/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 4 -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 [2020-07-20 17:21:31,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:21:31,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:21:31,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:21:31,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:21:31,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:21:31,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:21:31,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:21:31,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:21:31,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:21:31,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:21:31,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:21:31,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:21:31,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:21:31,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:21:31,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:21:31,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:21:31,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:21:31,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:21:31,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:21:31,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:21:31,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:21:31,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:21:31,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:21:31,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:21:31,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:21:31,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:21:31,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:21:31,473 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 [2020-07-20 17:21:31,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:21:31,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:21:31,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:21:31,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:21:31,505 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:21:31,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:21:31,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:21:31,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:21:31,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:21:31,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:21:31,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:21:31,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:21:31,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:21:31,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:21:31,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:21:31,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:21:31,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:21:31,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:21:31,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:21:31,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:21:31,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:21:31,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:21:31,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:21:31,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:21:31,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:21:31,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:21:31,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:31,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:21:31,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:21:31,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> 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 -> 4 [2020-07-20 17:21:31,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:21:31,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:21:31,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:21:31,829 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:21:31,829 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:21:31,830 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-07-20 17:21:31,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5d66dd01/b57af5c85e0b40fab194448b8c894bfc/FLAG21c482634 [2020-07-20 17:21:32,528 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:21:32,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-07-20 17:21:32,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5d66dd01/b57af5c85e0b40fab194448b8c894bfc/FLAG21c482634 [2020-07-20 17:21:32,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5d66dd01/b57af5c85e0b40fab194448b8c894bfc [2020-07-20 17:21:32,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:21:32,769 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:21:32,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:21:32,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:21:32,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:21:32,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:21:32" (1/1) ... [2020-07-20 17:21:32,780 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 20.07 05:21:32, skipping insertion in model container [2020-07-20 17:21:32,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:21:32" (1/1) ... [2020-07-20 17:21:32,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:21:32,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:21:33,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:21:33,299 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:21:33,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:21:33,575 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:21:33,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33 WrapperNode [2020-07-20 17:21:33,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:21:33,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:21:33,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:21:33,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:21:33,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33" (1/1) ... [2020-07-20 17:21:33,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33" (1/1) ... [2020-07-20 17:21:33,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33" (1/1) ... [2020-07-20 17:21:33,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33" (1/1) ... [2020-07-20 17:21:33,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33" (1/1) ... [2020-07-20 17:21:33,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33" (1/1) ... [2020-07-20 17:21:33,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33" (1/1) ... [2020-07-20 17:21:33,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:21:33,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:21:33,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:21:33,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:21:33,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33" (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 [2020-07-20 17:21:33,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:21:33,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:21:33,757 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:21:33,758 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:21:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:21:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:21:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:21:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:21:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:21:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:21:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:21:34,966 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:21:34,966 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:21:34,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:21:34 BoogieIcfgContainer [2020-07-20 17:21:34,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:21:34,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:21:34,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:21:34,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:21:34,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:21:32" (1/3) ... [2020-07-20 17:21:34,981 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 20.07 05:21:34, skipping insertion in model container [2020-07-20 17:21:34,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:33" (2/3) ... [2020-07-20 17:21:34,982 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 20.07 05:21:34, skipping insertion in model container [2020-07-20 17:21:34,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:21:34" (3/3) ... [2020-07-20 17:21:34,984 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label19.c [2020-07-20 17:21:34,995 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:21:35,003 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:21:35,018 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:21:35,045 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:21:35,046 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:21:35,046 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:21:35,046 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:21:35,047 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:21:35,047 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:21:35,047 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:21:35,047 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:21:35,070 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 17:21:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-20 17:21:35,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:35,081 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] [2020-07-20 17:21:35,082 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:35,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:35,087 INFO L82 PathProgramCache]: Analyzing trace with hash -940773154, now seen corresponding path program 1 times [2020-07-20 17:21:35,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:35,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163012187] [2020-07-20 17:21:35,095 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:35,335 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:35,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:35,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:21:35,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:35,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:35,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163012187] [2020-07-20 17:21:35,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:35,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:35,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316825536] [2020-07-20 17:21:35,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:35,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:35,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:35,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:35,505 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 17:21:36,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:36,391 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-20 17:21:36,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:36,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-07-20 17:21:36,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:36,409 INFO L225 Difference]: With dead ends: 572 [2020-07-20 17:21:36,409 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 17:21:36,416 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 [2020-07-20 17:21:36,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 17:21:36,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 17:21:36,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 17:21:36,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 17:21:36,488 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 92 [2020-07-20 17:21:36,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:36,489 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 17:21:36,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 17:21:36,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-20 17:21:36,496 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:36,496 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] [2020-07-20 17:21:36,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:36,710 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:36,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:36,711 INFO L82 PathProgramCache]: Analyzing trace with hash -999601675, now seen corresponding path program 1 times [2020-07-20 17:21:36,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:36,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609619189] [2020-07-20 17:21:36,713 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:36,823 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:36,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:36,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:36,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:36,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:36,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609619189] [2020-07-20 17:21:36,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:36,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:36,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432366960] [2020-07-20 17:21:36,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:36,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:36,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:36,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:36,872 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-20 17:21:37,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:37,508 INFO L93 Difference]: Finished difference Result 820 states and 1181 transitions. [2020-07-20 17:21:37,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:37,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-07-20 17:21:37,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:37,520 INFO L225 Difference]: With dead ends: 820 [2020-07-20 17:21:37,520 INFO L226 Difference]: Without dead ends: 548 [2020-07-20 17:21:37,522 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 [2020-07-20 17:21:37,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-20 17:21:37,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-20 17:21:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-20 17:21:37,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 734 transitions. [2020-07-20 17:21:37,570 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 734 transitions. Word has length 102 [2020-07-20 17:21:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:37,574 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 734 transitions. [2020-07-20 17:21:37,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 734 transitions. [2020-07-20 17:21:37,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-20 17:21:37,585 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:37,585 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] [2020-07-20 17:21:37,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:37,803 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:37,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:37,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1242400687, now seen corresponding path program 1 times [2020-07-20 17:21:37,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:37,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675588328] [2020-07-20 17:21:37,806 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:37,944 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:37,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:37,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:37,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:38,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:38,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675588328] [2020-07-20 17:21:38,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:38,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:38,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550518930] [2020-07-20 17:21:38,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:38,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:38,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:38,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:38,036 INFO L87 Difference]: Start difference. First operand 548 states and 734 transitions. Second operand 3 states. [2020-07-20 17:21:38,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:38,659 INFO L93 Difference]: Finished difference Result 1360 states and 1853 transitions. [2020-07-20 17:21:38,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:38,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-07-20 17:21:38,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:38,666 INFO L225 Difference]: With dead ends: 1360 [2020-07-20 17:21:38,666 INFO L226 Difference]: Without dead ends: 818 [2020-07-20 17:21:38,668 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 [2020-07-20 17:21:38,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-20 17:21:38,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-20 17:21:38,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-20 17:21:38,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1060 transitions. [2020-07-20 17:21:38,712 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1060 transitions. Word has length 107 [2020-07-20 17:21:38,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:38,713 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1060 transitions. [2020-07-20 17:21:38,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:38,713 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1060 transitions. [2020-07-20 17:21:38,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-20 17:21:38,722 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:38,722 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] [2020-07-20 17:21:38,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:38,924 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:38,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:38,924 INFO L82 PathProgramCache]: Analyzing trace with hash -2037525696, now seen corresponding path program 1 times [2020-07-20 17:21:38,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:38,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485550634] [2020-07-20 17:21:38,926 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:39,026 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:39,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:39,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:39,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:39,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:21:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:39,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485550634] [2020-07-20 17:21:39,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:21:39,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 17:21:39,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883574329] [2020-07-20 17:21:39,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 17:21:39,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:39,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 17:21:39,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:21:39,184 INFO L87 Difference]: Start difference. First operand 818 states and 1060 transitions. Second operand 8 states. [2020-07-20 17:21:41,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:41,504 INFO L93 Difference]: Finished difference Result 3084 states and 4287 transitions. [2020-07-20 17:21:41,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 17:21:41,505 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-07-20 17:21:41,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:41,531 INFO L225 Difference]: With dead ends: 3084 [2020-07-20 17:21:41,532 INFO L226 Difference]: Without dead ends: 2272 [2020-07-20 17:21:41,535 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 [2020-07-20 17:21:41,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-07-20 17:21:41,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2065. [2020-07-20 17:21:41,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-07-20 17:21:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2573 transitions. [2020-07-20 17:21:41,653 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2573 transitions. Word has length 118 [2020-07-20 17:21:41,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:41,653 INFO L479 AbstractCegarLoop]: Abstraction has 2065 states and 2573 transitions. [2020-07-20 17:21:41,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 17:21:41,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2573 transitions. [2020-07-20 17:21:41,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 17:21:41,665 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:41,666 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] [2020-07-20 17:21:41,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:41,879 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:41,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:41,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1595348466, now seen corresponding path program 1 times [2020-07-20 17:21:41,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:41,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830377814] [2020-07-20 17:21:41,881 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:41,988 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:41,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:41,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:41,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 17:21:42,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:42,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830377814] [2020-07-20 17:21:42,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:42,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:42,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998334335] [2020-07-20 17:21:42,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:42,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:42,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:42,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:42,039 INFO L87 Difference]: Start difference. First operand 2065 states and 2573 transitions. Second operand 3 states. [2020-07-20 17:21:42,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:42,704 INFO L93 Difference]: Finished difference Result 5617 states and 7128 transitions. [2020-07-20 17:21:42,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:42,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-20 17:21:42,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:42,730 INFO L225 Difference]: With dead ends: 5617 [2020-07-20 17:21:42,730 INFO L226 Difference]: Without dead ends: 3562 [2020-07-20 17:21:42,740 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 [2020-07-20 17:21:42,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2020-07-20 17:21:42,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 2752. [2020-07-20 17:21:42,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2020-07-20 17:21:42,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3489 transitions. [2020-07-20 17:21:42,856 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3489 transitions. Word has length 127 [2020-07-20 17:21:42,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:42,857 INFO L479 AbstractCegarLoop]: Abstraction has 2752 states and 3489 transitions. [2020-07-20 17:21:42,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:42,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3489 transitions. [2020-07-20 17:21:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 17:21:42,869 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:42,870 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] [2020-07-20 17:21:43,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:43,085 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:43,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:43,085 INFO L82 PathProgramCache]: Analyzing trace with hash -542065553, now seen corresponding path program 1 times [2020-07-20 17:21:43,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:43,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679761218] [2020-07-20 17:21:43,086 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:43,198 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:43,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:43,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:43,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 17:21:43,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:43,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679761218] [2020-07-20 17:21:43,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:43,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:43,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129786495] [2020-07-20 17:21:43,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:43,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:43,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:43,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:43,230 INFO L87 Difference]: Start difference. First operand 2752 states and 3489 transitions. Second operand 3 states. [2020-07-20 17:21:43,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:43,903 INFO L93 Difference]: Finished difference Result 6578 states and 8490 transitions. [2020-07-20 17:21:43,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:43,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-20 17:21:43,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:43,925 INFO L225 Difference]: With dead ends: 6578 [2020-07-20 17:21:43,925 INFO L226 Difference]: Without dead ends: 3836 [2020-07-20 17:21:43,936 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 [2020-07-20 17:21:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2020-07-20 17:21:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3159. [2020-07-20 17:21:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3159 states. [2020-07-20 17:21:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4093 transitions. [2020-07-20 17:21:44,048 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4093 transitions. Word has length 143 [2020-07-20 17:21:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:44,049 INFO L479 AbstractCegarLoop]: Abstraction has 3159 states and 4093 transitions. [2020-07-20 17:21:44,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4093 transitions. [2020-07-20 17:21:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-20 17:21:44,062 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:44,062 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] [2020-07-20 17:21:44,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:44,276 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:44,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:44,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1459911568, now seen corresponding path program 1 times [2020-07-20 17:21:44,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:44,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083567360] [2020-07-20 17:21:44,278 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:44,402 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:44,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:44,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:44,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:44,451 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-20 17:21:44,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:21:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 107 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-20 17:21:44,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083567360] [2020-07-20 17:21:44,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:21:44,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:21:44,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585969406] [2020-07-20 17:21:44,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:21:44,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:44,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:21:44,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:21:44,552 INFO L87 Difference]: Start difference. First operand 3159 states and 4093 transitions. Second operand 6 states. [2020-07-20 17:21:45,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:45,439 INFO L93 Difference]: Finished difference Result 6890 states and 8926 transitions. [2020-07-20 17:21:45,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:21:45,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-07-20 17:21:45,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:45,459 INFO L225 Difference]: With dead ends: 6890 [2020-07-20 17:21:45,459 INFO L226 Difference]: Without dead ends: 3741 [2020-07-20 17:21:45,470 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 [2020-07-20 17:21:45,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2020-07-20 17:21:45,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 3052. [2020-07-20 17:21:45,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3052 states. [2020-07-20 17:21:45,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 3857 transitions. [2020-07-20 17:21:45,562 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 3857 transitions. Word has length 171 [2020-07-20 17:21:45,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:45,563 INFO L479 AbstractCegarLoop]: Abstraction has 3052 states and 3857 transitions. [2020-07-20 17:21:45,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:21:45,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 3857 transitions. [2020-07-20 17:21:45,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-20 17:21:45,572 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:45,573 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] [2020-07-20 17:21:45,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:45,786 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:45,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:45,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1887261731, now seen corresponding path program 1 times [2020-07-20 17:21:45,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:45,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136284845] [2020-07-20 17:21:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:45,930 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:45,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:45,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:45,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:45,989 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 17:21:45,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:21:46,108 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 17:21:46,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136284845] [2020-07-20 17:21:46,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:21:46,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:21:46,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6844830] [2020-07-20 17:21:46,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:21:46,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:46,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:21:46,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:21:46,110 INFO L87 Difference]: Start difference. First operand 3052 states and 3857 transitions. Second operand 6 states. [2020-07-20 17:21:47,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:47,217 INFO L93 Difference]: Finished difference Result 8800 states and 12119 transitions. [2020-07-20 17:21:47,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:21:47,218 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 179 [2020-07-20 17:21:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:47,257 INFO L225 Difference]: With dead ends: 8800 [2020-07-20 17:21:47,258 INFO L226 Difference]: Without dead ends: 5758 [2020-07-20 17:21:47,273 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 [2020-07-20 17:21:47,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2020-07-20 17:21:47,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5002. [2020-07-20 17:21:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5002 states. [2020-07-20 17:21:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 6373 transitions. [2020-07-20 17:21:47,444 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 6373 transitions. Word has length 179 [2020-07-20 17:21:47,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:47,444 INFO L479 AbstractCegarLoop]: Abstraction has 5002 states and 6373 transitions. [2020-07-20 17:21:47,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:21:47,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 6373 transitions. [2020-07-20 17:21:47,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-20 17:21:47,463 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:47,463 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] [2020-07-20 17:21:47,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:47,677 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:47,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:47,678 INFO L82 PathProgramCache]: Analyzing trace with hash 310159644, now seen corresponding path program 1 times [2020-07-20 17:21:47,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:47,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480914896] [2020-07-20 17:21:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:47,899 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:47,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:47,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:47,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-07-20 17:21:47,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:47,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480914896] [2020-07-20 17:21:47,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:47,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:47,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795887136] [2020-07-20 17:21:47,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:47,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:47,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:47,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:47,954 INFO L87 Difference]: Start difference. First operand 5002 states and 6373 transitions. Second operand 3 states. [2020-07-20 17:21:48,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:48,514 INFO L93 Difference]: Finished difference Result 8640 states and 11005 transitions. [2020-07-20 17:21:48,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:48,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-07-20 17:21:48,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:48,515 INFO L225 Difference]: With dead ends: 8640 [2020-07-20 17:21:48,515 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:21:48,533 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 [2020-07-20 17:21:48,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:21:48,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:21:48,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:21:48,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:21:48,534 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2020-07-20 17:21:48,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:48,535 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:21:48,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:48,535 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:21:48,535 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:21:48,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:48,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:21:49,278 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-20 17:21:49,448 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-20 17:21:50,657 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2020-07-20 17:21:50,934 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-20 17:21:51,184 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-20 17:21:51,188 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:21:51,188 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)) [2020-07-20 17:21:51,189 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:21:51,189 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 17:21:51,189 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 17:21:51,189 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,189 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,190 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,190 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,190 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,190 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,190 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 17:21:51,190 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 17:21:51,190 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 17:21:51,190 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 17:21:51,190 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 17:21:51,191 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 17:21:51,191 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 17:21:51,191 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 17:21:51,191 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 17:21:51,191 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 17:21:51,191 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,191 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,191 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,191 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,192 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,192 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,192 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 17:21:51,192 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 17:21:51,192 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 17:21:51,192 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 17:21:51,192 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 17:21:51,192 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 17:21:51,192 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 17:21:51,193 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 17:21:51,193 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 17:21:51,193 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 17:21:51,193 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 17:21:51,193 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 434) no Hoare annotation was computed. [2020-07-20 17:21:51,193 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 17:21:51,193 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 17:21:51,194 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,195 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 17:21:51,196 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 17:21:51,196 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 17:21:51,196 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 17:21:51,196 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 17:21:51,196 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 17:21:51,196 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 17:21:51,196 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 17:21:51,196 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 17:21:51,197 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 17:21:51,197 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 17:21:51,197 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 17:21:51,197 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 17:21:51,197 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,197 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,197 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,197 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,198 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,198 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 17:21:51,198 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 17:21:51,198 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 17:21:51,198 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 17:21:51,198 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 17:21:51,198 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 17:21:51,198 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 17:21:51,199 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 17:21:51,199 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 17:21:51,199 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,199 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,199 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,199 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,199 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,199 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,199 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 17:21:51,200 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,200 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 17:21:51,200 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 17:21:51,200 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 17:21:51,200 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 17:21:51,200 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 17:21:51,200 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 17:21:51,200 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 17:21:51,200 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 17:21:51,201 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 17:21:51,202 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 17:21:51,203 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 17:21:51,203 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 17:21:51,203 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 17:21:51,203 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 17:21:51,203 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 17:21:51,203 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 17:21:51,203 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 17:21:51,203 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 17:21:51,203 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))) [2020-07-20 17:21:51,203 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 17:21:51,204 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,205 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 17:21:51,206 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 17:21:51,207 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 17:21:51,208 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 17:21:51,208 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 17:21:51,208 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 17:21:51,208 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:21:51,208 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)) [2020-07-20 17:21:51,208 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:21:51,208 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:21:51,208 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)|))) [2020-07-20 17:21:51,208 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 17:21:51,208 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))) [2020-07-20 17:21:51,208 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 17:21:51,209 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 17:21:51,209 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))) [2020-07-20 17:21:51,209 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 17:21:51,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:21:51 BoogieIcfgContainer [2020-07-20 17:21:51,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:21:51,228 INFO L168 Benchmark]: Toolchain (without parser) took 18460.66 ms. Allocated memory was 144.2 MB in the beginning and 486.0 MB in the end (delta: 341.8 MB). Free memory was 99.0 MB in the beginning and 171.8 MB in the end (delta: -72.7 MB). Peak memory consumption was 302.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:51,229 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 17:21:51,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.94 ms. Allocated memory was 144.2 MB in the beginning and 205.0 MB in the end (delta: 60.8 MB). Free memory was 98.6 MB in the beginning and 171.5 MB in the end (delta: -72.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:51,230 INFO L168 Benchmark]: Boogie Preprocessor took 119.12 ms. Allocated memory is still 205.0 MB. Free memory was 171.5 MB in the beginning and 166.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:51,231 INFO L168 Benchmark]: RCFGBuilder took 1279.64 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 166.5 MB in the beginning and 180.9 MB in the end (delta: -14.4 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:51,231 INFO L168 Benchmark]: TraceAbstraction took 16249.94 ms. Allocated memory was 235.4 MB in the beginning and 486.0 MB in the end (delta: 250.6 MB). Free memory was 180.9 MB in the beginning and 171.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 292.6 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:51,234 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 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 805.94 ms. Allocated memory was 144.2 MB in the beginning and 205.0 MB in the end (delta: 60.8 MB). Free memory was 98.6 MB in the beginning and 171.5 MB in the end (delta: -72.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.12 ms. Allocated memory is still 205.0 MB. Free memory was 171.5 MB in the beginning and 166.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1279.64 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 166.5 MB in the beginning and 180.9 MB in the end (delta: -14.4 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16249.94 ms. Allocated memory was 235.4 MB in the beginning and 486.0 MB in the end (delta: 250.6 MB). Free memory was 180.9 MB in the beginning and 171.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 292.6 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: 13.7s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 8.6s, 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, 5.9s 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, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3328 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 36 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...