 8 && a28 < 11) && !(1 == a11)) && 9 <= a28) && 1 == a25)) || !(\old(a25) <= 0)) || ((a17 <= 8 && 8 <= a17) && a28 <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.4s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1242 SDtfs, 5324 SDslu, 849 SDs, 0 SdLazy, 10245 SolverSat, 1285 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3322 GetRequests, 3206 SyntacticMatches, 6 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4733occurred 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: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 578 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 192 PreInvPairs, 252 NumberOfFragments, 821 HoareAnnotationTreeSize, 192 FomulaSimplifications, 3773 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3042 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2129 NumberOfCodeBlocks, 1509 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 3259 ConstructedInterpolants, 0 QuantifiedInterpolants, 2147838 SizeOfPredicates, 50 NumberOfNonLiveVariables, 4724 ConjunctsInSsa, 155 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 1868/1898 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...