/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_FUNCTIONS --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/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:54:49,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:54:49,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:54:49,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:54:49,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:54:49,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:54:49,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:54:49,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:54:49,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:54:49,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:54:49,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:54:49,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:54:49,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:54:49,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:54:49,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:54:49,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:54:49,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:54:49,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:54:49,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:54:49,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:54:49,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:54:49,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:54:49,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:54:49,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:54:49,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:54:49,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:54:49,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:54:49,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:54:49,150 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 13:54:49,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:54:49,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:54:49,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:54:49,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:54:49,167 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:54:49,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:54:49,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:54:49,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:54:49,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:54:49,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:54:49,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:54:49,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:54:49,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:54:49,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:54:49,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:54:49,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:54:49,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:54:49,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:54:49,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:54:49,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:54:49,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:54:49,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:54:49,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:54:49,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:54:49,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:54:49,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:54:49,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:49,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:54:49,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:54:49,171 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_FUNCTIONS 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 13:54:49,446 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:54:49,461 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:54:49,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:54:49,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:54:49,468 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:54:49,468 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-21 13:54:49,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76adefd11/353b4c56f3774f7a9e05342dc2826556/FLAGbd8c00d2d [2020-07-21 13:54:50,120 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:54:50,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-21 13:54:50,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76adefd11/353b4c56f3774f7a9e05342dc2826556/FLAGbd8c00d2d [2020-07-21 13:54:50,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76adefd11/353b4c56f3774f7a9e05342dc2826556 [2020-07-21 13:54:50,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:54:50,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:54:50,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:54:50,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:54:50,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:54:50,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:54:50" (1/1) ... [2020-07-21 13:54:50,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c22891f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:50, skipping insertion in model container [2020-07-21 13:54:50,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:54:50" (1/1) ... [2020-07-21 13:54:50,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:54:50,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:54:50,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:54:50,905 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:54:51,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:54:51,158 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:54:51,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51 WrapperNode [2020-07-21 13:54:51,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:54:51,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:54:51,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:54:51,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:54:51,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51" (1/1) ... [2020-07-21 13:54:51,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51" (1/1) ... [2020-07-21 13:54:51,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51" (1/1) ... [2020-07-21 13:54:51,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51" (1/1) ... [2020-07-21 13:54:51,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51" (1/1) ... [2020-07-21 13:54:51,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51" (1/1) ... [2020-07-21 13:54:51,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51" (1/1) ... [2020-07-21 13:54:51,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:54:51,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:54:51,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:54:51,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:54:51,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51" (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 13:54:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:54:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:54:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:54:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:54:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:54:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:54:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:54:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:54:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:54:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:54:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:54:52,739 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:54:52,739 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:54:52,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:54:52 BoogieIcfgContainer [2020-07-21 13:54:52,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:54:52,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:54:52,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:54:52,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:54:52,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:54:50" (1/3) ... [2020-07-21 13:54:52,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679f7cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:54:52, skipping insertion in model container [2020-07-21 13:54:52,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:51" (2/3) ... [2020-07-21 13:54:52,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679f7cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:54:52, skipping insertion in model container [2020-07-21 13:54:52,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:54:52" (3/3) ... [2020-07-21 13:54:52,754 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-07-21 13:54:52,765 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:54:52,775 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:54:52,789 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:54:52,822 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:54:52,823 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:54:52,823 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:54:52,823 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:54:52,824 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:54:52,824 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:54:52,824 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:54:52,824 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:54:52,852 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 13:54:52,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 13:54:52,867 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:52,868 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] [2020-07-21 13:54:52,868 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:52,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:52,876 INFO L82 PathProgramCache]: Analyzing trace with hash -689906609, now seen corresponding path program 1 times [2020-07-21 13:54:52,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:52,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925587460] [2020-07-21 13:54:52,886 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 13:54:53,053 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:53,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:53,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:54:53,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:53,138 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 13:54:53,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:53,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925587460] [2020-07-21 13:54:53,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:53,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:54:53,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771044586] [2020-07-21 13:54:53,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:54:53,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:53,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:54:53,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:53,165 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 13:54:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:54,191 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 13:54:54,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:54:54,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-21 13:54:54,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:54,209 INFO L225 Difference]: With dead ends: 586 [2020-07-21 13:54:54,209 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 13:54:54,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 13:54:54,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 13:54:54,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 13:54:54,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 13:54:54,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 13:54:54,335 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 56 [2020-07-21 13:54:54,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:54,336 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 13:54:54,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:54:54,336 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 13:54:54,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 13:54:54,349 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:54,350 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, 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] [2020-07-21 13:54:54,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:54,564 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:54,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:54,565 INFO L82 PathProgramCache]: Analyzing trace with hash 371731122, now seen corresponding path program 1 times [2020-07-21 13:54:54,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:54,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007509308] [2020-07-21 13:54:54,567 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 13:54:54,653 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:54,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:54,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:54:54,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:54,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:54,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007509308] [2020-07-21 13:54:54,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:54,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:54:54,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68856372] [2020-07-21 13:54:54,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:54:54,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:54,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:54:54,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:54,708 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-21 13:54:55,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:55,436 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-21 13:54:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:54:55,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-21 13:54:55,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:55,442 INFO L225 Difference]: With dead ends: 868 [2020-07-21 13:54:55,442 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 13:54:55,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 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 13:54:55,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 13:54:55,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437. [2020-07-21 13:54:55,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 13:54:55,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-21 13:54:55,470 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 126 [2020-07-21 13:54:55,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:55,471 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-21 13:54:55,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:54:55,472 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-21 13:54:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 13:54:55,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:55,474 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, 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] [2020-07-21 13:54:55,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:55,691 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:55,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:55,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1345148817, now seen corresponding path program 1 times [2020-07-21 13:54:55,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:55,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542556168] [2020-07-21 13:54:55,693 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 13:54:55,771 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:55,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:55,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:54:55,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:55,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:55,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542556168] [2020-07-21 13:54:55,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:55,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:54:55,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440169449] [2020-07-21 13:54:55,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:54:55,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:55,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:54:55,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:55,824 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-21 13:54:56,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:56,558 INFO L93 Difference]: Finished difference Result 868 states and 1308 transitions. [2020-07-21 13:54:56,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:54:56,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 13:54:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:56,566 INFO L225 Difference]: With dead ends: 868 [2020-07-21 13:54:56,567 INFO L226 Difference]: Without dead ends: 866 [2020-07-21 13:54:56,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 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 13:54:56,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-21 13:54:56,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 437. [2020-07-21 13:54:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 13:54:56,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-21 13:54:56,611 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 133 [2020-07-21 13:54:56,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:56,613 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-21 13:54:56,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:54:56,613 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-21 13:54:56,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 13:54:56,615 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:56,619 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, 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] [2020-07-21 13:54:56,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:56,826 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:56,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:56,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1734171087, now seen corresponding path program 1 times [2020-07-21 13:54:56,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:56,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276221110] [2020-07-21 13:54:56,829 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 13:54:56,930 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:56,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:56,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:54:56,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:57,035 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:57,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:57,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276221110] [2020-07-21 13:54:57,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:57,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:54:57,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170021821] [2020-07-21 13:54:57,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:54:57,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:57,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:54:57,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:54:57,038 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 5 states. [2020-07-21 13:54:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:58,090 INFO L93 Difference]: Finished difference Result 1325 states and 2011 transitions. [2020-07-21 13:54:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:54:58,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-07-21 13:54:58,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:58,098 INFO L225 Difference]: With dead ends: 1325 [2020-07-21 13:54:58,098 INFO L226 Difference]: Without dead ends: 894 [2020-07-21 13:54:58,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:54:58,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-07-21 13:54:58,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 882. [2020-07-21 13:54:58,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-07-21 13:54:58,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1274 transitions. [2020-07-21 13:54:58,162 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1274 transitions. Word has length 181 [2020-07-21 13:54:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:58,163 INFO L479 AbstractCegarLoop]: Abstraction has 882 states and 1274 transitions. [2020-07-21 13:54:58,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:54:58,164 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1274 transitions. [2020-07-21 13:54:58,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-21 13:54:58,172 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:58,172 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:58,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:58,386 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:58,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:58,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1895595301, now seen corresponding path program 1 times [2020-07-21 13:54:58,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:58,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733907448] [2020-07-21 13:54:58,387 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 13:54:58,578 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:58,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:58,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:54:58,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:58,670 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 13:54:58,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:58,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733907448] [2020-07-21 13:54:58,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:58,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:54:58,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570810823] [2020-07-21 13:54:58,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:54:58,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:58,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:54:58,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:58,674 INFO L87 Difference]: Start difference. First operand 882 states and 1274 transitions. Second operand 3 states. [2020-07-21 13:54:59,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:59,470 INFO L93 Difference]: Finished difference Result 2044 states and 2964 transitions. [2020-07-21 13:54:59,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:54:59,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2020-07-21 13:54:59,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:59,476 INFO L225 Difference]: With dead ends: 2044 [2020-07-21 13:54:59,476 INFO L226 Difference]: Without dead ends: 735 [2020-07-21 13:54:59,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 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 13:54:59,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-07-21 13:54:59,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2020-07-21 13:54:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-07-21 13:54:59,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1050 transitions. [2020-07-21 13:54:59,504 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1050 transitions. Word has length 252 [2020-07-21 13:54:59,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:59,505 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 1050 transitions. [2020-07-21 13:54:59,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:54:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1050 transitions. [2020-07-21 13:54:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-07-21 13:54:59,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:59,510 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:59,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:59,715 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:59,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:59,715 INFO L82 PathProgramCache]: Analyzing trace with hash -461645190, now seen corresponding path program 1 times [2020-07-21 13:54:59,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:59,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170620029] [2020-07-21 13:54:59,716 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 13:54:59,840 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:59,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:59,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:54:59,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:59,923 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-21 13:54:59,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:59,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170620029] [2020-07-21 13:54:59,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:59,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:54:59,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413527111] [2020-07-21 13:54:59,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:54:59,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:59,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:54:59,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:54:59,927 INFO L87 Difference]: Start difference. First operand 735 states and 1050 transitions. Second operand 5 states. [2020-07-21 13:55:00,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:00,840 INFO L93 Difference]: Finished difference Result 1776 states and 2564 transitions. [2020-07-21 13:55:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:55:00,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-07-21 13:55:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:00,857 INFO L225 Difference]: With dead ends: 1776 [2020-07-21 13:55:00,858 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 13:55:00,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:55:00,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 13:55:00,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1039. [2020-07-21 13:55:00,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-07-21 13:55:00,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1427 transitions. [2020-07-21 13:55:00,901 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1427 transitions. Word has length 273 [2020-07-21 13:55:00,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:00,902 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1427 transitions. [2020-07-21 13:55:00,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:55:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1427 transitions. [2020-07-21 13:55:00,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-21 13:55:00,908 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:00,908 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:01,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:01,124 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:01,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:01,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1951155213, now seen corresponding path program 1 times [2020-07-21 13:55:01,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:01,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330442367] [2020-07-21 13:55:01,125 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 13:55:01,253 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:01,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:01,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:01,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:01,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:55:01,510 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:01,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330442367] [2020-07-21 13:55:01,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:55:01,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:55:01,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875111771] [2020-07-21 13:55:01,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:55:01,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:01,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:55:01,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:55:01,513 INFO L87 Difference]: Start difference. First operand 1039 states and 1427 transitions. Second operand 6 states. [2020-07-21 13:55:02,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:02,636 INFO L93 Difference]: Finished difference Result 2696 states and 3833 transitions. [2020-07-21 13:55:02,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:55:02,639 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 276 [2020-07-21 13:55:02,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:02,649 INFO L225 Difference]: With dead ends: 2696 [2020-07-21 13:55:02,649 INFO L226 Difference]: Without dead ends: 1075 [2020-07-21 13:55:02,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 548 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 13:55:02,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2020-07-21 13:55:02,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 896. [2020-07-21 13:55:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2020-07-21 13:55:02,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1131 transitions. [2020-07-21 13:55:02,702 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1131 transitions. Word has length 276 [2020-07-21 13:55:02,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:02,703 INFO L479 AbstractCegarLoop]: Abstraction has 896 states and 1131 transitions. [2020-07-21 13:55:02,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:55:02,703 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1131 transitions. [2020-07-21 13:55:02,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-07-21 13:55:02,708 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:02,709 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 13:55:02,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:02,924 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:02,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:02,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1640604435, now seen corresponding path program 1 times [2020-07-21 13:55:02,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:02,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670605802] [2020-07-21 13:55:02,927 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 13:55:03,055 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:03,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:03,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:55:03,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-21 13:55:03,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:55:03,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670605802] [2020-07-21 13:55:03,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:55:03,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:55:03,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384221681] [2020-07-21 13:55:03,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:55:03,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:03,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:55:03,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:55:03,130 INFO L87 Difference]: Start difference. First operand 896 states and 1131 transitions. Second operand 5 states. [2020-07-21 13:55:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:03,981 INFO L93 Difference]: Finished difference Result 2257 states and 2970 transitions. [2020-07-21 13:55:03,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:55:03,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 292 [2020-07-21 13:55:03,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:03,994 INFO L225 Difference]: With dead ends: 2257 [2020-07-21 13:55:03,995 INFO L226 Difference]: Without dead ends: 1367 [2020-07-21 13:55:03,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:55:03,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-07-21 13:55:04,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1339. [2020-07-21 13:55:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1339 states. [2020-07-21 13:55:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1632 transitions. [2020-07-21 13:55:04,039 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1632 transitions. Word has length 292 [2020-07-21 13:55:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:04,039 INFO L479 AbstractCegarLoop]: Abstraction has 1339 states and 1632 transitions. [2020-07-21 13:55:04,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:55:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1632 transitions. [2020-07-21 13:55:04,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-07-21 13:55:04,045 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:04,046 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 13:55:04,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:04,261 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:04,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:04,261 INFO L82 PathProgramCache]: Analyzing trace with hash 753349346, now seen corresponding path program 1 times [2020-07-21 13:55:04,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:04,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323621998] [2020-07-21 13:55:04,262 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 13:55:04,378 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:04,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:04,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:04,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:04,466 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:04,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:55:04,661 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:04,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323621998] [2020-07-21 13:55:04,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:55:04,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:55:04,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381238075] [2020-07-21 13:55:04,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:55:04,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:04,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:55:04,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:55:04,664 INFO L87 Difference]: Start difference. First operand 1339 states and 1632 transitions. Second operand 7 states. [2020-07-21 13:55:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:06,261 INFO L93 Difference]: Finished difference Result 3284 states and 4142 transitions. [2020-07-21 13:55:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 13:55:06,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 293 [2020-07-21 13:55:06,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:06,265 INFO L225 Difference]: With dead ends: 3284 [2020-07-21 13:55:06,265 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:55:06,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 584 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 13:55:06,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:55:06,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:55:06,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:55:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:55:06,277 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 293 [2020-07-21 13:55:06,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:06,277 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:55:06,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:55:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:55:06,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:55:06,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:06,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:55:07,331 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 47 [2020-07-21 13:55:07,497 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 34 [2020-07-21 13:55:07,645 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 34 [2020-07-21 13:55:07,650 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:55:07,650 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 |old(~a1~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-21 13:55:07,650 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 13:55:07,651 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 13:55:07,652 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 13:55:07,652 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 13:55:07,652 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 13:55:07,652 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 13:55:07,652 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 13:55:07,652 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 13:55:07,652 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,652 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,652 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 13:55:07,653 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,654 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 13:55:07,655 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 13:55:07,655 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 13:55:07,655 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 13:55:07,655 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 13:55:07,655 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 13:55:07,655 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 13:55:07,655 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 13:55:07,655 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 13:55:07,655 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 13:55:07,656 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,656 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,656 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,656 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,656 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,656 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 13:55:07,656 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 13:55:07,656 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 13:55:07,657 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 13:55:07,657 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 13:55:07,657 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 13:55:07,657 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 13:55:07,657 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 13:55:07,657 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 13:55:07,657 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 13:55:07,657 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 13:55:07,658 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 13:55:07,658 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 13:55:07,658 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,658 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,658 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,658 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,658 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,658 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,659 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 13:55:07,660 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 13:55:07,661 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 13:55:07,661 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 13:55:07,661 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 13:55:07,661 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 13:55:07,661 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,661 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,661 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,661 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,662 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 13:55:07,662 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,662 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,662 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 13:55:07,662 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 13:55:07,662 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 13:55:07,662 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 13:55:07,662 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,663 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 13:55:07,664 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 13:55:07,665 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (<= ~a10~0 |old(~a10~0)|)) (.cse0 (<= ~a1~0 |old(~a1~0)|)) (.cse5 (<= |old(~a10~0)| ~a10~0)) (.cse6 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse3 (<= 9 ~a19~0)) (.cse4 (<= 23 ~a1~0)) (.cse7 (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)))) (.cse8 (not (<= |old(~a19~0)| 8))) (.cse1 (and .cse2 .cse0 .cse5 .cse6))) (and (or (not (<= |old(~a19~0)| 6)) (and .cse0 (<= ~a19~0 6))) (or .cse1 (not (<= |old(~a10~0)| 2))) (or (not (< 1 |old(~a10~0)|)) (and .cse2 .cse0 (or .cse3 .cse4) .cse5 .cse6) (not (<= |old(~a19~0)| 9)) .cse7) (or .cse3 .cse8 .cse4 .cse7) (or (not (<= 4 |old(~a10~0)|)) .cse8 .cse1)))) [2020-07-21 13:55:07,665 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 13:55:07,665 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 13:55:07,665 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 13:55:07,665 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 13:55:07,666 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 13:55:07,667 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,668 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 13:55:07,669 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:55:07,670 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-21 13:55:07,670 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:55:07,670 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:55:07,670 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (<= 23 ~a1~0))) [2020-07-21 13:55:07,670 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 13:55:07,670 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-21 13:55:07,670 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 13:55:07,670 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 13:55:07,671 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-21 13:55:07,671 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 13:55:07,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:55:07 BoogieIcfgContainer [2020-07-21 13:55:07,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:55:07,693 INFO L168 Benchmark]: Toolchain (without parser) took 17280.59 ms. Allocated memory was 145.2 MB in the beginning and 459.8 MB in the end (delta: 314.6 MB). Free memory was 100.7 MB in the beginning and 230.6 MB in the end (delta: -129.9 MB). Peak memory consumption was 184.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:07,694 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 13:55:07,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.61 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 100.5 MB in the beginning and 171.4 MB in the end (delta: -70.9 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:07,695 INFO L168 Benchmark]: Boogie Preprocessor took 170.29 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:07,696 INFO L168 Benchmark]: RCFGBuilder took 1415.25 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 183.6 MB in the end (delta: -17.1 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:07,697 INFO L168 Benchmark]: TraceAbstraction took 14944.33 ms. Allocated memory was 238.0 MB in the beginning and 459.8 MB in the end (delta: 221.8 MB). Free memory was 182.2 MB in the beginning and 230.6 MB in the end (delta: -48.4 MB). Peak memory consumption was 173.4 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:07,701 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.61 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 100.5 MB in the beginning and 171.4 MB in the end (delta: -70.9 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 170.29 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1415.25 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 183.6 MB in the end (delta: -17.1 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14944.33 ms. Allocated memory was 238.0 MB in the beginning and 459.8 MB in the end (delta: 221.8 MB). Free memory was 182.2 MB in the beginning and 230.6 MB in the end (delta: -48.4 MB). Peak memory consumption was 173.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: 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: 582]: Loop Invariant Derived loop invariant: (((((((!(23 <= \old(a1)) || (a19 <= 9 && (9 <= a19 || 23 <= a1))) || !(\old(a1) <= 23)) || a19 <= 6) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || a10 <= 2) || !(\old(a19) <= 9)) || (a19 <= 8 && 4 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.6s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 424 SDtfs, 1913 SDslu, 210 SDs, 0 SdLazy, 5619 SolverSat, 1050 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2465 GetRequests, 2425 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1339occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 799 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 71 PreInvPairs, 123 NumberOfFragments, 271 HoareAnnotationTreeSize, 71 FomulaSimplifications, 12364 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3027 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1882 NumberOfCodeBlocks, 1882 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2440 ConstructedInterpolants, 0 QuantifiedInterpolants, 1449352 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3264 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1423/1431 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...