/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_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:55:38,034 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:55:38,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:55:38,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:55:38,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:55:38,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:55:38,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:55:38,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:55:38,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:55:38,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:55:38,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:55:38,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:55:38,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:55:38,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:55:38,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:55:38,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:55:38,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:55:38,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:55:38,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:55:38,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:55:38,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:55:38,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:55:38,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:55:38,101 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:55:38,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:55:38,101 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:55:38,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:55:38,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:55:38,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:55:38,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:55:38,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:55:38,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:55:38,103 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:55:38,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:55:38,103 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:55:38,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:55:38,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:55:38,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:55:38,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:55:38,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:55:38,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:55:38,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:55:38,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:55:38,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:55:38,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:55:38,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:38,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:55:38,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:55:38,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:55:38,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:55:38,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:55:38,429 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:55:38,431 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:55:38,431 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:55:38,433 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 22:55:38,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24696fa6a/0cb3df0616864364bff35e35fb3b724e/FLAGc5fd63a64 [2020-07-21 22:55:39,133 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:55:39,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 22:55:39,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24696fa6a/0cb3df0616864364bff35e35fb3b724e/FLAGc5fd63a64 [2020-07-21 22:55:39,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24696fa6a/0cb3df0616864364bff35e35fb3b724e [2020-07-21 22:55:39,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:55:39,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:55:39,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:55:39,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:55:39,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:55:39,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:39" (1/1) ... [2020-07-21 22:55:39,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1b44b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:39, skipping insertion in model container [2020-07-21 22:55:39,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:39" (1/1) ... [2020-07-21 22:55:39,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:55:39,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:55:40,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:55:40,023 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:55:40,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:55:40,172 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:55:40,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40 WrapperNode [2020-07-21 22:55:40,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:55:40,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:55:40,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:55:40,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:55:40,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40" (1/1) ... [2020-07-21 22:55:40,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40" (1/1) ... [2020-07-21 22:55:40,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40" (1/1) ... [2020-07-21 22:55:40,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40" (1/1) ... [2020-07-21 22:55:40,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40" (1/1) ... [2020-07-21 22:55:40,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40" (1/1) ... [2020-07-21 22:55:40,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40" (1/1) ... [2020-07-21 22:55:40,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:55:40,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:55:40,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:55:40,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:55:40,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:55:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:55:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:55:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:55:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:55:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:55:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:55:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:55:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:55:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:55:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:55:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:55:41,521 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:55:41,521 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:55:41,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:41 BoogieIcfgContainer [2020-07-21 22:55:41,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:55:41,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:55:41,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:55:41,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:55:41,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:55:39" (1/3) ... [2020-07-21 22:55:41,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa36d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:41, skipping insertion in model container [2020-07-21 22:55:41,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:40" (2/3) ... [2020-07-21 22:55:41,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa36d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:41, skipping insertion in model container [2020-07-21 22:55:41,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:41" (3/3) ... [2020-07-21 22:55:41,536 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-07-21 22:55:41,547 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:55:41,555 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:55:41,569 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:55:41,595 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:55:41,595 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:55:41,595 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:55:41,595 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:55:41,596 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:55:41,596 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:55:41,596 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:55:41,596 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:55:41,619 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:55:41,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 22:55:41,634 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:41,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:41,636 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:41,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:41,645 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2020-07-21 22:55:41,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:41,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914295593] [2020-07-21 22:55:41,655 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:41,843 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:55:41,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:41,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:55:41,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:42,367 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:55:42,372 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:55:42,373 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:55:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:42,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:42,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914295593] [2020-07-21 22:55:42,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:42,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:55:42,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337878139] [2020-07-21 22:55:42,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:55:42,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:42,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:55:42,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:55:42,534 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:55:43,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:43,766 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:55:43,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:55:43,769 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2020-07-21 22:55:43,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:43,791 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:55:43,791 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:55:43,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:55:43,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:55:43,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:55:43,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:55:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:55:43,877 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 142 [2020-07-21 22:55:43,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:43,877 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:55:43,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:55:43,878 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:55:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 22:55:43,883 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:43,883 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:44,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:44,096 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:44,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:44,097 INFO L82 PathProgramCache]: Analyzing trace with hash -383022913, now seen corresponding path program 1 times [2020-07-21 22:55:44,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:44,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467303891] [2020-07-21 22:55:44,098 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:44,200 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:55:44,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:44,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:55:44,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:44,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:45,154 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:55:45,156 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:55:45,158 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:55:45,159 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:55:45,160 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:55:45,186 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:55:45,186 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:55:45,239 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:45,302 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:45,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1467303891] [2020-07-21 22:55:45,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:45,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:55:45,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414806902] [2020-07-21 22:55:45,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:55:45,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:45,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:55:45,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:55:45,464 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:55:46,489 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:55:47,539 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:55:49,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:49,007 INFO L93 Difference]: Finished difference Result 740 states and 1084 transitions. [2020-07-21 22:55:49,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:55:49,011 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 151 [2020-07-21 22:55:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:49,019 INFO L225 Difference]: With dead ends: 740 [2020-07-21 22:55:49,019 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 22:55:49,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 279 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 22:55:49,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 22:55:49,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 393. [2020-07-21 22:55:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:55:49,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 534 transitions. [2020-07-21 22:55:49,098 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 534 transitions. Word has length 151 [2020-07-21 22:55:49,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:49,098 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 534 transitions. [2020-07-21 22:55:49,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:55:49,098 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 534 transitions. [2020-07-21 22:55:49,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 22:55:49,109 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:49,110 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:49,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:49,327 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:49,328 INFO L82 PathProgramCache]: Analyzing trace with hash 799190327, now seen corresponding path program 1 times [2020-07-21 22:55:49,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:49,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064150703] [2020-07-21 22:55:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:49,450 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:55:49,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:49,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-21 22:55:49,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:50,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:55:50,446 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 22:55:50,447 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 22:55:50,448 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 22:55:50,449 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:55:50,450 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:55:50,484 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 5, 1] term [2020-07-21 22:55:50,484 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:55:50,522 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:50,583 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:55:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:50,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064150703] [2020-07-21 22:55:50,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:55:50,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:55:50,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257300798] [2020-07-21 22:55:50,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:55:50,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:50,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:55:50,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:55:50,747 INFO L87 Difference]: Start difference. First operand 393 states and 534 transitions. Second operand 21 states. [2020-07-21 22:55:52,047 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-07-21 22:55:53,998 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 22:55:55,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:55,018 INFO L93 Difference]: Finished difference Result 902 states and 1244 transitions. [2020-07-21 22:55:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-21 22:55:55,019 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 155 [2020-07-21 22:55:55,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:55,027 INFO L225 Difference]: With dead ends: 902 [2020-07-21 22:55:55,027 INFO L226 Difference]: Without dead ends: 515 [2020-07-21 22:55:55,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 287 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=423, Invalid=1059, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 22:55:55,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-07-21 22:55:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 478. [2020-07-21 22:55:55,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 22:55:55,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 623 transitions. [2020-07-21 22:55:55,052 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 623 transitions. Word has length 155 [2020-07-21 22:55:55,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:55,052 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 623 transitions. [2020-07-21 22:55:55,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:55:55,053 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 623 transitions. [2020-07-21 22:55:55,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 22:55:55,056 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:55,056 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:55,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:55,266 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:55,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:55,267 INFO L82 PathProgramCache]: Analyzing trace with hash -393389681, now seen corresponding path program 1 times [2020-07-21 22:55:55,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:55,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652693938] [2020-07-21 22:55:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:55,368 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:55:55,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:55,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-21 22:55:55,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:55,414 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:55:55,415 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:55:55,415 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:55:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:55:55,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:55,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652693938] [2020-07-21 22:55:55,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:55,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 22:55:55,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955846478] [2020-07-21 22:55:55,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 22:55:55,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:55,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 22:55:55,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 22:55:55,497 INFO L87 Difference]: Start difference. First operand 478 states and 623 transitions. Second operand 4 states. [2020-07-21 22:55:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:56,208 INFO L93 Difference]: Finished difference Result 1039 states and 1410 transitions. [2020-07-21 22:55:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 22:55:56,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2020-07-21 22:55:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:56,212 INFO L225 Difference]: With dead ends: 1039 [2020-07-21 22:55:56,212 INFO L226 Difference]: Without dead ends: 478 [2020-07-21 22:55:56,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 22:55:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-07-21 22:55:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2020-07-21 22:55:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 22:55:56,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 620 transitions. [2020-07-21 22:55:56,231 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 620 transitions. Word has length 177 [2020-07-21 22:55:56,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:56,232 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 620 transitions. [2020-07-21 22:55:56,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 22:55:56,232 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 620 transitions. [2020-07-21 22:55:56,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-21 22:55:56,237 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:56,237 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:56,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:56,452 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:56,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:56,452 INFO L82 PathProgramCache]: Analyzing trace with hash 861806606, now seen corresponding path program 1 times [2020-07-21 22:55:56,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:56,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313930141] [2020-07-21 22:55:56,453 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:56,559 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:55:56,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:56,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:55:56,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:55:57,080 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-07-21 22:55:57,086 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 6, 2, 2, 1] term [2020-07-21 22:55:57,087 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-07-21 22:55:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:55:57,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:55:57,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313930141] [2020-07-21 22:55:57,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:55:57,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-21 22:55:57,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824101260] [2020-07-21 22:55:57,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 22:55:57,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:55:57,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 22:55:57,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:55:57,283 INFO L87 Difference]: Start difference. First operand 478 states and 620 transitions. Second operand 12 states. [2020-07-21 22:55:59,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:55:59,366 INFO L93 Difference]: Finished difference Result 1222 states and 1718 transitions. [2020-07-21 22:55:59,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 22:55:59,367 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2020-07-21 22:55:59,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:55:59,372 INFO L225 Difference]: With dead ends: 1222 [2020-07-21 22:55:59,372 INFO L226 Difference]: Without dead ends: 644 [2020-07-21 22:55:59,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:55:59,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-21 22:55:59,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 640. [2020-07-21 22:55:59,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-07-21 22:55:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 787 transitions. [2020-07-21 22:55:59,414 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 787 transitions. Word has length 176 [2020-07-21 22:55:59,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:55:59,415 INFO L479 AbstractCegarLoop]: Abstraction has 640 states and 787 transitions. [2020-07-21 22:55:59,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 22:55:59,416 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 787 transitions. [2020-07-21 22:55:59,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-21 22:55:59,419 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:55:59,420 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:55:59,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:59,634 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:55:59,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:55:59,635 INFO L82 PathProgramCache]: Analyzing trace with hash 495332580, now seen corresponding path program 1 times [2020-07-21 22:55:59,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:55:59,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068464142] [2020-07-21 22:55:59,636 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:55:59,732 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:55:59,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:55:59,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 54 conjunts are in the unsatisfiable core [2020-07-21 22:55:59,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:00,309 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 7, 1] term [2020-07-21 22:56:00,309 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-07-21 22:56:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:00,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:00,854 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-07-21 22:56:01,007 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-07-21 22:56:01,009 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:01,010 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:01,190 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:56:01,191 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:56:01,191 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:56:01,192 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:01,193 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:01,227 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:56:01,228 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:01,258 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 22:56:01,356 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 22:56:01,579 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:01,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068464142] [2020-07-21 22:56:01,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:01,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2020-07-21 22:56:01,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187899499] [2020-07-21 22:56:01,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-21 22:56:01,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:01,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-21 22:56:01,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-07-21 22:56:01,582 INFO L87 Difference]: Start difference. First operand 640 states and 787 transitions. Second operand 23 states. [2020-07-21 22:56:04,227 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-07-21 22:56:04,484 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-07-21 22:56:05,165 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-07-21 22:56:06,083 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-07-21 22:56:08,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:08,233 INFO L93 Difference]: Finished difference Result 1758 states and 2353 transitions. [2020-07-21 22:56:08,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-21 22:56:08,239 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 193 [2020-07-21 22:56:08,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:08,246 INFO L225 Difference]: With dead ends: 1758 [2020-07-21 22:56:08,246 INFO L226 Difference]: Without dead ends: 936 [2020-07-21 22:56:08,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 361 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=541, Invalid=1439, Unknown=0, NotChecked=0, Total=1980 [2020-07-21 22:56:08,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2020-07-21 22:56:08,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 878. [2020-07-21 22:56:08,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-07-21 22:56:08,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1054 transitions. [2020-07-21 22:56:08,287 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1054 transitions. Word has length 193 [2020-07-21 22:56:08,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:08,288 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1054 transitions. [2020-07-21 22:56:08,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-21 22:56:08,288 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1054 transitions. [2020-07-21 22:56:08,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-21 22:56:08,294 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:08,294 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:08,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:08,509 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:08,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:08,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1714360968, now seen corresponding path program 1 times [2020-07-21 22:56:08,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:08,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719333895] [2020-07-21 22:56:08,511 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:08,604 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:08,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:08,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 59 conjunts are in the unsatisfiable core [2020-07-21 22:56:08,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:09,227 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:09,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:09,647 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 22:56:09,648 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 22:56:09,649 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 22:56:09,650 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:56:09,651 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:09,674 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 5, 1] term [2020-07-21 22:56:09,675 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:09,716 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 22:56:09,811 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 22:56:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:10,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719333895] [2020-07-21 22:56:10,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:10,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:56:10,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696784735] [2020-07-21 22:56:10,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:56:10,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:10,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:56:10,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:56:10,013 INFO L87 Difference]: Start difference. First operand 878 states and 1054 transitions. Second operand 21 states. [2020-07-21 22:56:12,015 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-07-21 22:56:13,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:13,413 INFO L93 Difference]: Finished difference Result 2042 states and 2459 transitions. [2020-07-21 22:56:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-21 22:56:13,415 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 199 [2020-07-21 22:56:13,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:13,420 INFO L225 Difference]: With dead ends: 2042 [2020-07-21 22:56:13,421 INFO L226 Difference]: Without dead ends: 1158 [2020-07-21 22:56:13,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 375 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2020-07-21 22:56:13,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2020-07-21 22:56:13,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 952. [2020-07-21 22:56:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2020-07-21 22:56:13,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1131 transitions. [2020-07-21 22:56:13,480 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1131 transitions. Word has length 199 [2020-07-21 22:56:13,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:13,480 INFO L479 AbstractCegarLoop]: Abstraction has 952 states and 1131 transitions. [2020-07-21 22:56:13,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:56:13,481 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1131 transitions. [2020-07-21 22:56:13,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-21 22:56:13,485 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:13,486 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:13,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:13,701 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:13,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:13,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1377877812, now seen corresponding path program 1 times [2020-07-21 22:56:13,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:13,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126357670] [2020-07-21 22:56:13,703 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:13,810 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:13,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:13,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 44 conjunts are in the unsatisfiable core [2020-07-21 22:56:13,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:14,354 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:56:14,354 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:56:14,355 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:56:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 22:56:14,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:14,774 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 29 [2020-07-21 22:56:15,113 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 22:56:15,115 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:56:15,116 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 22:56:15,119 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:56:15,119 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:15,122 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 22:56:15,122 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 22:56:15,123 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:56:15,125 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:15,126 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:15,127 INFO L501 QuantifierPusher]: Distributing 11 disjuncts over 2 conjuncts [2020-07-21 22:56:15,128 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:15,128 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:15,130 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:15,130 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:15,131 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:56:15,136 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:15,532 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2020-07-21 22:56:15,534 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 2, 2, 4, 1] term [2020-07-21 22:56:15,535 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:15,591 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:56:15,595 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:56:15,679 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:15,718 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:15,743 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:15,941 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 22:56:15,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126357670] [2020-07-21 22:56:15,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:15,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2020-07-21 22:56:15,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878778059] [2020-07-21 22:56:15,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-21 22:56:15,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:15,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-21 22:56:15,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2020-07-21 22:56:15,944 INFO L87 Difference]: Start difference. First operand 952 states and 1131 transitions. Second operand 24 states. [2020-07-21 22:56:17,638 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-07-21 22:56:20,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:20,418 INFO L93 Difference]: Finished difference Result 2248 states and 2849 transitions. [2020-07-21 22:56:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-21 22:56:20,420 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 235 [2020-07-21 22:56:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:20,428 INFO L225 Difference]: With dead ends: 2248 [2020-07-21 22:56:20,428 INFO L226 Difference]: Without dead ends: 1302 [2020-07-21 22:56:20,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 444 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=391, Invalid=1091, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 22:56:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-07-21 22:56:20,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1253. [2020-07-21 22:56:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2020-07-21 22:56:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1503 transitions. [2020-07-21 22:56:20,477 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1503 transitions. Word has length 235 [2020-07-21 22:56:20,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:20,477 INFO L479 AbstractCegarLoop]: Abstraction has 1253 states and 1503 transitions. [2020-07-21 22:56:20,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-21 22:56:20,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1503 transitions. [2020-07-21 22:56:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-07-21 22:56:20,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:20,482 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:20,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:20,697 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:20,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:20,697 INFO L82 PathProgramCache]: Analyzing trace with hash -642992986, now seen corresponding path program 1 times [2020-07-21 22:56:20,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:20,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946366957] [2020-07-21 22:56:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:20,824 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:56:20,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:20,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:20,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:20,893 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 22:56:20,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:20,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946366957] [2020-07-21 22:56:20,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:20,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:56:20,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233677666] [2020-07-21 22:56:20,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:56:20,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:20,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:56:20,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:20,896 INFO L87 Difference]: Start difference. First operand 1253 states and 1503 transitions. Second operand 3 states. [2020-07-21 22:56:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:21,533 INFO L93 Difference]: Finished difference Result 2943 states and 3679 transitions. [2020-07-21 22:56:21,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:56:21,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-07-21 22:56:21,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:21,543 INFO L225 Difference]: With dead ends: 2943 [2020-07-21 22:56:21,543 INFO L226 Difference]: Without dead ends: 1696 [2020-07-21 22:56:21,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:21,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-07-21 22:56:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1694. [2020-07-21 22:56:21,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1694 states. [2020-07-21 22:56:21,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2093 transitions. [2020-07-21 22:56:21,588 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2093 transitions. Word has length 248 [2020-07-21 22:56:21,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:21,589 INFO L479 AbstractCegarLoop]: Abstraction has 1694 states and 2093 transitions. [2020-07-21 22:56:21,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:56:21,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2093 transitions. [2020-07-21 22:56:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-21 22:56:21,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:21,595 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 22:56:21,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:21,810 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:21,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:21,811 INFO L82 PathProgramCache]: Analyzing trace with hash -642837337, now seen corresponding path program 1 times [2020-07-21 22:56:21,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:21,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38272918] [2020-07-21 22:56:21,812 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:21,913 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:21,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:21,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:21,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:21,971 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 22:56:21,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:22,068 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 22:56:22,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38272918] [2020-07-21 22:56:22,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:22,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:22,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172466940] [2020-07-21 22:56:22,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:22,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:22,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:22,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:22,071 INFO L87 Difference]: Start difference. First operand 1694 states and 2093 transitions. Second operand 7 states. [2020-07-21 22:56:23,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:23,284 INFO L93 Difference]: Finished difference Result 4024 states and 5082 transitions. [2020-07-21 22:56:23,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:56:23,285 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 257 [2020-07-21 22:56:23,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:23,293 INFO L225 Difference]: With dead ends: 4024 [2020-07-21 22:56:23,293 INFO L226 Difference]: Without dead ends: 1961 [2020-07-21 22:56:23,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 509 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 22:56:23,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2020-07-21 22:56:23,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1760. [2020-07-21 22:56:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1760 states. [2020-07-21 22:56:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2109 transitions. [2020-07-21 22:56:23,342 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2109 transitions. Word has length 257 [2020-07-21 22:56:23,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:23,342 INFO L479 AbstractCegarLoop]: Abstraction has 1760 states and 2109 transitions. [2020-07-21 22:56:23,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2109 transitions. [2020-07-21 22:56:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-07-21 22:56:23,348 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:23,349 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:23,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:23,564 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:23,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:23,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1626490375, now seen corresponding path program 1 times [2020-07-21 22:56:23,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:23,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104704783] [2020-07-21 22:56:23,566 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 22:56:23,698 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:23,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:23,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:56:23,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-21 22:56:23,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 183 proven. 14 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-07-21 22:56:23,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104704783] [2020-07-21 22:56:23,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:23,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:23,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318949474] [2020-07-21 22:56:23,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:23,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:23,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:23,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:23,872 INFO L87 Difference]: Start difference. First operand 1760 states and 2109 transitions. Second operand 7 states. [2020-07-21 22:56:24,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:24,818 INFO L93 Difference]: Finished difference Result 4109 states and 5001 transitions. [2020-07-21 22:56:24,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:56:24,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 284 [2020-07-21 22:56:24,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:24,827 INFO L225 Difference]: With dead ends: 4109 [2020-07-21 22:56:24,828 INFO L226 Difference]: Without dead ends: 2354 [2020-07-21 22:56:24,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 564 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 22:56:24,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2020-07-21 22:56:24,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2340. [2020-07-21 22:56:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2340 states. [2020-07-21 22:56:24,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2340 states to 2340 states and 2748 transitions. [2020-07-21 22:56:24,881 INFO L78 Accepts]: Start accepts. Automaton has 2340 states and 2748 transitions. Word has length 284 [2020-07-21 22:56:24,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:24,882 INFO L479 AbstractCegarLoop]: Abstraction has 2340 states and 2748 transitions. [2020-07-21 22:56:24,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2340 states and 2748 transitions. [2020-07-21 22:56:24,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-07-21 22:56:24,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:24,889 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:25,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:25,106 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:25,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:25,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1744838644, now seen corresponding path program 1 times [2020-07-21 22:56:25,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:25,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834677117] [2020-07-21 22:56:25,107 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 22:56:25,245 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:25,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:25,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:25,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 22:56:25,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:25,392 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 22:56:25,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834677117] [2020-07-21 22:56:25,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:25,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:56:25,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228422028] [2020-07-21 22:56:25,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:56:25,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:25,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:56:25,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:56:25,395 INFO L87 Difference]: Start difference. First operand 2340 states and 2748 transitions. Second operand 6 states. [2020-07-21 22:56:25,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:25,848 INFO L93 Difference]: Finished difference Result 4057 states and 4772 transitions. [2020-07-21 22:56:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 22:56:25,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 299 [2020-07-21 22:56:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:25,849 INFO L225 Difference]: With dead ends: 4057 [2020-07-21 22:56:25,850 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:56:25,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 592 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:25,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:56:25,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:56:25,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:56:25,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:56:25,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 299 [2020-07-21 22:56:25,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:25,857 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:56:25,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:56:25,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:56:25,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:56:26,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:26,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:56:26,630 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 84 [2020-07-21 22:56:26,769 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 94 [2020-07-21 22:56:29,104 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 174 DAG size of output: 122 [2020-07-21 22:56:29,237 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2020-07-21 22:56:29,555 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 48 [2020-07-21 22:56:29,922 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 59 [2020-07-21 22:56:29,927 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:56:29,927 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (let ((.cse2 (not (= 1 |old(~a19~0)|))) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse5 (= 8 ~a17~0)) (.cse0 (<= ~a11~0 0)) (.cse4 (< 0 |old(~a11~0)|)) (.cse1 (not (= 1 ~a21~0)))) (and (or .cse0 (= 1 ~a11~0) .cse1 (< 1 |old(~a11~0)|)) (<= ~a17~0 |old(~a17~0)|) (or .cse2 .cse3 .cse4 .cse1 .cse5) (or .cse2 .cse3 (and (<= ~a25~0 0) .cse5) (< 0 |old(~a25~0)|) .cse1) (= ~a19~0 |old(~a19~0)|) (or .cse0 .cse4 .cse1))) [2020-07-21 22:56:29,928 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:56:29,928 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,928 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,928 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,928 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,929 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,929 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:56:29,929 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:56:29,929 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:56:29,929 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:56:29,929 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,930 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:56:29,931 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:56:29,932 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:56:29,932 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:56:29,932 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:56:29,932 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:56:29,932 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:56:29,932 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:56:29,932 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,932 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,933 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,933 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,933 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,933 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2020-07-21 22:56:29,933 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:56:29,933 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:56:29,934 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:56:29,934 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:56:29,934 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:56:29,934 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:56:29,934 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:56:29,934 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:56:29,934 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:56:29,934 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:56:29,934 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:56:29,935 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,935 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,935 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,935 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,935 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,935 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:56:29,935 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:56:29,935 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:56:29,936 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:56:29,937 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:56:29,938 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,939 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,940 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:56:29,941 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:56:29,942 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:56:29,942 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:56:29,942 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:56:29,942 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,942 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,942 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,942 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,942 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,943 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,943 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:56:29,943 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:56:29,943 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:56:29,943 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:56:29,943 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:56:29,943 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:56:29,943 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:56:29,944 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:56:29,944 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:56:29,944 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:56:29,944 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:56:29,944 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:56:29,944 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:56:29,944 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:56:29,944 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,945 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,945 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,945 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse17 (not (<= |old(~a19~0)| 0))) (.cse3 (not (<= |old(~a25~0)| 0))) (.cse25 (<= ~a25~0 |old(~a25~0)|)) (.cse18 (= 1 ~a11~0)) (.cse2 (= 9 ~a28~0)) (.cse7 (not (= 9 |old(~a28~0)|))) (.cse21 (not (= 1 |old(~a11~0)|))) (.cse22 (not (= 1 |old(~a25~0)|))) (.cse23 (= 1 ~a25~0)) (.cse10 (not (<= 8 |old(~a17~0)|))) (.cse12 (<= ~a17~0 8)) (.cse13 (<= 8 ~a17~0)) (.cse15 (= ~a19~0 |old(~a19~0)|)) (.cse19 (<= ~a25~0 0)) (.cse11 (not (<= |old(~a17~0)| 8))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse16 (not (= 10 |old(~a28~0)|))) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse20 (= 10 ~a28~0)) (.cse4 (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|)))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse8 (not (< |old(~a11~0)| 2))) (.cse9 (not (<= |old(~a28~0)| 9))) (.cse24 (<= ~a11~0 |old(~a11~0)|)) (.cse14 (<= ~a28~0 9)) (.cse5 (not (= 1 ~a21~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse9 .cse10 .cse11 .cse5 (and .cse12 .cse13 .cse14 .cse15 (< ~a11~0 2))) (or .cse0 .cse10 .cse3 (not (= 7 |old(~a28~0)|)) (= 7 ~a28~0) .cse4 .cse5 .cse11 .cse6) (or .cse16 .cse3 .cse17 (and .cse18 (= 7 ~a17~0) .cse19 .cse20 (<= ~a19~0 0)) (not (= 7 |old(~a17~0)|)) .cse5 .cse21) (or .cse0 .cse1 .cse22 .cse4 .cse5 .cse6 .cse7 (and .cse2 .cse23)) (or .cse16 .cse1 (and .cse24 .cse20 .cse15 (= 8 ~a17~0) .cse23) .cse22 .cse17 .cse4 .cse5 .cse6) (or .cse0 (and .cse18 .cse2 .cse25) .cse1 .cse3 .cse4 .cse5 .cse7 .cse21) (or .cse0 .cse10 .cse3 .cse25 .cse11 .cse5 .cse6) (or .cse0 .cse1 .cse22 (and .cse18 .cse2 .cse23) .cse4 .cse5 .cse7 .cse21) (or .cse0 .cse10 .cse22 (not (= 8 |old(~a28~0)|)) .cse4 (and (= 8 ~a28~0) .cse23) .cse11 .cse5 .cse6) (or .cse24 .cse9 .cse11 .cse5 .cse6) (or .cse0 .cse1 (not (= 11 |old(~a28~0)|)) .cse22 .cse4 .cse5 .cse6 (and (= 11 ~a28~0) .cse23)) (or .cse0 .cse8 .cse10 (and .cse24 .cse12 .cse13 .cse15 (or (< 0 |old(~a25~0)|) .cse19)) .cse11 .cse5) (or .cse0 .cse16 .cse1 .cse20 .cse4 .cse5 .cse6) (or .cse8 .cse9 (and .cse24 (<= ~a17~0 |old(~a17~0)|) .cse14) (not (<= |old(~a17~0)| 7)) .cse5))) [2020-07-21 22:56:29,945 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,945 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,946 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,946 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:56:29,946 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:56:29,946 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:56:29,946 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:56:29,946 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:56:29,946 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:56:29,946 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:56:29,947 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:56:29,947 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:56:29,947 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:56:29,947 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:56:29,947 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:56:29,947 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:56:29,947 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,947 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,948 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,948 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,948 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,948 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,948 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:56:29,948 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:56:29,948 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:56:29,948 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:56:29,949 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:56:29,949 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:56:29,949 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:56:29,949 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:56:29,949 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:56:29,949 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:56:29,949 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:56:29,949 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:56:29,950 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:56:29,950 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:56:29,950 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:56:29,950 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:56:29,950 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,950 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,950 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,951 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,951 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:29,951 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:56:29,951 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:56:29,951 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:56:29,951 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:56:29,951 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:56:29,951 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:56:29,952 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:56:29,952 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:56:29,952 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:56:29,952 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:56:29,952 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:56:29,952 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:56:29,952 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:56:29,952 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:56:29,953 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:56:29,953 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:56:29,953 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:56:29,953 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:56:29,953 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:56:29,953 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:56:29,953 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 22:56:29,954 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:56:29,954 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:56:29,954 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)|) (= 7 ~a28~0) (<= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:56:29,954 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8)) (.cse1 (< ~a11~0 2)) (.cse2 (= 10 ~a28~0)) (.cse3 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1) (not (= 8 |old(~a17~0)|)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and (= 1 ~a19~0) .cse0 (<= 8 ~a17~0) .cse1) (and (= 1 ~a11~0) (= 7 ~a17~0) (<= ~a25~0 0) .cse2 .cse3) (and (<= ~a11~0 0) .cse2 .cse3 (= 8 ~a17~0) (= 1 ~a25~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 22:56:29,954 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:56:29,954 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:56:29,955 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8)) (.cse1 (< ~a11~0 2)) (.cse2 (= 10 ~a28~0)) (.cse3 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1) (not (= 8 |old(~a17~0)|)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and (= 1 ~a19~0) .cse0 (<= 8 ~a17~0) .cse1) (and (= 1 ~a11~0) (= 7 ~a17~0) (<= ~a25~0 0) .cse2 .cse3) (and (<= ~a11~0 0) .cse2 .cse3 (= 8 ~a17~0) (or (= 1 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0)) (= 1 ~a25~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 22:56:29,955 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:56:29,955 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:56:29,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:56:29 BoogieIcfgContainer [2020-07-21 22:56:29,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:56:29,978 INFO L168 Benchmark]: Toolchain (without parser) took 50553.55 ms. Allocated memory was 141.0 MB in the beginning and 615.5 MB in the end (delta: 474.5 MB). Free memory was 98.6 MB in the beginning and 80.3 MB in the end (delta: 18.3 MB). Peak memory consumption was 492.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:29,979 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 141.0 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 22:56:29,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.71 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 98.2 MB in the beginning and 169.5 MB in the end (delta: -71.3 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:29,980 INFO L168 Benchmark]: Boogie Preprocessor took 123.26 ms. Allocated memory is still 202.9 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:29,981 INFO L168 Benchmark]: RCFGBuilder took 1230.62 ms. Allocated memory was 202.9 MB in the beginning and 231.7 MB in the end (delta: 28.8 MB). Free memory was 164.4 MB in the beginning and 178.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:29,982 INFO L168 Benchmark]: TraceAbstraction took 48447.36 ms. Allocated memory was 231.7 MB in the beginning and 615.5 MB in the end (delta: 383.8 MB). Free memory was 178.9 MB in the beginning and 80.3 MB in the end (delta: 98.7 MB). Peak memory consumption was 482.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:29,984 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 141.0 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.71 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 98.2 MB in the beginning and 169.5 MB in the end (delta: -71.3 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.26 ms. Allocated memory is still 202.9 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1230.62 ms. Allocated memory was 202.9 MB in the beginning and 231.7 MB in the end (delta: 28.8 MB). Free memory was 164.4 MB in the beginning and 178.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 48447.36 ms. Allocated memory was 231.7 MB in the beginning and 615.5 MB in the end (delta: 383.8 MB). Free memory was 178.9 MB in the beginning and 80.3 MB in the end (delta: 98.7 MB). Peak memory consumption was 482.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: 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 <= 8 && a28 <= 9) && a11 < 2)) || !(8 == \old(a17))) || !(7 == \old(a28))) || !(\old(a25) <= 0)) || (((1 == a19 && a17 <= 8) && 8 <= a17) && a11 < 2)) || ((((1 == a11 && 7 == a17) && a25 <= 0) && 10 == a28) && a19 <= 0)) || ((((a11 <= 0 && 10 == a28) && a19 <= 0) && 8 == a17) && 1 == a25)) || !(1 == a21)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 44.4s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 29.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 821 SDtfs, 7676 SDslu, 1949 SDs, 0 SdLazy, 22098 SolverSat, 1569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4392 GetRequests, 4129 SyntacticMatches, 18 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1989 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2340occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 603 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 128 PreInvPairs, 179 NumberOfFragments, 990 HoareAnnotationTreeSize, 128 FomulaSimplifications, 22191 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4908 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 2516 NumberOfCodeBlocks, 1789 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 4269 ConstructedInterpolants, 0 QuantifiedInterpolants, 10499770 SizeOfPredicates, 127 NumberOfNonLiveVariables, 4607 ConjunctsInSsa, 372 ConjunctsInUnsatCore, 20 InterpolantComputations, 4 PerfectInterpolantSequences, 1739/2137 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...