/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:35:07,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:35:07,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:35:07,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:35:07,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:35:07,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:35:07,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:35:07,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:35:07,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:35:07,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:35:07,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:35:07,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:35:07,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:35:07,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:35:07,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:35:07,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:35:07,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:35:07,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:35:07,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:35:07,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:35:07,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:35:07,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:35:07,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:35:07,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:35:07,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:35:07,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:35:07,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:35:07,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:35:07,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 16:35:07,826 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:35:07,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:35:07,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:35:07,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:35:07,828 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:35:07,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:35:07,830 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:35:07,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:35:07,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:35:07,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:35:07,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:35:07,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:35:07,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:35:07,832 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:35:07,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:35:07,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:35:07,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:35:07,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:35:07,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:35:07,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:35:07,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:35:07,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:35:07,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:35:07,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:35:07,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:35:07,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:35:07,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:07,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:35:07,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:35:07,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 16:35:08,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:35:08,166 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:35:08,169 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:35:08,171 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:35:08,171 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:35:08,172 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 16:35:08,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e28875ea8/ac2e85a17bac44268710b11a09856224/FLAG2c9453348 [2020-07-21 16:35:08,793 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:35:08,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 16:35:08,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e28875ea8/ac2e85a17bac44268710b11a09856224/FLAG2c9453348 [2020-07-21 16:35:09,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e28875ea8/ac2e85a17bac44268710b11a09856224 [2020-07-21 16:35:09,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:35:09,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:35:09,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:35:09,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:35:09,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:35:09,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:35:09" (1/1) ... [2020-07-21 16:35:09,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd08649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09, skipping insertion in model container [2020-07-21 16:35:09,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:35:09" (1/1) ... [2020-07-21 16:35:09,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:35:09,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:35:09,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:35:09,645 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:35:09,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:35:09,791 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:35:09,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09 WrapperNode [2020-07-21 16:35:09,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:35:09,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:35:09,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:35:09,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:35:09,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09" (1/1) ... [2020-07-21 16:35:09,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09" (1/1) ... [2020-07-21 16:35:09,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09" (1/1) ... [2020-07-21 16:35:09,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09" (1/1) ... [2020-07-21 16:35:09,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09" (1/1) ... [2020-07-21 16:35:09,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09" (1/1) ... [2020-07-21 16:35:09,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09" (1/1) ... [2020-07-21 16:35:09,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:35:09,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:35:09,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:35:09,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:35:09,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:35:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:35:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:35:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:35:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:35:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:35:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:35:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:35:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:35:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:35:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:35:09,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:35:11,075 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:35:11,075 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:35:11,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:35:11 BoogieIcfgContainer [2020-07-21 16:35:11,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:35:11,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:35:11,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:35:11,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:35:11,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:35:09" (1/3) ... [2020-07-21 16:35:11,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:35:11, skipping insertion in model container [2020-07-21 16:35:11,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:09" (2/3) ... [2020-07-21 16:35:11,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:35:11, skipping insertion in model container [2020-07-21 16:35:11,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:35:11" (3/3) ... [2020-07-21 16:35:11,090 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-07-21 16:35:11,100 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:35:11,108 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:35:11,121 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:35:11,146 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:35:11,146 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:35:11,146 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:35:11,146 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:35:11,147 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:35:11,147 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:35:11,147 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:35:11,147 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:35:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 16:35:11,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 16:35:11,196 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:11,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:11,197 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:11,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:11,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1960329542, now seen corresponding path program 1 times [2020-07-21 16:35:11,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:11,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256160405] [2020-07-21 16:35:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:11,431 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:11,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:11,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:35:11,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:11,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:11,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:11,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256160405] [2020-07-21 16:35:11,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:11,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:11,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568732161] [2020-07-21 16:35:11,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:11,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:11,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:11,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:11,564 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 16:35:12,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:12,436 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 16:35:12,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:12,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-07-21 16:35:12,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:12,460 INFO L225 Difference]: With dead ends: 619 [2020-07-21 16:35:12,461 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 16:35:12,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:12,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 16:35:12,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 16:35:12,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 16:35:12,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 16:35:12,591 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 116 [2020-07-21 16:35:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:12,592 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 16:35:12,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:12,593 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 16:35:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 16:35:12,603 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:12,604 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:12,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:12,818 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:12,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:12,819 INFO L82 PathProgramCache]: Analyzing trace with hash 539238327, now seen corresponding path program 1 times [2020-07-21 16:35:12,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:12,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276875547] [2020-07-21 16:35:12,820 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:12,922 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:12,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:12,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:12,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:12,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:12,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276875547] [2020-07-21 16:35:12,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:12,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:12,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402977274] [2020-07-21 16:35:12,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:12,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:12,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:12,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:12,995 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 16:35:13,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:13,581 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-21 16:35:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:13,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-21 16:35:13,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:13,591 INFO L225 Difference]: With dead ends: 782 [2020-07-21 16:35:13,591 INFO L226 Difference]: Without dead ends: 469 [2020-07-21 16:35:13,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:13,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-21 16:35:13,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-21 16:35:13,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-21 16:35:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-21 16:35:13,617 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 125 [2020-07-21 16:35:13,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:13,618 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-21 16:35:13,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:13,618 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-21 16:35:13,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 16:35:13,621 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:13,621 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:13,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:13,836 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:13,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:13,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1524654879, now seen corresponding path program 1 times [2020-07-21 16:35:13,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:13,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074814429] [2020-07-21 16:35:13,839 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:13,974 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:13,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:13,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:13,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:14,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:14,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074814429] [2020-07-21 16:35:14,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:14,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:14,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084379553] [2020-07-21 16:35:14,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:14,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:14,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:14,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:14,026 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 3 states. [2020-07-21 16:35:14,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:14,572 INFO L93 Difference]: Finished difference Result 1378 states and 1794 transitions. [2020-07-21 16:35:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:14,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 16:35:14,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:14,579 INFO L225 Difference]: With dead ends: 1378 [2020-07-21 16:35:14,579 INFO L226 Difference]: Without dead ends: 915 [2020-07-21 16:35:14,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:14,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-07-21 16:35:14,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 909. [2020-07-21 16:35:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-07-21 16:35:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1153 transitions. [2020-07-21 16:35:14,620 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1153 transitions. Word has length 137 [2020-07-21 16:35:14,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:14,621 INFO L479 AbstractCegarLoop]: Abstraction has 909 states and 1153 transitions. [2020-07-21 16:35:14,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:14,622 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1153 transitions. [2020-07-21 16:35:14,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 16:35:14,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:14,626 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:14,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:14,840 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:14,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:14,842 INFO L82 PathProgramCache]: Analyzing trace with hash -689459332, now seen corresponding path program 1 times [2020-07-21 16:35:14,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:14,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683824310] [2020-07-21 16:35:14,843 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:14,959 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:14,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:14,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:14,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 16:35:15,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:15,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683824310] [2020-07-21 16:35:15,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:15,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:15,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876409540] [2020-07-21 16:35:15,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:15,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:15,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:15,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:15,055 INFO L87 Difference]: Start difference. First operand 909 states and 1153 transitions. Second operand 3 states. [2020-07-21 16:35:15,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:15,679 INFO L93 Difference]: Finished difference Result 2101 states and 2761 transitions. [2020-07-21 16:35:15,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:15,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-07-21 16:35:15,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:15,692 INFO L225 Difference]: With dead ends: 2101 [2020-07-21 16:35:15,692 INFO L226 Difference]: Without dead ends: 1198 [2020-07-21 16:35:15,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:15,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-07-21 16:35:15,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1197. [2020-07-21 16:35:15,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-07-21 16:35:15,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1554 transitions. [2020-07-21 16:35:15,734 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1554 transitions. Word has length 145 [2020-07-21 16:35:15,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:15,735 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1554 transitions. [2020-07-21 16:35:15,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:15,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1554 transitions. [2020-07-21 16:35:15,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 16:35:15,739 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:15,740 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:15,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:15,954 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:15,954 INFO L82 PathProgramCache]: Analyzing trace with hash 2094439476, now seen corresponding path program 1 times [2020-07-21 16:35:15,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:15,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009664614] [2020-07-21 16:35:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:16,056 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:16,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:16,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:16,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:16,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:35:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:16,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009664614] [2020-07-21 16:35:16,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:35:16,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:35:16,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298999004] [2020-07-21 16:35:16,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:35:16,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:16,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:35:16,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:35:16,212 INFO L87 Difference]: Start difference. First operand 1197 states and 1554 transitions. Second operand 6 states. [2020-07-21 16:35:17,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:17,273 INFO L93 Difference]: Finished difference Result 2745 states and 3656 transitions. [2020-07-21 16:35:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:35:17,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2020-07-21 16:35:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:17,287 INFO L225 Difference]: With dead ends: 2745 [2020-07-21 16:35:17,287 INFO L226 Difference]: Without dead ends: 1554 [2020-07-21 16:35:17,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 294 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:35:17,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2020-07-21 16:35:17,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1525. [2020-07-21 16:35:17,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2020-07-21 16:35:17,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1965 transitions. [2020-07-21 16:35:17,337 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1965 transitions. Word has length 149 [2020-07-21 16:35:17,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:17,337 INFO L479 AbstractCegarLoop]: Abstraction has 1525 states and 1965 transitions. [2020-07-21 16:35:17,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:35:17,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1965 transitions. [2020-07-21 16:35:17,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 16:35:17,342 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:17,343 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:17,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:17,558 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:17,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:17,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1890827528, now seen corresponding path program 1 times [2020-07-21 16:35:17,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:17,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870022185] [2020-07-21 16:35:17,561 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:17,650 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:17,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:17,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:17,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:17,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:17,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870022185] [2020-07-21 16:35:17,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:17,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:17,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283225168] [2020-07-21 16:35:17,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:17,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:17,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:17,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:17,697 INFO L87 Difference]: Start difference. First operand 1525 states and 1965 transitions. Second operand 3 states. [2020-07-21 16:35:18,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:18,259 INFO L93 Difference]: Finished difference Result 4536 states and 5943 transitions. [2020-07-21 16:35:18,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:18,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-21 16:35:18,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:18,276 INFO L225 Difference]: With dead ends: 4536 [2020-07-21 16:35:18,276 INFO L226 Difference]: Without dead ends: 3017 [2020-07-21 16:35:18,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2020-07-21 16:35:18,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3017. [2020-07-21 16:35:18,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-07-21 16:35:18,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3879 transitions. [2020-07-21 16:35:18,411 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3879 transitions. Word has length 153 [2020-07-21 16:35:18,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:18,411 INFO L479 AbstractCegarLoop]: Abstraction has 3017 states and 3879 transitions. [2020-07-21 16:35:18,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:18,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3879 transitions. [2020-07-21 16:35:18,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 16:35:18,422 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:18,422 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:18,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:18,637 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:18,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:18,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1324893951, now seen corresponding path program 1 times [2020-07-21 16:35:18,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:18,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005871832] [2020-07-21 16:35:18,638 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:18,737 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:18,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:18,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:18,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 16:35:18,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:35:18,855 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 16:35:18,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005871832] [2020-07-21 16:35:18,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:35:18,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:35:18,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696801293] [2020-07-21 16:35:18,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:35:18,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:18,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:35:18,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:35:18,857 INFO L87 Difference]: Start difference. First operand 3017 states and 3879 transitions. Second operand 6 states. [2020-07-21 16:35:19,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:19,692 INFO L93 Difference]: Finished difference Result 6088 states and 7892 transitions. [2020-07-21 16:35:19,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:35:19,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-07-21 16:35:19,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:19,706 INFO L225 Difference]: With dead ends: 6088 [2020-07-21 16:35:19,707 INFO L226 Difference]: Without dead ends: 3077 [2020-07-21 16:35:19,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:35:19,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2020-07-21 16:35:19,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 3055. [2020-07-21 16:35:19,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3055 states. [2020-07-21 16:35:19,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 3691 transitions. [2020-07-21 16:35:19,804 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 3691 transitions. Word has length 165 [2020-07-21 16:35:19,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:19,805 INFO L479 AbstractCegarLoop]: Abstraction has 3055 states and 3691 transitions. [2020-07-21 16:35:19,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:35:19,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 3691 transitions. [2020-07-21 16:35:19,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 16:35:19,813 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:19,813 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:20,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:20,028 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:20,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:20,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1116878025, now seen corresponding path program 1 times [2020-07-21 16:35:20,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:20,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431059607] [2020-07-21 16:35:20,029 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:20,125 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:20,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:20,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 16:35:20,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:20,186 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 16:35:20,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:20,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431059607] [2020-07-21 16:35:20,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:20,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:35:20,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738062878] [2020-07-21 16:35:20,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:35:20,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:20,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:35:20,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:35:20,190 INFO L87 Difference]: Start difference. First operand 3055 states and 3691 transitions. Second operand 5 states. [2020-07-21 16:35:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:20,997 INFO L93 Difference]: Finished difference Result 8100 states and 10229 transitions. [2020-07-21 16:35:21,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:35:21,006 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-07-21 16:35:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:21,030 INFO L225 Difference]: With dead ends: 8100 [2020-07-21 16:35:21,030 INFO L226 Difference]: Without dead ends: 5051 [2020-07-21 16:35:21,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 16:35:21,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2020-07-21 16:35:21,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 4979. [2020-07-21 16:35:21,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4979 states. [2020-07-21 16:35:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 5904 transitions. [2020-07-21 16:35:21,155 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 5904 transitions. Word has length 167 [2020-07-21 16:35:21,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:21,156 INFO L479 AbstractCegarLoop]: Abstraction has 4979 states and 5904 transitions. [2020-07-21 16:35:21,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:35:21,156 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 5904 transitions. [2020-07-21 16:35:21,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-21 16:35:21,170 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:21,170 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:21,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:21,384 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:21,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:21,384 INFO L82 PathProgramCache]: Analyzing trace with hash -27942242, now seen corresponding path program 1 times [2020-07-21 16:35:21,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:21,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017308668] [2020-07-21 16:35:21,385 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:21,508 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:21,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:21,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:21,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:21,560 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-07-21 16:35:21,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:35:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 120 proven. 39 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-21 16:35:21,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017308668] [2020-07-21 16:35:21,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:35:21,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:35:21,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230620735] [2020-07-21 16:35:21,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:35:21,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:21,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:35:21,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:35:21,665 INFO L87 Difference]: Start difference. First operand 4979 states and 5904 transitions. Second operand 6 states. [2020-07-21 16:35:22,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:22,510 INFO L93 Difference]: Finished difference Result 9959 states and 11817 transitions. [2020-07-21 16:35:22,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:35:22,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-07-21 16:35:22,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:22,528 INFO L225 Difference]: With dead ends: 9959 [2020-07-21 16:35:22,528 INFO L226 Difference]: Without dead ends: 4373 [2020-07-21 16:35:22,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:35:22,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2020-07-21 16:35:22,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4362. [2020-07-21 16:35:22,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4362 states. [2020-07-21 16:35:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 5018 transitions. [2020-07-21 16:35:22,635 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 5018 transitions. Word has length 235 [2020-07-21 16:35:22,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:22,635 INFO L479 AbstractCegarLoop]: Abstraction has 4362 states and 5018 transitions. [2020-07-21 16:35:22,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:35:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 5018 transitions. [2020-07-21 16:35:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-21 16:35:22,652 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:22,652 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:22,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:22,868 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:22,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:22,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1585046762, now seen corresponding path program 1 times [2020-07-21 16:35:22,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:22,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677986022] [2020-07-21 16:35:22,869 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:23,003 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:23,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:23,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:23,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:23,055 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-21 16:35:23,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:35:23,204 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 144 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 16:35:23,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677986022] [2020-07-21 16:35:23,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:35:23,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:35:23,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750523837] [2020-07-21 16:35:23,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:35:23,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:23,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:35:23,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:35:23,208 INFO L87 Difference]: Start difference. First operand 4362 states and 5018 transitions. Second operand 7 states. [2020-07-21 16:35:24,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:24,560 INFO L93 Difference]: Finished difference Result 9712 states and 11161 transitions. [2020-07-21 16:35:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:35:24,563 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-07-21 16:35:24,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:24,582 INFO L225 Difference]: With dead ends: 9712 [2020-07-21 16:35:24,582 INFO L226 Difference]: Without dead ends: 5356 [2020-07-21 16:35:24,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 473 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:35:24,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2020-07-21 16:35:24,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 3478. [2020-07-21 16:35:24,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3478 states. [2020-07-21 16:35:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 3796 transitions. [2020-07-21 16:35:24,689 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 3796 transitions. Word has length 239 [2020-07-21 16:35:24,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:24,690 INFO L479 AbstractCegarLoop]: Abstraction has 3478 states and 3796 transitions. [2020-07-21 16:35:24,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:35:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 3796 transitions. [2020-07-21 16:35:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-21 16:35:24,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:24,700 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:24,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:24,914 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:24,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:24,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1885983282, now seen corresponding path program 1 times [2020-07-21 16:35:24,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:24,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181268706] [2020-07-21 16:35:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:25,064 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:25,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:25,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:25,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-21 16:35:25,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:35:25,314 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 151 proven. 13 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-21 16:35:25,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181268706] [2020-07-21 16:35:25,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:35:25,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:35:25,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551781599] [2020-07-21 16:35:25,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:35:25,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:25,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:35:25,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:35:25,317 INFO L87 Difference]: Start difference. First operand 3478 states and 3796 transitions. Second operand 7 states. [2020-07-21 16:35:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:26,570 INFO L93 Difference]: Finished difference Result 8111 states and 8911 transitions. [2020-07-21 16:35:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 16:35:26,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-07-21 16:35:26,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:26,594 INFO L225 Difference]: With dead ends: 8111 [2020-07-21 16:35:26,595 INFO L226 Difference]: Without dead ends: 3460 [2020-07-21 16:35:26,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 487 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:35:26,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2020-07-21 16:35:26,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3314. [2020-07-21 16:35:26,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3314 states. [2020-07-21 16:35:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3314 states to 3314 states and 3562 transitions. [2020-07-21 16:35:26,677 INFO L78 Accepts]: Start accepts. Automaton has 3314 states and 3562 transitions. Word has length 246 [2020-07-21 16:35:26,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:26,678 INFO L479 AbstractCegarLoop]: Abstraction has 3314 states and 3562 transitions. [2020-07-21 16:35:26,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:35:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3314 states and 3562 transitions. [2020-07-21 16:35:26,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-21 16:35:26,738 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:26,738 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:26,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:26,939 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:26,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:26,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1018854099, now seen corresponding path program 1 times [2020-07-21 16:35:26,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:26,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514325864] [2020-07-21 16:35:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:27,077 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:27,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:27,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:27,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-07-21 16:35:27,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:35:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 152 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-21 16:35:27,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514325864] [2020-07-21 16:35:27,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:35:27,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:35:27,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141029151] [2020-07-21 16:35:27,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:35:27,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:27,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:35:27,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:35:27,222 INFO L87 Difference]: Start difference. First operand 3314 states and 3562 transitions. Second operand 7 states. [2020-07-21 16:35:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:27,693 INFO L93 Difference]: Finished difference Result 6455 states and 6951 transitions. [2020-07-21 16:35:27,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 16:35:27,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2020-07-21 16:35:27,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:27,706 INFO L225 Difference]: With dead ends: 6455 [2020-07-21 16:35:27,706 INFO L226 Difference]: Without dead ends: 3147 [2020-07-21 16:35:27,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 494 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 16:35:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2020-07-21 16:35:27,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3141. [2020-07-21 16:35:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3141 states. [2020-07-21 16:35:27,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 3339 transitions. [2020-07-21 16:35:27,760 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 3339 transitions. Word has length 250 [2020-07-21 16:35:27,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:27,761 INFO L479 AbstractCegarLoop]: Abstraction has 3141 states and 3339 transitions. [2020-07-21 16:35:27,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:35:27,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 3339 transitions. [2020-07-21 16:35:27,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-21 16:35:27,769 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:27,770 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:27,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:27,984 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:27,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:27,984 INFO L82 PathProgramCache]: Analyzing trace with hash 631595354, now seen corresponding path program 1 times [2020-07-21 16:35:27,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:27,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365077547] [2020-07-21 16:35:27,985 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:28,141 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:28,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:28,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 16:35:28,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:28,233 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-07-21 16:35:28,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:28,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365077547] [2020-07-21 16:35:28,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:28,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:28,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360881579] [2020-07-21 16:35:28,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:28,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:28,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:28,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:28,235 INFO L87 Difference]: Start difference. First operand 3141 states and 3339 transitions. Second operand 3 states. [2020-07-21 16:35:28,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:28,657 INFO L93 Difference]: Finished difference Result 5070 states and 5390 transitions. [2020-07-21 16:35:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:28,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-07-21 16:35:28,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:28,659 INFO L225 Difference]: With dead ends: 5070 [2020-07-21 16:35:28,659 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:35:28,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:28,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:35:28,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:35:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:35:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:35:28,670 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 271 [2020-07-21 16:35:28,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:28,670 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:35:28,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:28,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:35:28,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:35:28,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:28,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:35:29,411 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 141 [2020-07-21 16:35:29,559 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 141 [2020-07-21 16:35:31,851 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 181 DAG size of output: 98 [2020-07-21 16:35:32,671 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 69 [2020-07-21 16:35:33,479 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 69 [2020-07-21 16:35:33,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:35:33,484 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-21 16:35:33,485 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:35:33,485 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,485 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,485 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,485 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,485 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,485 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 16:35:33,486 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 16:35:33,486 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 16:35:33,486 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 16:35:33,486 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 16:35:33,486 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 16:35:33,486 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 16:35:33,487 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 16:35:33,487 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 16:35:33,487 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 16:35:33,487 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:35:33,487 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:35:33,487 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 16:35:33,487 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,488 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,488 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,488 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,488 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 16:35:33,488 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,488 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 16:35:33,489 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 16:35:33,489 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 16:35:33,489 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 16:35:33,489 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 16:35:33,489 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 16:35:33,489 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 16:35:33,489 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:35:33,490 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:35:33,490 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 16:35:33,490 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 16:35:33,490 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 16:35:33,490 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:35:33,490 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:35:33,491 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 16:35:33,491 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,491 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,491 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,491 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,491 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,491 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 502) no Hoare annotation was computed. [2020-07-21 16:35:33,492 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:35:33,492 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 16:35:33,492 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:35:33,492 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 16:35:33,492 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 16:35:33,492 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 16:35:33,493 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 16:35:33,493 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 16:35:33,493 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 16:35:33,493 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 16:35:33,493 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 16:35:33,493 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,493 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,494 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,494 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,494 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,494 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 16:35:33,494 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 16:35:33,494 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 16:35:33,494 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 16:35:33,495 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 16:35:33,495 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 16:35:33,495 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 16:35:33,495 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 16:35:33,495 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 16:35:33,495 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 16:35:33,496 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 16:35:33,496 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 16:35:33,496 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 16:35:33,496 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,496 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,496 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,496 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,496 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,497 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 16:35:33,497 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 16:35:33,497 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 16:35:33,497 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 16:35:33,497 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 16:35:33,497 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 16:35:33,497 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 16:35:33,498 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 16:35:33,498 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 16:35:33,498 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 16:35:33,498 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 16:35:33,498 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 16:35:33,498 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 16:35:33,498 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:35:33,499 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 16:35:33,499 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:35:33,499 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,499 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,499 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,499 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,500 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 16:35:33,500 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,500 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:35:33,500 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,500 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:35:33,500 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:35:33,500 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:35:33,501 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,501 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,501 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 16:35:33,501 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 16:35:33,501 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 16:35:33,501 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 16:35:33,501 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 16:35:33,502 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 16:35:33,502 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 16:35:33,502 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 16:35:33,502 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 16:35:33,502 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 16:35:33,502 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 16:35:33,502 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,503 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,503 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,503 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,503 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,503 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,503 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 16:35:33,503 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 16:35:33,504 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 16:35:33,504 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 16:35:33,504 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 16:35:33,504 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 16:35:33,504 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 16:35:33,504 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 16:35:33,504 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 16:35:33,505 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 16:35:33,505 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 16:35:33,505 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,505 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,505 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,505 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,505 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,505 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,506 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 16:35:33,506 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 16:35:33,506 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 16:35:33,506 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 16:35:33,506 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 16:35:33,506 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 16:35:33,506 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 16:35:33,507 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 16:35:33,507 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 16:35:33,507 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 16:35:33,507 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 16:35:33,507 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 16:35:33,507 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 16:35:33,507 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 16:35:33,507 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,508 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,508 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,508 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse20 (<= ~a17~0 8)) (.cse21 (<= 8 ~a17~0)) (.cse24 (not (= 1 ~a11~0))) (.cse4 (<= ~a17~0 |old(~a17~0)|)) (.cse23 (<= ~a28~0 |old(~a28~0)|)) (.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse7 (<= |old(~a28~0)| ~a28~0))) (let ((.cse9 (and .cse4 .cse23 .cse6 .cse7)) (.cse5 (<= ~a28~0 9)) (.cse0 (not (<= 9 |old(~a28~0)|))) (.cse14 (not (<= 11 |old(~a28~0)|))) (.cse27 (and .cse23 .cse20 .cse21 .cse6 .cse24 .cse7)) (.cse3 (not (<= |old(~a17~0)| 7))) (.cse8 (not (= 1 |old(~a19~0)|))) (.cse12 (<= ~a25~0 0)) (.cse15 (not (<= |old(~a28~0)| 10))) (.cse19 (<= ~a28~0 10)) (.cse17 (not (<= 10 |old(~a28~0)|))) (.cse22 (= 1 |old(~a11~0)|)) (.cse16 (<= ~a11~0 0)) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse11 (not (<= |old(~a25~0)| 0))) (.cse18 (not (<= |old(~a11~0)| 0))) (.cse25 (not (<= |old(~a28~0)| 7))) (.cse10 (not (<= 8 |old(~a17~0)|))) (.cse2 (not (<= |old(~a19~0)| 0))) (.cse26 (and .cse23 .cse20 .cse21 .cse6 .cse7)) (.cse13 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7)) (or .cse8 .cse1 .cse3 .cse9) (or .cse8 .cse0 .cse1 .cse10 .cse11 .cse12 .cse13) (or .cse8 .cse14 .cse3 .cse9) (or .cse15 .cse16 .cse10 .cse2 .cse17 .cse13 .cse18) (or .cse8 .cse15 (and .cse19 .cse6 .cse7) .cse17) (or .cse8 .cse15 .cse16 .cse17 .cse18) (or .cse8 .cse0 .cse1 .cse10 (and .cse20 .cse21 .cse5 .cse6 .cse7) .cse13) (or .cse22 .cse1 .cse10 .cse11 .cse2 (and .cse23 .cse20 .cse21 .cse12 .cse24 .cse6 .cse7) .cse13) (or (and .cse16 .cse12) .cse0 .cse1 .cse11 .cse2 .cse3 .cse18) (or .cse8 .cse15 .cse11 .cse12 .cse17) (or .cse8 .cse25 .cse10 .cse13 .cse26) (or .cse8 .cse16 .cse13 .cse18) (or .cse8 .cse22 .cse1 .cse10 .cse27 .cse13) (or .cse8 .cse22 .cse10 .cse14 .cse27 .cse13) (or .cse15 .cse11 .cse2 .cse3 .cse17 (and .cse4 .cse19 .cse12 .cse6 .cse7)) (or .cse8 .cse25 .cse11 .cse12 .cse13 .cse18) (or .cse15 .cse22 .cse10 .cse2 (and .cse20 .cse21 .cse19 .cse24 .cse6 .cse7) .cse17 .cse13) (or .cse16 .cse25 .cse10 .cse2 .cse13 .cse18) (or .cse25 .cse22 .cse10 .cse2 .cse24 .cse13) (or .cse16 .cse1 .cse10 .cse11 .cse2 .cse13 .cse18) (or .cse25 .cse10 .cse2 .cse26 .cse13)))) [2020-07-21 16:35:33,509 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,509 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,509 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,509 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 16:35:33,509 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 16:35:33,509 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 16:35:33,551 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 16:35:33,551 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 16:35:33,551 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 16:35:33,551 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 16:35:33,551 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 16:35:33,551 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 16:35:33,552 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 16:35:33,552 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 16:35:33,552 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 16:35:33,552 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 16:35:33,552 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,552 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,552 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,552 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,552 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,553 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,553 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 16:35:33,553 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 16:35:33,553 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 16:35:33,553 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 16:35:33,553 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 16:35:33,553 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 16:35:33,554 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 16:35:33,554 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 16:35:33,554 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 16:35:33,554 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 16:35:33,554 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 16:35:33,554 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:35:33,554 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:35:33,554 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 16:35:33,554 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 16:35:33,555 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 16:35:33,556 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:35:33,557 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 16:35:33,557 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:35:33,557 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:35:33,557 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a17~0)| 8)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (<= ~a25~0 0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 16:35:33,557 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse13 (<= 10 ~a28~0)) (.cse11 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= 11 ~a28~0)) (.cse12 (<= |old(~a28~0)| 10)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (<= ~a28~0 10)) (.cse14 (not (= 1 ~a11~0))) (.cse5 (<= ~a19~0 0)) (.cse1 (<= ~a25~0 0)) (.cse8 (<= ~a28~0 7)) (.cse9 (= 1 ~a19~0)) (.cse6 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (<= 8 ~a17~0)) (.cse10 (<= ~a28~0 9)) (.cse4 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse5 .cse8) (not (<= |old(~a28~0)| 7)) (and .cse9 .cse10 .cse2 .cse11 .cse3 .cse12) (and .cse6 .cse7 .cse0 .cse13 .cse14 .cse5) (and .cse9 .cse2 .cse11 .cse15 .cse3 .cse12) (not (<= |old(~a11~0)| 0)) (and .cse9 .cse6 .cse7 .cse10 .cse11 .cse14 .cse12) (and .cse0 .cse13 (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse9 .cse6 .cse7 .cse8) (and .cse9 .cse6 .cse7 .cse11 .cse14 .cse15 .cse12) (and .cse10 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a17~0)| 8)) (and .cse6 .cse7 .cse0 .cse1 .cse14 .cse5) (and .cse9 .cse6 (<= ~a11~0 0) .cse1 .cse8) (and .cse9 .cse6 .cse7 .cse10 .cse4))) [2020-07-21 16:35:33,557 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:35:33,557 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:35:33,557 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse13 (<= 10 ~a28~0)) (.cse11 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= 11 ~a28~0)) (.cse12 (<= |old(~a28~0)| 10)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (<= ~a28~0 10)) (.cse14 (not (= 1 ~a11~0))) (.cse5 (<= ~a19~0 0)) (.cse1 (<= ~a25~0 0)) (.cse8 (<= ~a28~0 7)) (.cse9 (= 1 ~a19~0)) (.cse6 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (<= 8 ~a17~0)) (.cse10 (<= ~a28~0 9)) (.cse4 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse5 .cse8) (not (<= |old(~a28~0)| 7)) (and .cse9 .cse10 .cse2 .cse11 .cse3 .cse12) (and .cse6 .cse7 .cse0 .cse13 .cse14 .cse5) (and .cse9 .cse2 .cse11 .cse15 .cse3 .cse12) (not (<= |old(~a11~0)| 0)) (and .cse9 .cse6 .cse7 .cse10 .cse11 .cse14 .cse12) (and .cse0 .cse13 (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse9 .cse6 .cse7 .cse8) (and .cse9 .cse6 .cse7 .cse11 .cse14 .cse15 .cse12) (and .cse10 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a17~0)| 8)) (and .cse6 .cse7 .cse0 .cse1 .cse14 .cse5) (and .cse9 .cse6 (<= ~a11~0 0) .cse1 .cse8) (and .cse9 .cse6 .cse7 .cse10 .cse4))) [2020-07-21 16:35:33,558 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 16:35:33,558 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 16:35:33,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:35:33 BoogieIcfgContainer [2020-07-21 16:35:33,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:35:33,583 INFO L168 Benchmark]: Toolchain (without parser) took 24478.09 ms. Allocated memory was 145.8 MB in the beginning and 637.0 MB in the end (delta: 491.3 MB). Free memory was 100.3 MB in the beginning and 568.7 MB in the end (delta: -468.3 MB). Peak memory consumption was 515.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:33,584 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 16:35:33,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.81 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 99.9 MB in the beginning and 171.1 MB in the end (delta: -71.2 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:33,585 INFO L168 Benchmark]: Boogie Preprocessor took 109.56 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:33,585 INFO L168 Benchmark]: RCFGBuilder took 1179.06 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 166.3 MB in the beginning and 181.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:33,586 INFO L168 Benchmark]: TraceAbstraction took 22498.49 ms. Allocated memory was 238.6 MB in the beginning and 637.0 MB in the end (delta: 398.5 MB). Free memory was 181.5 MB in the beginning and 568.7 MB in the end (delta: -387.1 MB). Peak memory consumption was 504.3 MB. Max. memory is 7.1 GB. [2020-07-21 16:35:33,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 685.81 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 99.9 MB in the beginning and 171.1 MB in the end (delta: -71.2 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.56 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1179.06 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 166.3 MB in the beginning and 181.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22498.49 ms. Allocated memory was 238.6 MB in the beginning and 637.0 MB in the end (delta: 398.5 MB). Free memory was 181.5 MB in the beginning and 568.7 MB in the end (delta: -387.1 MB). Peak memory consumption was 504.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 502]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((!(1 == \old(a19)) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || (((a17 <= \old(a17) && 8 <= a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (((((1 == a19 && a28 <= 9) && a17 <= 7) && a19 <= \old(a19)) && 7 < \old(a17)) && \old(a28) <= 10)) || (((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && 10 <= a28) && !(1 == a11)) && a19 <= 0)) || (((((1 == a19 && a17 <= 7) && a19 <= \old(a19)) && 11 <= a28) && 7 < \old(a17)) && \old(a28) <= 10)) || !(\old(a11) <= 0)) || ((((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && a19 <= \old(a19)) && !(1 == a11)) && \old(a28) <= 10)) || ((a28 <= 10 && 10 <= a28) && a19 == \old(a19))) || !(\old(a25) <= 0)) || (((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 7)) || ((((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a19 <= \old(a19)) && !(1 == a11)) && 11 <= a28) && \old(a28) <= 10)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a17) <= 8)) || (((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && a25 <= 0) && !(1 == a11)) && a19 <= 0)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a25 <= 0) && a28 <= 7)) || ((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && 9 <= a28) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.7s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1175 SDtfs, 4811 SDslu, 588 SDs, 0 SdLazy, 8336 SolverSat, 1334 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3700 GetRequests, 3638 SyntacticMatches, 9 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4979occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 2173 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 229 PreInvPairs, 299 NumberOfFragments, 1227 HoareAnnotationTreeSize, 229 FomulaSimplifications, 4846 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7987 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2398 NumberOfCodeBlocks, 2398 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3663 ConstructedInterpolants, 0 QuantifiedInterpolants, 1074481 SizeOfPredicates, 17 NumberOfNonLiveVariables, 6023 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 2266/2365 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...