/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/Problem02_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:28:08,150 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 17:28:08,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:28:08,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:28:08,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:28:08,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:28:08,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:28:08,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:28:08,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:28:08,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:28:08,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:28:08,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:28:08,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:28:08,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:28:08,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:28:08,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:28:08,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:28:08,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:28:08,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:28:08,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:28:08,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:28:08,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:28:08,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:28:08,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:28:08,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:28:08,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:28:08,239 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 17:28:08,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:28:08,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:28:08,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:28:08,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:28:08,277 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:28:08,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:28:08,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:28:08,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:28:08,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:28:08,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:28:08,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:28:08,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:28:08,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:28:08,279 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:28:08,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:28:08,279 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:28:08,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:28:08,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:28:08,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:28:08,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:28:08,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:28:08,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:28:08,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:28:08,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:28:08,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:28:08,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:28:08,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:08,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:28:08,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:28:08,287 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 17:28:08,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:28:08,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:28:08,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:28:08,599 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:28:08,599 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:28:08,600 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label46.c [2020-07-20 17:28:08,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d162c86f6/048ad6686a384d90bd1cdd3e37e41fb0/FLAG0f0302398 [2020-07-20 17:28:09,257 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:28:09,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label46.c [2020-07-20 17:28:09,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d162c86f6/048ad6686a384d90bd1cdd3e37e41fb0/FLAG0f0302398 [2020-07-20 17:28:09,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d162c86f6/048ad6686a384d90bd1cdd3e37e41fb0 [2020-07-20 17:28:09,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:28:09,518 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:28:09,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:28:09,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:28:09,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:28:09,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:28:09" (1/1) ... [2020-07-20 17:28:09,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b02c26a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:09, skipping insertion in model container [2020-07-20 17:28:09,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:28:09" (1/1) ... [2020-07-20 17:28:09,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:28:09,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:28:10,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:28:10,015 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:28:10,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:28:10,280 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:28:10,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10 WrapperNode [2020-07-20 17:28:10,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:28:10,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:28:10,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:28:10,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:28:10,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10" (1/1) ... [2020-07-20 17:28:10,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10" (1/1) ... [2020-07-20 17:28:10,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10" (1/1) ... [2020-07-20 17:28:10,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10" (1/1) ... [2020-07-20 17:28:10,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10" (1/1) ... [2020-07-20 17:28:10,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10" (1/1) ... [2020-07-20 17:28:10,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10" (1/1) ... [2020-07-20 17:28:10,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:28:10,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:28:10,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:28:10,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:28:10,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10" (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 17:28:10,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:28:10,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:28:10,477 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:28:10,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:28:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:28:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:28:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:28:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:28:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:28:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:28:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:28:11,660 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:28:11,660 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:28:11,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:28:11 BoogieIcfgContainer [2020-07-20 17:28:11,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:28:11,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:28:11,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:28:11,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:28:11,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:28:09" (1/3) ... [2020-07-20 17:28:11,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91024d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:28:11, skipping insertion in model container [2020-07-20 17:28:11,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:10" (2/3) ... [2020-07-20 17:28:11,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91024d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:28:11, skipping insertion in model container [2020-07-20 17:28:11,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:28:11" (3/3) ... [2020-07-20 17:28:11,684 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label46.c [2020-07-20 17:28:11,696 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:28:11,708 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:28:11,723 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:28:11,762 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:28:11,764 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:28:11,764 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:28:11,764 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:28:11,764 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:28:11,765 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:28:11,765 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:28:11,765 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:28:11,795 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 17:28:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-20 17:28:11,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:11,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:11,811 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:11,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:11,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1613804370, now seen corresponding path program 1 times [2020-07-20 17:28:11,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:11,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722556090] [2020-07-20 17:28:11,828 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 17:28:12,063 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:12,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:12,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:28:12,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:12,187 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 17:28:12,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:12,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722556090] [2020-07-20 17:28:12,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:12,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:12,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482743385] [2020-07-20 17:28:12,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:12,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:12,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:12,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:12,217 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 17:28:13,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:13,169 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 17:28:13,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:13,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-07-20 17:28:13,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:13,189 INFO L225 Difference]: With dead ends: 619 [2020-07-20 17:28:13,189 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 17:28:13,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 17:28:13,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 17:28:13,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 17:28:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 17:28:13,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 17:28:13,268 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 118 [2020-07-20 17:28:13,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:13,270 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 17:28:13,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:13,270 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 17:28:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 17:28:13,277 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:13,277 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:13,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:13,492 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:13,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:13,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1482861857, now seen corresponding path program 1 times [2020-07-20 17:28:13,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:13,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587041111] [2020-07-20 17:28:13,494 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 17:28:13,596 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:13,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:13,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 17:28:13,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 17:28:13,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 17:28:13,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587041111] [2020-07-20 17:28:13,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 17:28:13,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 17:28:13,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613613818] [2020-07-20 17:28:13,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 17:28:13,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:13,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 17:28:13,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:13,755 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-20 17:28:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:14,477 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-20 17:28:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 17:28:14,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-07-20 17:28:14,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:14,486 INFO L225 Difference]: With dead ends: 941 [2020-07-20 17:28:14,487 INFO L226 Difference]: Without dead ends: 628 [2020-07-20 17:28:14,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:14,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-20 17:28:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-20 17:28:14,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-20 17:28:14,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-20 17:28:14,542 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 127 [2020-07-20 17:28:14,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:14,546 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-20 17:28:14,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 17:28:14,546 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-20 17:28:14,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-20 17:28:14,553 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:14,559 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:14,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:14,775 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:14,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:14,776 INFO L82 PathProgramCache]: Analyzing trace with hash -608996166, now seen corresponding path program 1 times [2020-07-20 17:28:14,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:14,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904147806] [2020-07-20 17:28:14,778 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 17:28:14,888 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:14,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:14,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:14,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 17:28:14,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:14,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904147806] [2020-07-20 17:28:14,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:14,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:14,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167737326] [2020-07-20 17:28:14,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:14,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:14,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:14,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:14,945 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-20 17:28:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:15,616 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-20 17:28:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:15,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-20 17:28:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:15,623 INFO L225 Difference]: With dead ends: 1543 [2020-07-20 17:28:15,623 INFO L226 Difference]: Without dead ends: 921 [2020-07-20 17:28:15,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 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 17:28:15,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-20 17:28:15,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-20 17:28:15,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-20 17:28:15,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-20 17:28:15,689 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 135 [2020-07-20 17:28:15,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:15,692 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-20 17:28:15,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:15,692 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-20 17:28:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 17:28:15,707 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:15,707 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:15,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:15,918 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:15,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:15,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1779819568, now seen corresponding path program 1 times [2020-07-20 17:28:15,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:15,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459087408] [2020-07-20 17:28:15,921 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 17:28:16,022 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:16,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:16,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:28:16,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:16,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:16,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459087408] [2020-07-20 17:28:16,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:16,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:16,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896006452] [2020-07-20 17:28:16,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:16,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:16,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:16,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:16,158 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 7 states. [2020-07-20 17:28:17,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:17,624 INFO L93 Difference]: Finished difference Result 2259 states and 2968 transitions. [2020-07-20 17:28:17,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:17,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-07-20 17:28:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:17,636 INFO L225 Difference]: With dead ends: 2259 [2020-07-20 17:28:17,636 INFO L226 Difference]: Without dead ends: 1346 [2020-07-20 17:28:17,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:17,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2020-07-20 17:28:17,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1346. [2020-07-20 17:28:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-07-20 17:28:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1640 transitions. [2020-07-20 17:28:17,692 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1640 transitions. Word has length 141 [2020-07-20 17:28:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:17,693 INFO L479 AbstractCegarLoop]: Abstraction has 1346 states and 1640 transitions. [2020-07-20 17:28:17,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1640 transitions. [2020-07-20 17:28:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-20 17:28:17,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:17,701 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:17,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:17,914 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:17,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:17,915 INFO L82 PathProgramCache]: Analyzing trace with hash 488288567, now seen corresponding path program 1 times [2020-07-20 17:28:17,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:17,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50273950] [2020-07-20 17:28:17,916 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 17:28:18,029 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:18,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:18,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:18,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:18,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:18,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50273950] [2020-07-20 17:28:18,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:18,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:18,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366461274] [2020-07-20 17:28:18,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:18,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:18,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:18,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:18,160 INFO L87 Difference]: Start difference. First operand 1346 states and 1640 transitions. Second operand 6 states. [2020-07-20 17:28:19,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:19,154 INFO L93 Difference]: Finished difference Result 3156 states and 3954 transitions. [2020-07-20 17:28:19,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:19,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2020-07-20 17:28:19,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:19,163 INFO L225 Difference]: With dead ends: 3156 [2020-07-20 17:28:19,164 INFO L226 Difference]: Without dead ends: 1820 [2020-07-20 17:28:19,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 292 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 17:28:19,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2020-07-20 17:28:19,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1662. [2020-07-20 17:28:19,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-07-20 17:28:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2099 transitions. [2020-07-20 17:28:19,224 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2099 transitions. Word has length 149 [2020-07-20 17:28:19,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:19,224 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 2099 transitions. [2020-07-20 17:28:19,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:19,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2099 transitions. [2020-07-20 17:28:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-20 17:28:19,230 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:19,231 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:19,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:19,444 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:19,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:19,444 INFO L82 PathProgramCache]: Analyzing trace with hash 795304748, now seen corresponding path program 1 times [2020-07-20 17:28:19,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:19,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667601038] [2020-07-20 17:28:19,445 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 17:28:19,546 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:19,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:19,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:28:19,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:19,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:19,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667601038] [2020-07-20 17:28:19,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:19,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:28:19,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523438636] [2020-07-20 17:28:19,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:28:19,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:19,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:28:19,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:19,586 INFO L87 Difference]: Start difference. First operand 1662 states and 2099 transitions. Second operand 5 states. [2020-07-20 17:28:20,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:20,425 INFO L93 Difference]: Finished difference Result 4838 states and 6389 transitions. [2020-07-20 17:28:20,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:20,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-07-20 17:28:20,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:20,445 INFO L225 Difference]: With dead ends: 4838 [2020-07-20 17:28:20,446 INFO L226 Difference]: Without dead ends: 3186 [2020-07-20 17:28:20,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:28:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2020-07-20 17:28:20,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2994. [2020-07-20 17:28:20,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2994 states. [2020-07-20 17:28:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2994 states to 2994 states and 3682 transitions. [2020-07-20 17:28:20,616 INFO L78 Accepts]: Start accepts. Automaton has 2994 states and 3682 transitions. Word has length 149 [2020-07-20 17:28:20,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:20,616 INFO L479 AbstractCegarLoop]: Abstraction has 2994 states and 3682 transitions. [2020-07-20 17:28:20,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:28:20,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2994 states and 3682 transitions. [2020-07-20 17:28:20,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-20 17:28:20,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:20,625 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:20,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:20,839 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:20,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:20,840 INFO L82 PathProgramCache]: Analyzing trace with hash -444558417, now seen corresponding path program 1 times [2020-07-20 17:28:20,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:20,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687458570] [2020-07-20 17:28:20,841 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 17:28:20,937 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:20,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:20,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:20,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 17:28:20,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:20,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687458570] [2020-07-20 17:28:20,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:20,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:20,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898780982] [2020-07-20 17:28:20,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:20,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:20,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:20,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:20,985 INFO L87 Difference]: Start difference. First operand 2994 states and 3682 transitions. Second operand 3 states. [2020-07-20 17:28:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:21,596 INFO L93 Difference]: Finished difference Result 7138 states and 8796 transitions. [2020-07-20 17:28:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:21,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-20 17:28:21,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:21,621 INFO L225 Difference]: With dead ends: 7138 [2020-07-20 17:28:21,622 INFO L226 Difference]: Without dead ends: 2974 [2020-07-20 17:28:21,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:21,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2020-07-20 17:28:21,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 2974. [2020-07-20 17:28:21,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2974 states. [2020-07-20 17:28:21,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 3572 transitions. [2020-07-20 17:28:21,733 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 3572 transitions. Word has length 153 [2020-07-20 17:28:21,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:21,734 INFO L479 AbstractCegarLoop]: Abstraction has 2974 states and 3572 transitions. [2020-07-20 17:28:21,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:21,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 3572 transitions. [2020-07-20 17:28:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 17:28:21,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:21,743 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:21,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:21,958 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:21,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:21,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1407868924, now seen corresponding path program 1 times [2020-07-20 17:28:21,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:21,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032313328] [2020-07-20 17:28:21,959 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 17:28:22,120 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:22,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:22,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:22,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:22,171 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-20 17:28:22,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:22,254 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 23 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 17:28:22,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032313328] [2020-07-20 17:28:22,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:22,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:22,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050956714] [2020-07-20 17:28:22,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:22,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:22,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:22,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:22,256 INFO L87 Difference]: Start difference. First operand 2974 states and 3572 transitions. Second operand 6 states. [2020-07-20 17:28:22,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:22,712 INFO L93 Difference]: Finished difference Result 3757 states and 4385 transitions. [2020-07-20 17:28:22,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:28:22,719 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-20 17:28:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:22,725 INFO L225 Difference]: With dead ends: 3757 [2020-07-20 17:28:22,725 INFO L226 Difference]: Without dead ends: 1352 [2020-07-20 17:28:22,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 358 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-07-20 17:28:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1204. [2020-07-20 17:28:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1204 states. [2020-07-20 17:28:22,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1394 transitions. [2020-07-20 17:28:22,766 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1394 transitions. Word has length 182 [2020-07-20 17:28:22,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:22,766 INFO L479 AbstractCegarLoop]: Abstraction has 1204 states and 1394 transitions. [2020-07-20 17:28:22,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:22,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1394 transitions. [2020-07-20 17:28:22,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-20 17:28:22,771 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:22,771 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:22,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:22,986 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:22,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:22,986 INFO L82 PathProgramCache]: Analyzing trace with hash -262886545, now seen corresponding path program 1 times [2020-07-20 17:28:22,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:22,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884094661] [2020-07-20 17:28:22,987 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 17:28:23,112 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:23,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:23,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:23,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-20 17:28:23,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 71 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 17:28:23,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884094661] [2020-07-20 17:28:23,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:23,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:23,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585003511] [2020-07-20 17:28:23,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:23,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:23,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:23,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:23,282 INFO L87 Difference]: Start difference. First operand 1204 states and 1394 transitions. Second operand 7 states. [2020-07-20 17:28:24,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:24,506 INFO L93 Difference]: Finished difference Result 2715 states and 3188 transitions. [2020-07-20 17:28:24,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 17:28:24,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-07-20 17:28:24,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:24,512 INFO L225 Difference]: With dead ends: 2715 [2020-07-20 17:28:24,513 INFO L226 Difference]: Without dead ends: 1363 [2020-07-20 17:28:24,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 372 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 17:28:24,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2020-07-20 17:28:24,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1352. [2020-07-20 17:28:24,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-07-20 17:28:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1449 transitions. [2020-07-20 17:28:24,549 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1449 transitions. Word has length 187 [2020-07-20 17:28:24,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:24,550 INFO L479 AbstractCegarLoop]: Abstraction has 1352 states and 1449 transitions. [2020-07-20 17:28:24,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:24,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1449 transitions. [2020-07-20 17:28:24,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-20 17:28:24,554 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:24,554 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:24,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:24,769 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:24,769 INFO L82 PathProgramCache]: Analyzing trace with hash 840262598, now seen corresponding path program 1 times [2020-07-20 17:28:24,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:24,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937794509] [2020-07-20 17:28:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:24,892 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:24,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:24,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:28:24,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:24,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:25,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937794509] [2020-07-20 17:28:25,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:25,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:25,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749956813] [2020-07-20 17:28:25,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:25,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:25,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:25,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:25,040 INFO L87 Difference]: Start difference. First operand 1352 states and 1449 transitions. Second operand 6 states. [2020-07-20 17:28:26,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:26,029 INFO L93 Difference]: Finished difference Result 3283 states and 3522 transitions. [2020-07-20 17:28:26,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:28:26,032 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-07-20 17:28:26,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:26,032 INFO L225 Difference]: With dead ends: 3283 [2020-07-20 17:28:26,032 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:28:26,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:26,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:28:26,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:28:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:28:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:28:26,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 195 [2020-07-20 17:28:26,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:26,045 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:28:26,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:28:26,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:28:26,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:26,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:28:27,311 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 61 [2020-07-20 17:28:27,790 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2020-07-20 17:28:28,241 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2020-07-20 17:28:28,246 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:28:28,246 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 17:28:28,246 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:28:28,246 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,246 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 17:28:28,247 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 17:28:28,248 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,249 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 17:28:28,249 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 17:28:28,249 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 17:28:28,249 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 17:28:28,249 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 17:28:28,249 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 17:28:28,249 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 17:28:28,250 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:28:28,250 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:28:28,250 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 17:28:28,250 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 17:28:28,250 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 17:28:28,250 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:28:28,250 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:28:28,250 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 17:28:28,250 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,251 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,251 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,251 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,251 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,251 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 508) no Hoare annotation was computed. [2020-07-20 17:28:28,251 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:28:28,251 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 17:28:28,251 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:28:28,252 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 17:28:28,252 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 17:28:28,252 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 17:28:28,252 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 17:28:28,252 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 17:28:28,252 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 17:28:28,252 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 17:28:28,252 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 17:28:28,253 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,253 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,253 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,253 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,253 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,253 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 17:28:28,253 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 17:28:28,253 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 17:28:28,254 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 17:28:28,254 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 17:28:28,254 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 17:28:28,254 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 17:28:28,254 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 17:28:28,254 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 17:28:28,254 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 17:28:28,254 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 17:28:28,255 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 17:28:28,255 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 17:28:28,255 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,255 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,255 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,255 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,255 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 17:28:28,256 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 17:28:28,257 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 17:28:28,257 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 17:28:28,257 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 17:28:28,257 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:28:28,257 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 17:28:28,257 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:28:28,257 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,257 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,257 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,258 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,258 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 17:28:28,258 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,258 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:28:28,258 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,258 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:28:28,258 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:28:28,258 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:28:28,258 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,259 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,259 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 17:28:28,259 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 17:28:28,259 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 17:28:28,259 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 17:28:28,259 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 17:28:28,259 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 17:28:28,260 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 17:28:28,260 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 17:28:28,260 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 17:28:28,260 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 17:28:28,260 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 17:28:28,260 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,260 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,260 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,260 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,261 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,261 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,261 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 17:28:28,261 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 17:28:28,261 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 17:28:28,261 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 17:28:28,261 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 17:28:28,261 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 17:28:28,262 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 17:28:28,262 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 17:28:28,262 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 17:28:28,262 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 17:28:28,262 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 17:28:28,262 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,262 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,262 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,262 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,263 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,263 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,263 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 17:28:28,263 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 17:28:28,263 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 17:28:28,263 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 17:28:28,263 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 17:28:28,263 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 17:28:28,263 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 17:28:28,264 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 17:28:28,264 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 17:28:28,264 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 17:28:28,264 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 17:28:28,264 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 17:28:28,264 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 17:28:28,264 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 17:28:28,264 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,264 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,265 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,265 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse5 (<= |old(~a28~0)| ~a28~0)) (.cse12 (= 1 ~a25~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a28~0 |old(~a28~0)|)) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse10 (not (<= |old(~a28~0)| 10))) (.cse11 (<= ~a28~0 10)) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse8 (and .cse1 .cse2 .cse3 .cse4)) (.cse14 (not (= 1 |old(~a19~0)|))) (.cse7 (not (<= |old(~a11~0)| 0))) (.cse15 (and .cse2 .cse3 (<= ~a17~0 7) .cse4)) (.cse16 (not (<= |old(~a17~0)| 7))) (.cse17 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse12)) (.cse13 (not (= 1 |old(~a25~0)|))) (.cse6 (not (<= |old(~a17~0)| 8))) (.cse9 (not (= 1 |old(~a11~0)|)))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 (= ~a25~0 |old(~a25~0)|)) .cse6 .cse7) (or (not (<= |old(~a28~0)| 7)) .cse8 .cse6 .cse9) (or .cse10 (and .cse1 .cse3 .cse11 .cse4 .cse5 .cse12) .cse13 .cse6 .cse7) (or .cse14 .cse15 .cse16 .cse7) (or .cse14 .cse10 (and .cse1 .cse3 .cse11 .cse4 .cse5) .cse6 .cse7) (or .cse14 .cse0 .cse8 .cse6 .cse9) (or .cse14 .cse17 .cse13 .cse6 .cse7) (or .cse15 .cse16 .cse9) (or .cse17 .cse13 (not (<= 10 |old(~a28~0)|)) .cse6 .cse9)))) [2020-07-20 17:28:28,265 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,265 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,265 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,266 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 17:28:28,266 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 17:28:28,266 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 17:28:28,266 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 17:28:28,266 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 17:28:28,266 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 17:28:28,266 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 17:28:28,267 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 17:28:28,267 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 17:28:28,267 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 17:28:28,267 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 17:28:28,267 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 17:28:28,267 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 17:28:28,267 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,267 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,268 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,268 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,268 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,268 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,268 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 17:28:28,268 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 17:28:28,268 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 17:28:28,268 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 17:28:28,269 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 17:28:28,269 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 17:28:28,269 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 17:28:28,269 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 17:28:28,269 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 17:28:28,269 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 17:28:28,269 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 17:28:28,269 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:28:28,270 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:28:28,270 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 17:28:28,270 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 17:28:28,270 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 17:28:28,270 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,270 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,270 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,270 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,271 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:28,271 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 17:28:28,271 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 17:28:28,271 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 17:28:28,271 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 17:28:28,271 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 17:28:28,271 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 17:28:28,272 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 17:28:28,272 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 17:28:28,272 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 17:28:28,272 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 17:28:28,272 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 17:28:28,272 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:28:28,272 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 17:28:28,272 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:28:28,272 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 17:28:28,273 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:28:28,273 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:28:28,273 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 17:28:28,273 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 17:28:28,273 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:28:28,273 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-20 17:28:28,273 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:28:28,273 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:28:28,274 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 17:28:28,274 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (<= 10 ~a28~0)) (.cse8 (<= ~a11~0 0)) (.cse9 (<= ~a17~0 7)) (.cse3 (<= ~a28~0 10)) (.cse5 (= 1 ~a11~0)) (.cse10 (<= ~a28~0 9)) (.cse11 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse6 (not (= 1 |old(~a25~0)|))) (.cse7 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse4 .cse7) (and .cse0 .cse8 .cse9) (and .cse1 .cse2 .cse10 .cse6) (and .cse5 .cse9) (and .cse8 .cse10 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse3 .cse6 .cse7) (and .cse1 .cse5 .cse11) (and .cse0 .cse1 .cse5 .cse10) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse1 .cse2 .cse11 (= ~a25~0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2 .cse6 .cse7))) [2020-07-20 17:28:28,274 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:28:28,274 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:28:28,274 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (<= 10 ~a28~0)) (.cse8 (<= ~a11~0 0)) (.cse9 (<= ~a17~0 7)) (.cse3 (<= ~a28~0 10)) (.cse5 (= 1 ~a11~0)) (.cse10 (<= ~a28~0 9)) (.cse11 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse6 (not (= 1 |old(~a25~0)|))) (.cse7 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse4 .cse7) (and .cse0 .cse8 .cse9) (and .cse1 .cse2 .cse10 .cse6) (and .cse5 .cse9) (and .cse8 .cse10 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse3 .cse6 .cse7) (and .cse1 .cse5 .cse11) (and .cse0 .cse1 .cse5 .cse10) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse1 .cse2 .cse11 (= ~a25~0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2 .cse6 .cse7))) [2020-07-20 17:28:28,274 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 17:28:28,275 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 17:28:28,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:28:28 BoogieIcfgContainer [2020-07-20 17:28:28,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:28:28,300 INFO L168 Benchmark]: Toolchain (without parser) took 18783.56 ms. Allocated memory was 138.9 MB in the beginning and 467.1 MB in the end (delta: 328.2 MB). Free memory was 101.2 MB in the beginning and 179.2 MB in the end (delta: -78.0 MB). Peak memory consumption was 337.1 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:28,301 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 17:28:28,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.11 ms. Allocated memory was 138.9 MB in the beginning and 208.1 MB in the end (delta: 69.2 MB). Free memory was 100.8 MB in the beginning and 179.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:28,302 INFO L168 Benchmark]: Boogie Preprocessor took 128.31 ms. Allocated memory is still 208.1 MB. Free memory was 179.0 MB in the beginning and 174.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:28,303 INFO L168 Benchmark]: RCFGBuilder took 1261.51 ms. Allocated memory was 208.1 MB in the beginning and 241.7 MB in the end (delta: 33.6 MB). Free memory was 174.0 MB in the beginning and 191.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:28,304 INFO L168 Benchmark]: TraceAbstraction took 16625.27 ms. Allocated memory was 241.7 MB in the beginning and 467.1 MB in the end (delta: 225.4 MB). Free memory was 190.0 MB in the beginning and 179.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 323.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:28,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.11 ms. Allocated memory was 138.9 MB in the beginning and 208.1 MB in the end (delta: 69.2 MB). Free memory was 100.8 MB in the beginning and 179.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.31 ms. Allocated memory is still 208.1 MB. Free memory was 179.0 MB in the beginning and 174.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1261.51 ms. Allocated memory was 208.1 MB in the beginning and 241.7 MB in the end (delta: 33.6 MB). Free memory was 174.0 MB in the beginning and 191.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16625.27 ms. Allocated memory was 241.7 MB in the beginning and 467.1 MB in the end (delta: 225.4 MB). Free memory was 190.0 MB in the beginning and 179.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 323.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 508]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a19)) || !(\old(a28) <= 7)) || ((((1 == a19 && a17 <= \old(a17)) && a11 == \old(a11)) && a28 <= 10) && 10 <= a28)) || ((((a17 <= \old(a17) && 1 == a11) && !(1 == \old(a25))) && 10 <= a28) && 1 == a25)) || ((1 == a19 && a11 <= 0) && a17 <= 7)) || (((a17 <= \old(a17) && a11 == \old(a11)) && a28 <= 9) && !(1 == \old(a25)))) || (1 == a11 && a17 <= 7)) || ((a11 <= 0 && a28 <= 9) && a17 <= 7)) || !(\old(a11) <= 0)) || ((((a17 <= \old(a17) && a11 == \old(a11)) && a28 <= 10) && !(1 == \old(a25))) && 1 == a25)) || ((a17 <= \old(a17) && 1 == a11) && a28 <= 7)) || (((1 == a19 && a17 <= \old(a17)) && 1 == a11) && a28 <= 9)) || !(\old(a17) <= 8)) || ((((1 == a19 && a17 <= \old(a17)) && a11 == \old(a11)) && a28 <= 7) && a25 == \old(a25))) || ((((1 == a19 && a17 <= \old(a17)) && a11 == \old(a11)) && !(1 == \old(a25))) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.4s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 837 SDtfs, 4358 SDslu, 485 SDs, 0 SdLazy, 6639 SolverSat, 1182 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2536 GetRequests, 2479 SyntacticMatches, 9 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2994occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 513 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 114 PreInvPairs, 164 NumberOfFragments, 675 HoareAnnotationTreeSize, 114 FomulaSimplifications, 2740 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2298 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1536 NumberOfCodeBlocks, 1536 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 2501 ConstructedInterpolants, 0 QuantifiedInterpolants, 791765 SizeOfPredicates, 11 NumberOfNonLiveVariables, 4012 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 761/827 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...