/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 DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:10:27,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:10:27,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:10:27,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:10:27,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:10:27,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:10:27,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:10:27,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:10:27,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:10:27,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:10:27,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:10:27,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:10:27,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:10:27,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:10:27,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:10:27,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:10:27,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:10:27,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:10:27,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:10:27,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:10:27,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:10:27,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:10:27,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:10:27,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:10:27,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:10:27,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:10:27,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:10:27,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:10:27,112 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 20:10:27,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:10:27,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:10:27,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:10:27,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:10:27,150 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:10:27,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:10:27,151 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:10:27,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:10:27,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:10:27,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:10:27,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:10:27,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:10:27,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:10:27,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:10:27,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:10:27,155 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:10:27,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:10:27,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:10:27,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:10:27,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:10:27,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:10:27,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:10:27,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:10:27,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:10:27,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:10:27,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:10:27,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:27,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:10:27,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:10:27,159 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 -> DAGSIZE 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 -> 2 [2020-07-21 20:10:27,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:10:27,461 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:10:27,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:10:27,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:10:27,467 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:10:27,468 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 20:10:27,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa98ff98/278fd776c2ce46d98348fb899d67e1d0/FLAG7d75936b6 [2020-07-21 20:10:28,068 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:10:28,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 20:10:28,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa98ff98/278fd776c2ce46d98348fb899d67e1d0/FLAG7d75936b6 [2020-07-21 20:10:28,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa98ff98/278fd776c2ce46d98348fb899d67e1d0 [2020-07-21 20:10:28,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:10:28,369 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:10:28,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:28,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:10:28,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:10:28,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:28" (1/1) ... [2020-07-21 20:10:28,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd08649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:28, skipping insertion in model container [2020-07-21 20:10:28,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:28" (1/1) ... [2020-07-21 20:10:28,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:10:28,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:10:28,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:28,956 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:10:29,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:29,141 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:10:29,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29 WrapperNode [2020-07-21 20:10:29,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:29,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:10:29,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:10:29,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:10:29,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29" (1/1) ... [2020-07-21 20:10:29,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29" (1/1) ... [2020-07-21 20:10:29,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29" (1/1) ... [2020-07-21 20:10:29,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29" (1/1) ... [2020-07-21 20:10:29,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29" (1/1) ... [2020-07-21 20:10:29,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29" (1/1) ... [2020-07-21 20:10:29,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29" (1/1) ... [2020-07-21 20:10:29,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:10:29,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:10:29,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:10:29,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:10:29,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29" (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 20:10:29,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:10:29,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:10:29,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:10:29,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:10:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:10:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:10:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:10:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:10:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:10:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:10:29,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:10:30,515 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:10:30,516 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:10:30,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:10:30 BoogieIcfgContainer [2020-07-21 20:10:30,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:10:30,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:10:30,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:10:30,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:10:30,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:10:28" (1/3) ... [2020-07-21 20:10:30,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:10:30, skipping insertion in model container [2020-07-21 20:10:30,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:29" (2/3) ... [2020-07-21 20:10:30,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:10:30, skipping insertion in model container [2020-07-21 20:10:30,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:10:30" (3/3) ... [2020-07-21 20:10:30,537 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-07-21 20:10:30,549 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:10:30,563 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:10:30,578 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:10:30,620 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:10:30,621 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:10:30,621 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:10:30,621 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:10:30,621 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:10:30,622 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:10:30,622 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:10:30,622 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:10:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 20:10:30,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 20:10:30,682 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:30,684 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] [2020-07-21 20:10:30,685 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:30,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1960329542, now seen corresponding path program 1 times [2020-07-21 20:10:30,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:30,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256160405] [2020-07-21 20:10:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:30,938 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:30,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:30,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:10:30,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:31,112 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 20:10:31,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:31,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256160405] [2020-07-21 20:10:31,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:31,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:31,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568732161] [2020-07-21 20:10:31,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:31,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:31,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:31,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:31,149 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 20:10:32,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:32,101 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 20:10:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:32,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-07-21 20:10:32,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:32,120 INFO L225 Difference]: With dead ends: 619 [2020-07-21 20:10:32,120 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 20:10:32,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 20:10:32,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 20:10:32,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 20:10:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 20:10:32,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 20:10:32,197 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 116 [2020-07-21 20:10:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:32,199 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 20:10:32,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:32,199 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 20:10:32,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 20:10:32,204 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:32,204 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] [2020-07-21 20:10:32,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:32,419 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:32,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:32,420 INFO L82 PathProgramCache]: Analyzing trace with hash 539238327, now seen corresponding path program 1 times [2020-07-21 20:10:32,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:32,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276875547] [2020-07-21 20:10:32,421 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:32,563 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:32,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:32,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:32,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:32,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:32,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:32,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276875547] [2020-07-21 20:10:32,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:32,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:32,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402977274] [2020-07-21 20:10:32,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:32,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:32,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:32,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:32,637 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 20:10:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:33,293 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-21 20:10:33,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:33,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-21 20:10:33,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:33,301 INFO L225 Difference]: With dead ends: 782 [2020-07-21 20:10:33,302 INFO L226 Difference]: Without dead ends: 469 [2020-07-21 20:10:33,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 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 20:10:33,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-21 20:10:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-21 20:10:33,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-21 20:10:33,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-21 20:10:33,350 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 125 [2020-07-21 20:10:33,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:33,351 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-21 20:10:33,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:33,351 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-21 20:10:33,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 20:10:33,354 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:33,354 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 20:10:33,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:33,569 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:33,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1524654879, now seen corresponding path program 1 times [2020-07-21 20:10:33,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:33,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074814429] [2020-07-21 20:10:33,572 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:33,686 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:33,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:33,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:33,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:33,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:33,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074814429] [2020-07-21 20:10:33,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:33,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:33,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084379553] [2020-07-21 20:10:33,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:33,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:33,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:33,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:33,773 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 3 states. [2020-07-21 20:10:34,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:34,356 INFO L93 Difference]: Finished difference Result 1378 states and 1794 transitions. [2020-07-21 20:10:34,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:34,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 20:10:34,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:34,368 INFO L225 Difference]: With dead ends: 1378 [2020-07-21 20:10:34,369 INFO L226 Difference]: Without dead ends: 915 [2020-07-21 20:10:34,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:34,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-07-21 20:10:34,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 909. [2020-07-21 20:10:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-07-21 20:10:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1153 transitions. [2020-07-21 20:10:34,421 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1153 transitions. Word has length 137 [2020-07-21 20:10:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:34,422 INFO L479 AbstractCegarLoop]: Abstraction has 909 states and 1153 transitions. [2020-07-21 20:10:34,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1153 transitions. [2020-07-21 20:10:34,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 20:10:34,430 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:34,431 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-07-21 20:10:34,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:34,649 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:34,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:34,650 INFO L82 PathProgramCache]: Analyzing trace with hash -689459332, now seen corresponding path program 1 times [2020-07-21 20:10:34,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:34,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683824310] [2020-07-21 20:10:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:34,768 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:34,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:34,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:34,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 20:10:34,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:34,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683824310] [2020-07-21 20:10:34,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:34,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:34,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876409540] [2020-07-21 20:10:34,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:34,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:34,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:34,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:34,811 INFO L87 Difference]: Start difference. First operand 909 states and 1153 transitions. Second operand 3 states. [2020-07-21 20:10:35,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:35,453 INFO L93 Difference]: Finished difference Result 2101 states and 2761 transitions. [2020-07-21 20:10:35,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:35,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-07-21 20:10:35,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:35,467 INFO L225 Difference]: With dead ends: 2101 [2020-07-21 20:10:35,467 INFO L226 Difference]: Without dead ends: 1198 [2020-07-21 20:10:35,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 20:10:35,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-07-21 20:10:35,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1197. [2020-07-21 20:10:35,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-07-21 20:10:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1554 transitions. [2020-07-21 20:10:35,529 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1554 transitions. Word has length 145 [2020-07-21 20:10:35,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:35,530 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1554 transitions. [2020-07-21 20:10:35,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:35,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1554 transitions. [2020-07-21 20:10:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 20:10:35,535 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:35,535 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:35,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:35,749 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:35,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:35,750 INFO L82 PathProgramCache]: Analyzing trace with hash 2094439476, now seen corresponding path program 1 times [2020-07-21 20:10:35,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:35,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009664614] [2020-07-21 20:10:35,751 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:35,853 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:35,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:35,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:35,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:35,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:35,998 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:35,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009664614] [2020-07-21 20:10:35,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:35,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:35,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298999004] [2020-07-21 20:10:35,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:36,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:36,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:36,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:36,001 INFO L87 Difference]: Start difference. First operand 1197 states and 1554 transitions. Second operand 6 states. [2020-07-21 20:10:37,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:37,076 INFO L93 Difference]: Finished difference Result 2745 states and 3656 transitions. [2020-07-21 20:10:37,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:37,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2020-07-21 20:10:37,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:37,087 INFO L225 Difference]: With dead ends: 2745 [2020-07-21 20:10:37,088 INFO L226 Difference]: Without dead ends: 1554 [2020-07-21 20:10:37,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 294 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:37,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2020-07-21 20:10:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1525. [2020-07-21 20:10:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2020-07-21 20:10:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1965 transitions. [2020-07-21 20:10:37,146 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1965 transitions. Word has length 149 [2020-07-21 20:10:37,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:37,147 INFO L479 AbstractCegarLoop]: Abstraction has 1525 states and 1965 transitions. [2020-07-21 20:10:37,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1965 transitions. [2020-07-21 20:10:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 20:10:37,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:37,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:37,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:37,367 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:37,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:37,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1890827528, now seen corresponding path program 1 times [2020-07-21 20:10:37,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:37,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870022185] [2020-07-21 20:10:37,368 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:37,465 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:37,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:37,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:37,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:37,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:37,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870022185] [2020-07-21 20:10:37,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:37,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:37,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283225168] [2020-07-21 20:10:37,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:37,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:37,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:37,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:37,505 INFO L87 Difference]: Start difference. First operand 1525 states and 1965 transitions. Second operand 3 states. [2020-07-21 20:10:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:38,126 INFO L93 Difference]: Finished difference Result 4536 states and 5943 transitions. [2020-07-21 20:10:38,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:38,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-21 20:10:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:38,144 INFO L225 Difference]: With dead ends: 4536 [2020-07-21 20:10:38,144 INFO L226 Difference]: Without dead ends: 3017 [2020-07-21 20:10:38,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 20:10:38,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2020-07-21 20:10:38,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3017. [2020-07-21 20:10:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-07-21 20:10:38,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3879 transitions. [2020-07-21 20:10:38,231 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3879 transitions. Word has length 153 [2020-07-21 20:10:38,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:38,231 INFO L479 AbstractCegarLoop]: Abstraction has 3017 states and 3879 transitions. [2020-07-21 20:10:38,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:38,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3879 transitions. [2020-07-21 20:10:38,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 20:10:38,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:38,241 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 20:10:38,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:38,456 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:38,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:38,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1324893951, now seen corresponding path program 1 times [2020-07-21 20:10:38,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:38,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045663429] [2020-07-21 20:10:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:38,562 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:38,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:38,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:38,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 20:10:38,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:38,685 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 20:10:38,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045663429] [2020-07-21 20:10:38,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:38,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:38,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696801293] [2020-07-21 20:10:38,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:38,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:38,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:38,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:38,687 INFO L87 Difference]: Start difference. First operand 3017 states and 3879 transitions. Second operand 6 states. [2020-07-21 20:10:39,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:39,530 INFO L93 Difference]: Finished difference Result 6088 states and 7892 transitions. [2020-07-21 20:10:39,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:10:39,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-07-21 20:10:39,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:39,547 INFO L225 Difference]: With dead ends: 6088 [2020-07-21 20:10:39,547 INFO L226 Difference]: Without dead ends: 3077 [2020-07-21 20:10:39,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:39,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2020-07-21 20:10:39,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 3055. [2020-07-21 20:10:39,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3055 states. [2020-07-21 20:10:39,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 3691 transitions. [2020-07-21 20:10:39,669 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 3691 transitions. Word has length 165 [2020-07-21 20:10:39,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:39,669 INFO L479 AbstractCegarLoop]: Abstraction has 3055 states and 3691 transitions. [2020-07-21 20:10:39,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:39,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 3691 transitions. [2020-07-21 20:10:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 20:10:39,682 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:39,683 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:39,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:39,898 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:39,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:39,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1116878025, now seen corresponding path program 1 times [2020-07-21 20:10:39,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:39,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431059607] [2020-07-21 20:10:39,899 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:40,011 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:40,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:40,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:10:40,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:40,059 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 20:10:40,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:40,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431059607] [2020-07-21 20:10:40,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:40,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:10:40,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738062878] [2020-07-21 20:10:40,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:10:40,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:40,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:10:40,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:10:40,062 INFO L87 Difference]: Start difference. First operand 3055 states and 3691 transitions. Second operand 5 states. [2020-07-21 20:10:40,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:40,912 INFO L93 Difference]: Finished difference Result 8100 states and 10229 transitions. [2020-07-21 20:10:40,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:40,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-07-21 20:10:40,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:40,939 INFO L225 Difference]: With dead ends: 8100 [2020-07-21 20:10:40,939 INFO L226 Difference]: Without dead ends: 5051 [2020-07-21 20:10:40,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:10:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2020-07-21 20:10:41,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 4979. [2020-07-21 20:10:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4979 states. [2020-07-21 20:10:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 5904 transitions. [2020-07-21 20:10:41,085 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 5904 transitions. Word has length 167 [2020-07-21 20:10:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:41,086 INFO L479 AbstractCegarLoop]: Abstraction has 4979 states and 5904 transitions. [2020-07-21 20:10:41,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:10:41,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 5904 transitions. [2020-07-21 20:10:41,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-21 20:10:41,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:41,102 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:41,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:41,316 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:41,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:41,317 INFO L82 PathProgramCache]: Analyzing trace with hash -27942242, now seen corresponding path program 1 times [2020-07-21 20:10:41,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:41,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017308668] [2020-07-21 20:10:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:41,454 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:41,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:41,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:41,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:41,582 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-07-21 20:10:41,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:41,687 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 120 proven. 39 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-21 20:10:41,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017308668] [2020-07-21 20:10:41,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:41,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:41,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230620735] [2020-07-21 20:10:41,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:41,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:41,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:41,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:41,689 INFO L87 Difference]: Start difference. First operand 4979 states and 5904 transitions. Second operand 6 states. [2020-07-21 20:10:42,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:42,453 INFO L93 Difference]: Finished difference Result 9959 states and 11817 transitions. [2020-07-21 20:10:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:42,454 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-07-21 20:10:42,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:42,471 INFO L225 Difference]: With dead ends: 9959 [2020-07-21 20:10:42,471 INFO L226 Difference]: Without dead ends: 4373 [2020-07-21 20:10:42,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:42,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2020-07-21 20:10:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4362. [2020-07-21 20:10:42,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4362 states. [2020-07-21 20:10:42,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 5018 transitions. [2020-07-21 20:10:42,618 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 5018 transitions. Word has length 235 [2020-07-21 20:10:42,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:42,619 INFO L479 AbstractCegarLoop]: Abstraction has 4362 states and 5018 transitions. [2020-07-21 20:10:42,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:42,619 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 5018 transitions. [2020-07-21 20:10:42,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-21 20:10:42,631 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:42,632 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:42,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:42,847 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:42,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:42,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1585046762, now seen corresponding path program 1 times [2020-07-21 20:10:42,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:42,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677986022] [2020-07-21 20:10:42,848 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:42,983 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:42,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:42,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:42,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-21 20:10:43,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:43,125 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 144 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 20:10:43,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677986022] [2020-07-21 20:10:43,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:43,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:10:43,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750523837] [2020-07-21 20:10:43,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:10:43,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:43,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:10:43,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:43,127 INFO L87 Difference]: Start difference. First operand 4362 states and 5018 transitions. Second operand 7 states. [2020-07-21 20:10:44,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:44,586 INFO L93 Difference]: Finished difference Result 9712 states and 11161 transitions. [2020-07-21 20:10:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:44,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-07-21 20:10:44,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:44,607 INFO L225 Difference]: With dead ends: 9712 [2020-07-21 20:10:44,607 INFO L226 Difference]: Without dead ends: 5356 [2020-07-21 20:10:44,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 473 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 20:10:44,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2020-07-21 20:10:44,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 3478. [2020-07-21 20:10:44,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3478 states. [2020-07-21 20:10:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 3796 transitions. [2020-07-21 20:10:44,707 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 3796 transitions. Word has length 239 [2020-07-21 20:10:44,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:44,708 INFO L479 AbstractCegarLoop]: Abstraction has 3478 states and 3796 transitions. [2020-07-21 20:10:44,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:10:44,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 3796 transitions. [2020-07-21 20:10:44,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-21 20:10:44,719 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:44,721 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:44,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:44,934 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:44,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:44,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1885983282, now seen corresponding path program 1 times [2020-07-21 20:10:44,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:44,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181268706] [2020-07-21 20:10:44,936 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:45,083 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:45,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:45,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:45,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:45,164 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-21 20:10:45,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 151 proven. 13 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-21 20:10:45,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181268706] [2020-07-21 20:10:45,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:45,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:10:45,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551781599] [2020-07-21 20:10:45,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:10:45,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:45,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:10:45,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:45,361 INFO L87 Difference]: Start difference. First operand 3478 states and 3796 transitions. Second operand 7 states. [2020-07-21 20:10:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:46,708 INFO L93 Difference]: Finished difference Result 8111 states and 8911 transitions. [2020-07-21 20:10:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:10:46,709 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-07-21 20:10:46,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:46,734 INFO L225 Difference]: With dead ends: 8111 [2020-07-21 20:10:46,735 INFO L226 Difference]: Without dead ends: 3460 [2020-07-21 20:10:46,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 487 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 20:10:46,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2020-07-21 20:10:46,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3314. [2020-07-21 20:10:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3314 states. [2020-07-21 20:10:46,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3314 states to 3314 states and 3562 transitions. [2020-07-21 20:10:46,819 INFO L78 Accepts]: Start accepts. Automaton has 3314 states and 3562 transitions. Word has length 246 [2020-07-21 20:10:46,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:46,819 INFO L479 AbstractCegarLoop]: Abstraction has 3314 states and 3562 transitions. [2020-07-21 20:10:46,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:10:46,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3314 states and 3562 transitions. [2020-07-21 20:10:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-21 20:10:46,829 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:46,830 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:47,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:47,045 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:47,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:47,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1018854099, now seen corresponding path program 1 times [2020-07-21 20:10:47,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:47,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514325864] [2020-07-21 20:10:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:10:47,187 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:47,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:47,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:47,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-07-21 20:10:47,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:47,408 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 152 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-21 20:10:47,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514325864] [2020-07-21 20:10:47,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:47,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:10:47,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141029151] [2020-07-21 20:10:47,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:10:47,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:47,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:10:47,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:47,411 INFO L87 Difference]: Start difference. First operand 3314 states and 3562 transitions. Second operand 7 states. [2020-07-21 20:10:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:47,913 INFO L93 Difference]: Finished difference Result 6455 states and 6951 transitions. [2020-07-21 20:10:47,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:10:47,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2020-07-21 20:10:47,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:47,926 INFO L225 Difference]: With dead ends: 6455 [2020-07-21 20:10:47,927 INFO L226 Difference]: Without dead ends: 3147 [2020-07-21 20:10:47,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 494 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:10:47,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2020-07-21 20:10:47,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3141. [2020-07-21 20:10:47,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3141 states. [2020-07-21 20:10:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 3339 transitions. [2020-07-21 20:10:47,982 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 3339 transitions. Word has length 250 [2020-07-21 20:10:47,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:47,982 INFO L479 AbstractCegarLoop]: Abstraction has 3141 states and 3339 transitions. [2020-07-21 20:10:47,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:10:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 3339 transitions. [2020-07-21 20:10:47,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-21 20:10:47,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:47,992 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:48,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:48,206 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:48,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:48,206 INFO L82 PathProgramCache]: Analyzing trace with hash 631595354, now seen corresponding path program 1 times [2020-07-21 20:10:48,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:48,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365077547] [2020-07-21 20:10:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:48,352 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:48,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:48,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 20:10:48,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:48,454 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-07-21 20:10:48,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:48,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365077547] [2020-07-21 20:10:48,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:48,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:48,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360881579] [2020-07-21 20:10:48,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:48,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:48,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:48,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:48,456 INFO L87 Difference]: Start difference. First operand 3141 states and 3339 transitions. Second operand 3 states. [2020-07-21 20:10:48,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:48,919 INFO L93 Difference]: Finished difference Result 5070 states and 5390 transitions. [2020-07-21 20:10:48,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:48,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-07-21 20:10:48,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:48,921 INFO L225 Difference]: With dead ends: 5070 [2020-07-21 20:10:48,921 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:10:48,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 269 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 20:10:48,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:10:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:10:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:10:48,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:10:48,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 271 [2020-07-21 20:10:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:48,934 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:10:48,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:10:48,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:10:49,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:49,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:10:49,709 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 141 [2020-07-21 20:10:49,873 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 141 [2020-07-21 20:10:52,286 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 181 DAG size of output: 98 [2020-07-21 20:10:53,177 WARN L193 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 69 [2020-07-21 20:10:54,069 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 69 [2020-07-21 20:10:54,074 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:54,074 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-21 20:10:54,074 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:54,075 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,075 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,075 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,076 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,076 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,076 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 20:10:54,076 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 20:10:54,076 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 20:10:54,076 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 20:10:54,077 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 20:10:54,077 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 20:10:54,077 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 20:10:54,077 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 20:10:54,077 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 20:10:54,077 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 20:10:54,077 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:54,077 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:54,078 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 20:10:54,078 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,078 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,078 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,078 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,078 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 20:10:54,078 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,078 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 20:10:54,079 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 20:10:54,079 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 20:10:54,079 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 20:10:54,079 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 20:10:54,079 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 20:10:54,079 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 20:10:54,079 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:54,080 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:54,080 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 20:10:54,080 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 20:10:54,080 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 20:10:54,080 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:54,080 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:54,080 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 20:10:54,080 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,081 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,081 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,081 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,081 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,084 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 502) no Hoare annotation was computed. [2020-07-21 20:10:54,084 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:54,085 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 20:10:54,085 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:54,085 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 20:10:54,085 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 20:10:54,085 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 20:10:54,085 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 20:10:54,085 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 20:10:54,085 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 20:10:54,085 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 20:10:54,086 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 20:10:54,086 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,086 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,086 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,086 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,086 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,086 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 20:10:54,086 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 20:10:54,087 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 20:10:54,087 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 20:10:54,087 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 20:10:54,087 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 20:10:54,087 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 20:10:54,087 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 20:10:54,087 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 20:10:54,087 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 20:10:54,087 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 20:10:54,088 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 20:10:54,089 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 20:10:54,089 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,090 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,090 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,090 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,090 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,090 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 20:10:54,090 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 20:10:54,090 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 20:10:54,091 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 20:10:54,091 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 20:10:54,091 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 20:10:54,091 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 20:10:54,091 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 20:10:54,091 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 20:10:54,091 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 20:10:54,091 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 20:10:54,091 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 20:10:54,092 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 20:10:54,092 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:54,092 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 20:10:54,092 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:54,092 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,092 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,092 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,092 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,093 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 20:10:54,094 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,094 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:54,094 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,094 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:54,094 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:54,094 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:54,094 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,094 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,094 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 20:10:54,095 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 20:10:54,095 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 20:10:54,095 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 20:10:54,095 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 20:10:54,095 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 20:10:54,095 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 20:10:54,095 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 20:10:54,095 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 20:10:54,095 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 20:10:54,096 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 20:10:54,096 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,096 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,096 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,096 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,096 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,096 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,096 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 20:10:54,096 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 20:10:54,097 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 20:10:54,097 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 20:10:54,097 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 20:10:54,097 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 20:10:54,097 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 20:10:54,097 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 20:10:54,097 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 20:10:54,097 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 20:10:54,097 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 20:10:54,098 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,098 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,098 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,098 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,098 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,098 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,098 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 20:10:54,098 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 20:10:54,098 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 20:10:54,099 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 20:10:54,099 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 20:10:54,099 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 20:10:54,099 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 20:10:54,099 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 20:10:54,099 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 20:10:54,099 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 20:10:54,099 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 20:10:54,099 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 20:10:54,100 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 20:10:54,100 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 20:10:54,100 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,100 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,100 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,100 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse20 (<= ~a17~0 8)) (.cse21 (<= 8 ~a17~0)) (.cse24 (not (= 1 ~a11~0))) (.cse4 (<= ~a17~0 |old(~a17~0)|)) (.cse23 (<= ~a28~0 |old(~a28~0)|)) (.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse7 (<= |old(~a28~0)| ~a28~0))) (let ((.cse9 (and .cse4 .cse23 .cse6 .cse7)) (.cse5 (<= ~a28~0 9)) (.cse0 (not (<= 9 |old(~a28~0)|))) (.cse14 (not (<= 11 |old(~a28~0)|))) (.cse27 (and .cse23 .cse20 .cse21 .cse6 .cse24 .cse7)) (.cse3 (not (<= |old(~a17~0)| 7))) (.cse8 (not (= 1 |old(~a19~0)|))) (.cse12 (<= ~a25~0 0)) (.cse15 (not (<= |old(~a28~0)| 10))) (.cse19 (<= ~a28~0 10)) (.cse17 (not (<= 10 |old(~a28~0)|))) (.cse22 (= 1 |old(~a11~0)|)) (.cse16 (<= ~a11~0 0)) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse11 (not (<= |old(~a25~0)| 0))) (.cse18 (not (<= |old(~a11~0)| 0))) (.cse25 (not (<= |old(~a28~0)| 7))) (.cse10 (not (<= 8 |old(~a17~0)|))) (.cse2 (not (<= |old(~a19~0)| 0))) (.cse26 (and .cse23 .cse20 .cse21 .cse6 .cse7)) (.cse13 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7)) (or .cse8 .cse1 .cse3 .cse9) (or .cse8 .cse0 .cse1 .cse10 .cse11 .cse12 .cse13) (or .cse8 .cse14 .cse3 .cse9) (or .cse15 .cse16 .cse10 .cse2 .cse17 .cse13 .cse18) (or .cse8 .cse15 (and .cse19 .cse6 .cse7) .cse17) (or .cse8 .cse15 .cse16 .cse17 .cse18) (or .cse8 .cse0 .cse1 .cse10 (and .cse20 .cse21 .cse5 .cse6 .cse7) .cse13) (or .cse22 .cse1 .cse10 .cse11 .cse2 (and .cse23 .cse20 .cse21 .cse12 .cse24 .cse6 .cse7) .cse13) (or (and .cse16 .cse12) .cse0 .cse1 .cse11 .cse2 .cse3 .cse18) (or .cse8 .cse15 .cse11 .cse12 .cse17) (or .cse8 .cse25 .cse10 .cse13 .cse26) (or .cse8 .cse16 .cse13 .cse18) (or .cse8 .cse22 .cse1 .cse10 .cse27 .cse13) (or .cse8 .cse22 .cse10 .cse14 .cse27 .cse13) (or .cse15 .cse11 .cse2 .cse3 .cse17 (and .cse4 .cse19 .cse12 .cse6 .cse7)) (or .cse8 .cse25 .cse11 .cse12 .cse13 .cse18) (or .cse15 .cse22 .cse10 .cse2 (and .cse20 .cse21 .cse19 .cse24 .cse6 .cse7) .cse17 .cse13) (or .cse16 .cse25 .cse10 .cse2 .cse13 .cse18) (or .cse25 .cse22 .cse10 .cse2 .cse24 .cse13) (or .cse16 .cse1 .cse10 .cse11 .cse2 .cse13 .cse18) (or .cse25 .cse10 .cse2 .cse26 .cse13)))) [2020-07-21 20:10:54,101 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,101 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,101 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,101 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 20:10:54,101 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 20:10:54,101 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 20:10:54,101 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 20:10:54,101 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,102 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,103 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,103 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,103 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,103 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,103 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 20:10:54,103 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 20:10:54,103 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 20:10:54,103 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 20:10:54,103 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 20:10:54,104 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 20:10:54,104 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 20:10:54,104 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 20:10:54,104 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 20:10:54,104 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 20:10:54,104 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 20:10:54,104 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:54,104 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:54,104 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 20:10:54,105 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:54,106 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 20:10:54,107 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:54,107 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 20:10:54,107 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:54,107 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:54,107 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 20:10:54,107 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 20:10:54,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:54,107 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 20:10:54,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:10:54,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:54,108 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a17~0)| 8)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (<= ~a25~0 0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 20:10:54,108 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse13 (<= 10 ~a28~0)) (.cse11 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= 11 ~a28~0)) (.cse12 (<= |old(~a28~0)| 10)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (<= ~a28~0 10)) (.cse14 (not (= 1 ~a11~0))) (.cse5 (<= ~a19~0 0)) (.cse1 (<= ~a25~0 0)) (.cse8 (<= ~a28~0 7)) (.cse9 (= 1 ~a19~0)) (.cse6 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (<= 8 ~a17~0)) (.cse10 (<= ~a28~0 9)) (.cse4 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse5 .cse8) (not (<= |old(~a28~0)| 7)) (and .cse9 .cse10 .cse2 .cse11 .cse3 .cse12) (and .cse6 .cse7 .cse0 .cse13 .cse14 .cse5) (and .cse9 .cse2 .cse11 .cse15 .cse3 .cse12) (not (<= |old(~a11~0)| 0)) (and .cse9 .cse6 .cse7 .cse10 .cse11 .cse14 .cse12) (and .cse0 .cse13 (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse9 .cse6 .cse7 .cse8) (and .cse9 .cse6 .cse7 .cse11 .cse14 .cse15 .cse12) (and .cse10 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a17~0)| 8)) (and .cse6 .cse7 .cse0 .cse1 .cse14 .cse5) (and .cse9 .cse6 (<= ~a11~0 0) .cse1 .cse8) (and .cse9 .cse6 .cse7 .cse10 .cse4))) [2020-07-21 20:10:54,108 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:54,108 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:54,108 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse13 (<= 10 ~a28~0)) (.cse11 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= 11 ~a28~0)) (.cse12 (<= |old(~a28~0)| 10)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (<= ~a28~0 10)) (.cse14 (not (= 1 ~a11~0))) (.cse5 (<= ~a19~0 0)) (.cse1 (<= ~a25~0 0)) (.cse8 (<= ~a28~0 7)) (.cse9 (= 1 ~a19~0)) (.cse6 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (<= 8 ~a17~0)) (.cse10 (<= ~a28~0 9)) (.cse4 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse5 .cse8) (not (<= |old(~a28~0)| 7)) (and .cse9 .cse10 .cse2 .cse11 .cse3 .cse12) (and .cse6 .cse7 .cse0 .cse13 .cse14 .cse5) (and .cse9 .cse2 .cse11 .cse15 .cse3 .cse12) (not (<= |old(~a11~0)| 0)) (and .cse9 .cse6 .cse7 .cse10 .cse11 .cse14 .cse12) (and .cse0 .cse13 (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse9 .cse6 .cse7 .cse8) (and .cse9 .cse6 .cse7 .cse11 .cse14 .cse15 .cse12) (and .cse10 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a17~0)| 8)) (and .cse6 .cse7 .cse0 .cse1 .cse14 .cse5) (and .cse9 .cse6 (<= ~a11~0 0) .cse1 .cse8) (and .cse9 .cse6 .cse7 .cse10 .cse4))) [2020-07-21 20:10:54,109 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 20:10:54,109 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 20:10:54,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:10:54 BoogieIcfgContainer [2020-07-21 20:10:54,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:10:54,167 INFO L168 Benchmark]: Toolchain (without parser) took 25797.28 ms. Allocated memory was 146.3 MB in the beginning and 628.1 MB in the end (delta: 481.8 MB). Free memory was 102.1 MB in the beginning and 540.2 MB in the end (delta: -438.2 MB). Peak memory consumption was 455.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:54,167 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 20:10:54,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.75 ms. Allocated memory was 146.3 MB in the beginning and 207.1 MB in the end (delta: 60.8 MB). Free memory was 101.6 MB in the beginning and 171.7 MB in the end (delta: -70.0 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:54,169 INFO L168 Benchmark]: Boogie Preprocessor took 162.22 ms. Allocated memory is still 207.1 MB. Free memory was 171.7 MB in the beginning and 166.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:54,171 INFO L168 Benchmark]: RCFGBuilder took 1219.95 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 166.8 MB in the beginning and 178.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:54,172 INFO L168 Benchmark]: TraceAbstraction took 23634.99 ms. Allocated memory was 237.5 MB in the beginning and 628.1 MB in the end (delta: 390.6 MB). Free memory was 177.2 MB in the beginning and 540.2 MB in the end (delta: -363.0 MB). Peak memory consumption was 439.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:54,178 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 772.75 ms. Allocated memory was 146.3 MB in the beginning and 207.1 MB in the end (delta: 60.8 MB). Free memory was 101.6 MB in the beginning and 171.7 MB in the end (delta: -70.0 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.22 ms. Allocated memory is still 207.1 MB. Free memory was 171.7 MB in the beginning and 166.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1219.95 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 166.8 MB in the beginning and 178.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23634.99 ms. Allocated memory was 237.5 MB in the beginning and 628.1 MB in the end (delta: 390.6 MB). Free memory was 177.2 MB in the beginning and 540.2 MB in the end (delta: -363.0 MB). Peak memory consumption was 439.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 502]: 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)) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || (((a17 <= \old(a17) && 8 <= a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (((((1 == a19 && a28 <= 9) && a17 <= 7) && a19 <= \old(a19)) && 7 < \old(a17)) && \old(a28) <= 10)) || (((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && 10 <= a28) && !(1 == a11)) && a19 <= 0)) || (((((1 == a19 && a17 <= 7) && a19 <= \old(a19)) && 11 <= a28) && 7 < \old(a17)) && \old(a28) <= 10)) || !(\old(a11) <= 0)) || ((((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && a19 <= \old(a19)) && !(1 == a11)) && \old(a28) <= 10)) || ((a28 <= 10 && 10 <= a28) && a19 == \old(a19))) || !(\old(a25) <= 0)) || (((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 7)) || ((((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a19 <= \old(a19)) && !(1 == a11)) && 11 <= a28) && \old(a28) <= 10)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a17) <= 8)) || (((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && a25 <= 0) && !(1 == a11)) && a19 <= 0)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a25 <= 0) && a28 <= 7)) || ((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && 9 <= a28) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.5s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1175 SDtfs, 4811 SDslu, 588 SDs, 0 SdLazy, 8336 SolverSat, 1334 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3700 GetRequests, 3638 SyntacticMatches, 9 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4979occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 2173 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 229 PreInvPairs, 299 NumberOfFragments, 1227 HoareAnnotationTreeSize, 229 FomulaSimplifications, 4846 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7987 FormulaSimplificationTreeSizeReductionInter, 4.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2398 NumberOfCodeBlocks, 2398 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3663 ConstructedInterpolants, 0 QuantifiedInterpolants, 1074481 SizeOfPredicates, 17 NumberOfNonLiveVariables, 6023 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 2266/2365 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...