/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:32:04,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:32:04,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:32:04,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:32:04,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:32:04,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:32:04,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:32:04,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:32:04,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:32:04,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:32:04,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:32:04,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:32:04,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:32:04,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:32:04,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:32:04,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:32:04,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:32:04,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:32:04,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:32:04,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:32:04,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:32:04,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:32:04,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:32:04,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:32:04,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:32:04,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:32:04,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:32:04,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:32:04,436 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 16:32:04,450 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:32:04,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:32:04,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:32:04,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:32:04,452 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:32:04,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:32:04,452 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:32:04,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:32:04,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:32:04,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:32:04,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:32:04,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:32:04,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:32:04,454 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:32:04,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:32:04,454 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:32:04,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:32:04,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:32:04,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:32:04,455 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:32:04,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:32:04,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:32:04,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:32:04,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:32:04,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:32:04,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:32:04,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:04,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:32:04,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:32:04,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 16:32:04,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:32:04,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:32:04,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:32:04,766 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:32:04,766 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:32:04,767 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-07-21 16:32:04,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecde52eab/bcb9d3cb59c94b7cbe70fe93c2089ee5/FLAGf99566141 [2020-07-21 16:32:05,393 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:32:05,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-07-21 16:32:05,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecde52eab/bcb9d3cb59c94b7cbe70fe93c2089ee5/FLAGf99566141 [2020-07-21 16:32:05,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecde52eab/bcb9d3cb59c94b7cbe70fe93c2089ee5 [2020-07-21 16:32:05,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:32:05,650 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:32:05,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:32:05,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:32:05,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:32:05,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:32:05" (1/1) ... [2020-07-21 16:32:05,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9bb858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:05, skipping insertion in model container [2020-07-21 16:32:05,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:32:05" (1/1) ... [2020-07-21 16:32:05,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:32:05,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:32:06,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:32:06,133 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:32:06,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:32:06,388 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:32:06,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06 WrapperNode [2020-07-21 16:32:06,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:32:06,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:32:06,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:32:06,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:32:06,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06" (1/1) ... [2020-07-21 16:32:06,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06" (1/1) ... [2020-07-21 16:32:06,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06" (1/1) ... [2020-07-21 16:32:06,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06" (1/1) ... [2020-07-21 16:32:06,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06" (1/1) ... [2020-07-21 16:32:06,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06" (1/1) ... [2020-07-21 16:32:06,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06" (1/1) ... [2020-07-21 16:32:06,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:32:06,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:32:06,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:32:06,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:32:06,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06" (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 16:32:06,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:32:06,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:32:06,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:32:06,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:32:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:32:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:32:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:32:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:32:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:32:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:32:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:32:07,638 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:32:07,639 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:32:07,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:32:07 BoogieIcfgContainer [2020-07-21 16:32:07,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:32:07,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:32:07,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:32:07,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:32:07,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:32:05" (1/3) ... [2020-07-21 16:32:07,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca5a040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:32:07, skipping insertion in model container [2020-07-21 16:32:07,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:32:06" (2/3) ... [2020-07-21 16:32:07,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca5a040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:32:07, skipping insertion in model container [2020-07-21 16:32:07,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:32:07" (3/3) ... [2020-07-21 16:32:07,659 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label19.c [2020-07-21 16:32:07,670 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:32:07,684 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:32:07,697 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:32:07,727 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:32:07,727 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:32:07,727 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:32:07,728 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:32:07,728 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:32:07,728 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:32:07,728 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:32:07,728 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:32:07,745 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 16:32:07,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-21 16:32:07,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:32:07,756 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] [2020-07-21 16:32:07,756 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:32:07,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:32:07,761 INFO L82 PathProgramCache]: Analyzing trace with hash -940773154, now seen corresponding path program 1 times [2020-07-21 16:32:07,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:32:07,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163012187] [2020-07-21 16:32:07,768 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 16:32:07,959 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:32:07,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:32:07,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:32:07,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:32:08,057 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 16:32:08,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:32:08,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163012187] [2020-07-21 16:32:08,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:32:08,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:32:08,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316825536] [2020-07-21 16:32:08,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:32:08,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:32:08,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:32:08,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:32:08,083 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 16:32:08,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:32:08,923 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 16:32:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:32:08,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-07-21 16:32:08,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:32:08,941 INFO L225 Difference]: With dead ends: 572 [2020-07-21 16:32:08,941 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 16:32:08,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 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 16:32:08,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 16:32:09,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 16:32:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 16:32:09,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 16:32:09,015 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 92 [2020-07-21 16:32:09,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:32:09,016 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 16:32:09,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:32:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 16:32:09,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-21 16:32:09,021 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:32:09,022 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 16:32:09,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:09,236 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:32:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:32:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash -999601675, now seen corresponding path program 1 times [2020-07-21 16:32:09,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:32:09,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609619189] [2020-07-21 16:32:09,239 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 16:32:09,358 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:32:09,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:32:09,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:32:09,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:32:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:32:09,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:32:09,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609619189] [2020-07-21 16:32:09,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:32:09,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:32:09,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432366960] [2020-07-21 16:32:09,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:32:09,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:32:09,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:32:09,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:32:09,427 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-21 16:32:09,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:32:09,958 INFO L93 Difference]: Finished difference Result 820 states and 1181 transitions. [2020-07-21 16:32:09,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:32:09,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-07-21 16:32:09,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:32:09,971 INFO L225 Difference]: With dead ends: 820 [2020-07-21 16:32:09,971 INFO L226 Difference]: Without dead ends: 548 [2020-07-21 16:32:09,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 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 16:32:09,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-21 16:32:10,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-21 16:32:10,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-21 16:32:10,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 734 transitions. [2020-07-21 16:32:10,008 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 734 transitions. Word has length 102 [2020-07-21 16:32:10,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:32:10,009 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 734 transitions. [2020-07-21 16:32:10,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:32:10,009 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 734 transitions. [2020-07-21 16:32:10,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-21 16:32:10,013 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:32:10,013 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 16:32:10,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:10,229 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:32:10,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:32:10,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1242400687, now seen corresponding path program 1 times [2020-07-21 16:32:10,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:32:10,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675588328] [2020-07-21 16:32:10,233 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 16:32:10,357 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:32:10,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:32:10,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:32:10,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:32:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:32:10,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:32:10,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675588328] [2020-07-21 16:32:10,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:32:10,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:32:10,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550518930] [2020-07-21 16:32:10,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:32:10,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:32:10,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:32:10,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:32:10,424 INFO L87 Difference]: Start difference. First operand 548 states and 734 transitions. Second operand 3 states. [2020-07-21 16:32:11,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:32:11,002 INFO L93 Difference]: Finished difference Result 1360 states and 1853 transitions. [2020-07-21 16:32:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:32:11,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-07-21 16:32:11,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:32:11,015 INFO L225 Difference]: With dead ends: 1360 [2020-07-21 16:32:11,016 INFO L226 Difference]: Without dead ends: 818 [2020-07-21 16:32:11,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 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 16:32:11,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-21 16:32:11,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-21 16:32:11,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-21 16:32:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1060 transitions. [2020-07-21 16:32:11,063 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1060 transitions. Word has length 107 [2020-07-21 16:32:11,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:32:11,064 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1060 transitions. [2020-07-21 16:32:11,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:32:11,064 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1060 transitions. [2020-07-21 16:32:11,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-21 16:32:11,070 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:32:11,070 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:32:11,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:11,284 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:32:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:32:11,285 INFO L82 PathProgramCache]: Analyzing trace with hash -2037525696, now seen corresponding path program 1 times [2020-07-21 16:32:11,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:32:11,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485550634] [2020-07-21 16:32:11,287 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 16:32:11,419 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:32:11,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:32:11,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:32:11,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:32:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:32:11,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:32:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:32:11,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485550634] [2020-07-21 16:32:11,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:32:11,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 16:32:11,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883574329] [2020-07-21 16:32:11,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 16:32:11,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:32:11,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 16:32:11,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 16:32:11,587 INFO L87 Difference]: Start difference. First operand 818 states and 1060 transitions. Second operand 8 states. [2020-07-21 16:32:13,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:32:13,569 INFO L93 Difference]: Finished difference Result 3084 states and 4287 transitions. [2020-07-21 16:32:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 16:32:13,570 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-07-21 16:32:13,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:32:13,586 INFO L225 Difference]: With dead ends: 3084 [2020-07-21 16:32:13,586 INFO L226 Difference]: Without dead ends: 2272 [2020-07-21 16:32:13,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 16:32:13,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-07-21 16:32:13,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2065. [2020-07-21 16:32:13,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-07-21 16:32:13,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2573 transitions. [2020-07-21 16:32:13,674 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2573 transitions. Word has length 118 [2020-07-21 16:32:13,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:32:13,674 INFO L479 AbstractCegarLoop]: Abstraction has 2065 states and 2573 transitions. [2020-07-21 16:32:13,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 16:32:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2573 transitions. [2020-07-21 16:32:13,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 16:32:13,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:32:13,684 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:13,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:13,898 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:32:13,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:32:13,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1595348466, now seen corresponding path program 1 times [2020-07-21 16:32:13,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:32:13,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830377814] [2020-07-21 16:32:13,901 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 16:32:14,041 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:32:14,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:32:14,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:32:14,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:32:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 16:32:14,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:32:14,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830377814] [2020-07-21 16:32:14,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:32:14,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:32:14,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998334335] [2020-07-21 16:32:14,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:32:14,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:32:14,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:32:14,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:32:14,099 INFO L87 Difference]: Start difference. First operand 2065 states and 2573 transitions. Second operand 3 states. [2020-07-21 16:32:14,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:32:14,666 INFO L93 Difference]: Finished difference Result 5617 states and 7128 transitions. [2020-07-21 16:32:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:32:14,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-21 16:32:14,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:32:14,697 INFO L225 Difference]: With dead ends: 5617 [2020-07-21 16:32:14,697 INFO L226 Difference]: Without dead ends: 3562 [2020-07-21 16:32:14,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 16:32:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2020-07-21 16:32:14,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 2752. [2020-07-21 16:32:14,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2020-07-21 16:32:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3489 transitions. [2020-07-21 16:32:14,807 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3489 transitions. Word has length 127 [2020-07-21 16:32:14,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:32:14,808 INFO L479 AbstractCegarLoop]: Abstraction has 2752 states and 3489 transitions. [2020-07-21 16:32:14,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:32:14,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3489 transitions. [2020-07-21 16:32:14,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 16:32:14,823 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:32:14,824 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:32:15,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:15,038 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:32:15,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:32:15,039 INFO L82 PathProgramCache]: Analyzing trace with hash -542065553, now seen corresponding path program 1 times [2020-07-21 16:32:15,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:32:15,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679761218] [2020-07-21 16:32:15,041 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 16:32:15,215 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:32:15,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:32:15,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:32:15,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:32:15,257 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 16:32:15,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:32:15,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679761218] [2020-07-21 16:32:15,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:32:15,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:32:15,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129786495] [2020-07-21 16:32:15,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:32:15,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:32:15,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:32:15,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:32:15,263 INFO L87 Difference]: Start difference. First operand 2752 states and 3489 transitions. Second operand 3 states. [2020-07-21 16:32:15,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:32:15,827 INFO L93 Difference]: Finished difference Result 6578 states and 8490 transitions. [2020-07-21 16:32:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:32:15,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-21 16:32:15,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:32:15,850 INFO L225 Difference]: With dead ends: 6578 [2020-07-21 16:32:15,851 INFO L226 Difference]: Without dead ends: 3836 [2020-07-21 16:32:15,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 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 16:32:15,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2020-07-21 16:32:15,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3159. [2020-07-21 16:32:15,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3159 states. [2020-07-21 16:32:15,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4093 transitions. [2020-07-21 16:32:15,969 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4093 transitions. Word has length 143 [2020-07-21 16:32:15,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:32:15,969 INFO L479 AbstractCegarLoop]: Abstraction has 3159 states and 4093 transitions. [2020-07-21 16:32:15,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:32:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4093 transitions. [2020-07-21 16:32:15,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-21 16:32:15,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:32:15,980 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-07-21 16:32:16,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:16,194 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:32:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:32:16,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1459911568, now seen corresponding path program 1 times [2020-07-21 16:32:16,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:32:16,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083567360] [2020-07-21 16:32:16,195 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 16:32:16,319 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:32:16,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:32:16,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:32:16,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:32:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-21 16:32:16,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:32:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 107 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 16:32:16,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083567360] [2020-07-21 16:32:16,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:32:16,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:32:16,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585969406] [2020-07-21 16:32:16,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:32:16,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:32:16,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:32:16,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:32:16,482 INFO L87 Difference]: Start difference. First operand 3159 states and 4093 transitions. Second operand 6 states. [2020-07-21 16:32:17,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:32:17,254 INFO L93 Difference]: Finished difference Result 6890 states and 8926 transitions. [2020-07-21 16:32:17,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:32:17,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-07-21 16:32:17,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:32:17,274 INFO L225 Difference]: With dead ends: 6890 [2020-07-21 16:32:17,274 INFO L226 Difference]: Without dead ends: 3741 [2020-07-21 16:32:17,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 338 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 16:32:17,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2020-07-21 16:32:17,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 3052. [2020-07-21 16:32:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3052 states. [2020-07-21 16:32:17,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 3857 transitions. [2020-07-21 16:32:17,417 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 3857 transitions. Word has length 171 [2020-07-21 16:32:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:32:17,418 INFO L479 AbstractCegarLoop]: Abstraction has 3052 states and 3857 transitions. [2020-07-21 16:32:17,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:32:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 3857 transitions. [2020-07-21 16:32:17,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 16:32:17,427 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:32:17,428 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:32:17,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:17,641 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:32:17,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:32:17,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1887261731, now seen corresponding path program 1 times [2020-07-21 16:32:17,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:32:17,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920313420] [2020-07-21 16:32:17,643 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 16:32:17,759 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:32:17,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:32:17,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:32:17,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:32:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 16:32:17,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:32:17,906 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 16:32:17,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920313420] [2020-07-21 16:32:17,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:32:17,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:32:17,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6844830] [2020-07-21 16:32:17,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:32:17,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:32:17,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:32:17,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:32:17,909 INFO L87 Difference]: Start difference. First operand 3052 states and 3857 transitions. Second operand 6 states. [2020-07-21 16:32:18,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:32:18,983 INFO L93 Difference]: Finished difference Result 8800 states and 12119 transitions. [2020-07-21 16:32:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:32:18,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 179 [2020-07-21 16:32:18,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:32:19,019 INFO L225 Difference]: With dead ends: 8800 [2020-07-21 16:32:19,020 INFO L226 Difference]: Without dead ends: 5758 [2020-07-21 16:32:19,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 354 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:32:19,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2020-07-21 16:32:19,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5002. [2020-07-21 16:32:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5002 states. [2020-07-21 16:32:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 6373 transitions. [2020-07-21 16:32:19,190 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 6373 transitions. Word has length 179 [2020-07-21 16:32:19,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:32:19,190 INFO L479 AbstractCegarLoop]: Abstraction has 5002 states and 6373 transitions. [2020-07-21 16:32:19,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:32:19,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 6373 transitions. [2020-07-21 16:32:19,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 16:32:19,208 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:32:19,209 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 16:32:19,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:19,424 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:32:19,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:32:19,424 INFO L82 PathProgramCache]: Analyzing trace with hash 310159644, now seen corresponding path program 1 times [2020-07-21 16:32:19,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:32:19,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480914896] [2020-07-21 16:32:19,425 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 16:32:19,544 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:32:19,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:32:19,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:32:19,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:32:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-07-21 16:32:19,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:32:19,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480914896] [2020-07-21 16:32:19,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:32:19,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:32:19,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795887136] [2020-07-21 16:32:19,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:32:19,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:32:19,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:32:19,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:32:19,589 INFO L87 Difference]: Start difference. First operand 5002 states and 6373 transitions. Second operand 3 states. [2020-07-21 16:32:20,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:32:20,094 INFO L93 Difference]: Finished difference Result 8640 states and 11005 transitions. [2020-07-21 16:32:20,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:32:20,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-07-21 16:32:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:32:20,095 INFO L225 Difference]: With dead ends: 8640 [2020-07-21 16:32:20,095 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:32:20,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 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 16:32:20,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:32:20,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:32:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:32:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:32:20,115 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2020-07-21 16:32:20,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:32:20,115 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:32:20,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:32:20,115 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:32:20,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:32:20,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:32:20,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:32:20,867 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-21 16:32:21,043 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-21 16:32:22,248 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2020-07-21 16:32:22,514 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-21 16:32:22,763 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-21 16:32:22,768 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:32:22,768 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a20~0 |old(~a20~0)|) (<= |old(~a16~0)| ~a16~0)) [2020-07-21 16:32:22,768 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:32:22,768 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 16:32:22,769 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 16:32:22,769 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,769 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,769 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,769 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,770 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,770 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,770 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 16:32:22,770 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 16:32:22,770 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 16:32:22,771 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 16:32:22,771 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 16:32:22,771 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 16:32:22,771 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 16:32:22,771 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 16:32:22,771 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 16:32:22,771 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 16:32:22,772 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,772 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,772 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,772 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,772 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,772 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,772 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 16:32:22,772 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 16:32:22,773 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 16:32:22,773 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 16:32:22,773 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 16:32:22,773 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 16:32:22,773 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 16:32:22,773 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 16:32:22,773 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 16:32:22,773 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 16:32:22,773 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 16:32:22,774 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 434) no Hoare annotation was computed. [2020-07-21 16:32:22,774 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 16:32:22,774 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 16:32:22,774 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 16:32:22,774 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 16:32:22,774 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,774 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,774 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,775 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,775 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,775 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 16:32:22,775 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 16:32:22,775 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 16:32:22,775 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 16:32:22,775 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 16:32:22,775 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 16:32:22,775 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 16:32:22,776 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 16:32:22,776 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 16:32:22,776 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,776 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,776 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,776 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,776 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,776 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 16:32:22,777 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 16:32:22,777 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 16:32:22,777 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 16:32:22,777 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 16:32:22,777 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 16:32:22,777 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 16:32:22,777 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 16:32:22,777 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 16:32:22,777 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 16:32:22,778 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 16:32:22,778 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 16:32:22,778 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 16:32:22,778 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,778 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,778 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,778 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,778 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,779 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 16:32:22,779 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 16:32:22,779 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 16:32:22,779 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 16:32:22,779 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 16:32:22,779 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 16:32:22,779 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 16:32:22,779 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 16:32:22,779 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 16:32:22,780 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,780 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,780 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,780 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,780 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,780 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,780 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 16:32:22,780 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,780 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 16:32:22,781 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 16:32:22,781 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 16:32:22,781 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 16:32:22,781 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 16:32:22,781 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 16:32:22,781 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 16:32:22,781 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 16:32:22,781 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 16:32:22,781 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 16:32:22,782 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 16:32:22,782 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 16:32:22,782 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 16:32:22,782 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,782 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,782 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,782 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,782 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,783 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 16:32:22,783 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 16:32:22,783 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 16:32:22,783 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 16:32:22,783 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 16:32:22,783 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 16:32:22,783 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 16:32:22,784 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 16:32:22,784 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,784 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,784 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,784 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,784 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,784 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 16:32:22,784 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 16:32:22,784 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 16:32:22,785 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 16:32:22,785 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 16:32:22,785 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 16:32:22,785 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 16:32:22,785 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 16:32:22,785 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 16:32:22,785 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 16:32:22,786 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (<= ~a21~0 0)) (.cse4 (not (<= |old(~a21~0)| 0))) (.cse9 (<= ~a7~0 0)) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse1 (<= ~a20~0 |old(~a20~0)|)) (.cse3 (<= ~a16~0 5)) (.cse8 (<= |old(~a16~0)| ~a16~0)) (.cse0 (<= ~a8~0 |old(~a8~0)|)) (.cse10 (<= ~a8~0 13)) (.cse12 (<= ~a17~0 0)) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse6 (not (<= |old(~a8~0)| 13))) (.cse13 (not (<= |old(~a17~0)| 0))) (.cse11 (not (<= 15 |old(~a8~0)|))) (.cse14 (not (<= |old(~a16~0)| 4))) (.cse15 (<= ~a16~0 4))) (and (or (and .cse0 .cse1 .cse2 .cse3 (<= 5 ~a16~0)) .cse4 .cse5 .cse6 (not (<= 5 |old(~a16~0)|))) (or (and (or .cse7 .cse5) (or .cse7 .cse6)) (and .cse0 .cse1 .cse8 .cse9 .cse3) (and .cse0 .cse10 .cse1 .cse8 .cse9)) (or .cse11 .cse12 .cse13) (or .cse2 (and (or .cse4 .cse6 .cse13) (or .cse4 .cse6 .cse14))) (or .cse11 .cse5 .cse3) (or .cse11 .cse9 .cse7) (or .cse11 (and .cse0 .cse1 .cse8 (<= 15 ~a8~0))) (or (and .cse1 (or (and .cse0 .cse8 .cse12 .cse3) (and .cse8 (or (and .cse0 .cse10 .cse15) (and .cse0 .cse10 .cse12))))) (and (or .cse5 .cse13) (or .cse6 .cse14) (or .cse6 .cse13))) (or .cse11 .cse14 .cse15))) [2020-07-21 16:32:22,786 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 16:32:22,786 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,786 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,786 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,786 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,786 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 16:32:22,786 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,786 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,787 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 16:32:22,787 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 16:32:22,787 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 16:32:22,787 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 16:32:22,787 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 16:32:22,787 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 16:32:22,787 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 16:32:22,787 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 16:32:22,787 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 16:32:22,788 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 16:32:22,788 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 16:32:22,788 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 16:32:22,788 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,788 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,788 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,788 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,788 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,788 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 16:32:22,789 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,789 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 16:32:22,789 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 16:32:22,789 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 16:32:22,789 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 16:32:22,789 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 16:32:22,789 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 16:32:22,789 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 16:32:22,789 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 16:32:22,790 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:32:22,791 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) [2020-07-21 16:32:22,791 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:32:22,791 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:32:22,792 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (<= ~a20~0 |old(~a20~0)|) (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|))) [2020-07-21 16:32:22,792 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 16:32:22,792 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a17~0 0)) (.cse2 (<= ~a8~0 13)) (.cse3 (<= ~a7~0 0))) (or (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse2 (<= ~a16~0 4)) (and .cse2 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse3 .cse1) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse3))) [2020-07-21 16:32:22,792 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 16:32:22,792 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 16:32:22,792 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a17~0 0)) (.cse2 (<= ~a8~0 13)) (.cse3 (<= ~a7~0 0))) (or (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse2 (<= ~a16~0 4)) (and .cse2 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse3 .cse1) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse3))) [2020-07-21 16:32:22,793 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 16:32:22,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:32:22 BoogieIcfgContainer [2020-07-21 16:32:22,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:32:22,814 INFO L168 Benchmark]: Toolchain (without parser) took 17164.97 ms. Allocated memory was 143.7 MB in the beginning and 465.0 MB in the end (delta: 321.4 MB). Free memory was 102.3 MB in the beginning and 282.0 MB in the end (delta: -179.7 MB). Peak memory consumption was 347.2 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:22,814 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 16:32:22,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.63 ms. Allocated memory was 143.7 MB in the beginning and 206.6 MB in the end (delta: 62.9 MB). Free memory was 101.9 MB in the beginning and 172.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:22,816 INFO L168 Benchmark]: Boogie Preprocessor took 118.68 ms. Allocated memory is still 206.6 MB. Free memory was 172.9 MB in the beginning and 168.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:22,817 INFO L168 Benchmark]: RCFGBuilder took 1140.01 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 168.1 MB in the beginning and 178.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:22,817 INFO L168 Benchmark]: TraceAbstraction took 15161.88 ms. Allocated memory was 238.0 MB in the beginning and 465.0 MB in the end (delta: 227.0 MB). Free memory was 177.3 MB in the beginning and 282.0 MB in the end (delta: -104.7 MB). Peak memory consumption was 327.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:22,821 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 143.7 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.63 ms. Allocated memory was 143.7 MB in the beginning and 206.6 MB in the end (delta: 62.9 MB). Free memory was 101.9 MB in the beginning and 172.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.68 ms. Allocated memory is still 206.6 MB. Free memory was 172.9 MB in the beginning and 168.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1140.01 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 168.1 MB in the beginning and 178.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15161.88 ms. Allocated memory was 238.0 MB in the beginning and 465.0 MB in the end (delta: 227.0 MB). Free memory was 177.3 MB in the beginning and 282.0 MB in the end (delta: -104.7 MB). Peak memory consumption was 327.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 434]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((a17 <= 0 && a16 <= 5) || !(15 <= \old(a8))) || (a8 <= 13 && a16 <= 4)) || ((a8 <= 13 && a21 <= 0) && a16 <= 5)) || !(\old(a7) <= 0)) || 15 <= a8) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)) || (a8 <= 13 && a17 <= 0)) || !(5 <= \old(a16))) || (a8 <= 13 && a7 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.6s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 850 SDtfs, 1838 SDslu, 268 SDs, 0 SdLazy, 5776 SolverSat, 823 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1699 GetRequests, 1665 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5002occurred 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: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 3139 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 162 PreInvPairs, 236 NumberOfFragments, 445 HoareAnnotationTreeSize, 162 FomulaSimplifications, 11718 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3328 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1676 ConstructedInterpolants, 0 QuantifiedInterpolants, 481038 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3918 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 941/967 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...