/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/Problem02_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:52:31,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:52:31,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:52:31,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 13:52:31,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:52:31,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:52:31,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:52:31,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:52:31,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:52:31,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:52:31,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:52:31,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:52:31,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:52:31,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:52:31,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:52:31,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:52:31,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:52:31,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:52:31,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:52:31,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:52:31,706 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 13:52:31,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:52:31,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:52:31,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:52:31,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:52:31,721 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:52:31,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:52:31,721 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:52:31,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:52:31,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:52:31,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:52:31,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:52:31,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:52:31,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:52:31,723 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:52:31,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:52:31,723 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:52:31,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:52:31,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:52:31,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:52:31,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:52:31,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:52:31,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:52:31,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:52:31,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:52:31,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:52:31,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:52:31,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:31,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:52:31,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:52:31,726 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 13:52:32,029 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:52:32,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:52:32,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:52:32,054 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:52:32,057 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:52:32,057 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2020-07-21 13:52:32,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e427b72/440c700a9bac439eb3df992e37fa7793/FLAGaa9fdc7b9 [2020-07-21 13:52:32,711 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:52:32,713 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2020-07-21 13:52:32,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e427b72/440c700a9bac439eb3df992e37fa7793/FLAGaa9fdc7b9 [2020-07-21 13:52:33,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e427b72/440c700a9bac439eb3df992e37fa7793 [2020-07-21 13:52:33,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:52:33,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:52:33,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:33,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:52:33,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:52:33,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:33" (1/1) ... [2020-07-21 13:52:33,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c5380d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33, skipping insertion in model container [2020-07-21 13:52:33,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:33" (1/1) ... [2020-07-21 13:52:33,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:52:33,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:52:33,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:33,678 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:52:33,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:33,845 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:52:33,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33 WrapperNode [2020-07-21 13:52:33,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:33,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:52:33,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:52:33,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:52:33,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33" (1/1) ... [2020-07-21 13:52:33,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33" (1/1) ... [2020-07-21 13:52:33,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33" (1/1) ... [2020-07-21 13:52:33,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33" (1/1) ... [2020-07-21 13:52:33,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33" (1/1) ... [2020-07-21 13:52:33,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33" (1/1) ... [2020-07-21 13:52:33,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33" (1/1) ... [2020-07-21 13:52:33,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:52:33,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:52:33,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:52:33,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:52:33,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:52:34,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:52:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:52:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:52:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:52:34,019 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:52:34,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:52:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:52:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:52:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:52:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:52:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:52:35,171 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:52:35,172 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:52:35,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:35 BoogieIcfgContainer [2020-07-21 13:52:35,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:52:35,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:52:35,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:52:35,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:52:35,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:52:33" (1/3) ... [2020-07-21 13:52:35,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddff804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:35, skipping insertion in model container [2020-07-21 13:52:35,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:33" (2/3) ... [2020-07-21 13:52:35,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddff804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:35, skipping insertion in model container [2020-07-21 13:52:35,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:35" (3/3) ... [2020-07-21 13:52:35,194 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label52.c [2020-07-21 13:52:35,205 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:52:35,216 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:52:35,226 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:52:35,250 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:52:35,251 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:52:35,251 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:52:35,251 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:52:35,251 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:52:35,251 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:52:35,252 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:52:35,252 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:52:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 13:52:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-21 13:52:35,287 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:35,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:35,288 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:35,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:35,294 INFO L82 PathProgramCache]: Analyzing trace with hash -777531634, now seen corresponding path program 1 times [2020-07-21 13:52:35,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:35,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832517541] [2020-07-21 13:52:35,303 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 13:52:35,476 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:35,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:35,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:35,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:35,578 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 13:52:35,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:35,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832517541] [2020-07-21 13:52:35,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:35,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:35,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320995192] [2020-07-21 13:52:35,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:35,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:35,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:35,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:35,603 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 13:52:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:36,501 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 13:52:36,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:36,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-07-21 13:52:36,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:36,518 INFO L225 Difference]: With dead ends: 619 [2020-07-21 13:52:36,519 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 13:52:36,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 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 13:52:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 13:52:36,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 13:52:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 13:52:36,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 13:52:36,590 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 110 [2020-07-21 13:52:36,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:36,591 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 13:52:36,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:36,591 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 13:52:36,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 13:52:36,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:36,595 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:36,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:36,809 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:36,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:36,809 INFO L82 PathProgramCache]: Analyzing trace with hash -518810049, now seen corresponding path program 1 times [2020-07-21 13:52:36,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:36,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3177139] [2020-07-21 13:52:36,811 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 13:52:36,930 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:36,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:36,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:36,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:37,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:37,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3177139] [2020-07-21 13:52:37,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:37,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:37,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391233015] [2020-07-21 13:52:37,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:37,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:37,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:37,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:37,012 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 13:52:37,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:37,630 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-21 13:52:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:37,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-21 13:52:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:37,646 INFO L225 Difference]: With dead ends: 782 [2020-07-21 13:52:37,647 INFO L226 Difference]: Without dead ends: 469 [2020-07-21 13:52:37,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 13:52:37,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-21 13:52:37,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-21 13:52:37,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-21 13:52:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-21 13:52:37,679 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 119 [2020-07-21 13:52:37,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:37,680 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-21 13:52:37,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:37,680 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-21 13:52:37,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-21 13:52:37,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:37,685 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:37,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:37,898 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:37,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:37,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1290355991, now seen corresponding path program 1 times [2020-07-21 13:52:37,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:37,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421310985] [2020-07-21 13:52:37,901 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 13:52:38,032 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:38,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:38,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 13:52:38,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:38,128 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:38,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:38,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:38,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421310985] [2020-07-21 13:52:38,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 13:52:38,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 13:52:38,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053701566] [2020-07-21 13:52:38,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 13:52:38,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:38,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 13:52:38,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:38,225 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-21 13:52:38,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:38,909 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-21 13:52:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:52:38,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2020-07-21 13:52:38,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:38,916 INFO L225 Difference]: With dead ends: 1386 [2020-07-21 13:52:38,916 INFO L226 Difference]: Without dead ends: 923 [2020-07-21 13:52:38,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 254 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:38,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-21 13:52:38,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-21 13:52:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-21 13:52:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-21 13:52:38,972 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 131 [2020-07-21 13:52:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:38,973 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-21 13:52:38,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 13:52:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-21 13:52:38,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 13:52:38,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:38,981 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:39,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:39,197 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:39,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:39,198 INFO L82 PathProgramCache]: Analyzing trace with hash 379297220, now seen corresponding path program 1 times [2020-07-21 13:52:39,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:39,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958951718] [2020-07-21 13:52:39,200 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 13:52:39,322 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:39,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:39,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:39,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:39,358 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:39,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:39,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958951718] [2020-07-21 13:52:39,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:39,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:39,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618373910] [2020-07-21 13:52:39,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:39,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:39,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:39,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:39,361 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-21 13:52:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:39,946 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-21 13:52:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:39,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-07-21 13:52:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:39,955 INFO L225 Difference]: With dead ends: 2130 [2020-07-21 13:52:39,955 INFO L226 Difference]: Without dead ends: 1213 [2020-07-21 13:52:39,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 13:52:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-21 13:52:39,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-21 13:52:39,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-21 13:52:40,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-21 13:52:40,000 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 139 [2020-07-21 13:52:40,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:40,001 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-21 13:52:40,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:40,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-21 13:52:40,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 13:52:40,009 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:40,009 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:40,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:40,224 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:40,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:40,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2035563450, now seen corresponding path program 1 times [2020-07-21 13:52:40,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:40,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538500413] [2020-07-21 13:52:40,226 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 13:52:40,342 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:40,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:40,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:52:40,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 13:52:40,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:40,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538500413] [2020-07-21 13:52:40,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:40,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:52:40,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473103204] [2020-07-21 13:52:40,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:40,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:40,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:40,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:40,416 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 5 states. [2020-07-21 13:52:41,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:41,167 INFO L93 Difference]: Finished difference Result 3660 states and 5049 transitions. [2020-07-21 13:52:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:52:41,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-07-21 13:52:41,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:41,182 INFO L225 Difference]: With dead ends: 3660 [2020-07-21 13:52:41,183 INFO L226 Difference]: Without dead ends: 2455 [2020-07-21 13:52:41,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 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 13:52:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2020-07-21 13:52:41,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2423. [2020-07-21 13:52:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-07-21 13:52:41,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3126 transitions. [2020-07-21 13:52:41,273 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3126 transitions. Word has length 145 [2020-07-21 13:52:41,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:41,273 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3126 transitions. [2020-07-21 13:52:41,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:41,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3126 transitions. [2020-07-21 13:52:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 13:52:41,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:41,282 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:41,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:41,496 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:41,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:41,498 INFO L82 PathProgramCache]: Analyzing trace with hash -553887348, now seen corresponding path program 1 times [2020-07-21 13:52:41,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:41,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748220649] [2020-07-21 13:52:41,499 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 13:52:41,632 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:41,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:41,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:41,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:41,687 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 13:52:41,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:41,761 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 19 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 13:52:41,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748220649] [2020-07-21 13:52:41,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:41,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:41,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302769220] [2020-07-21 13:52:41,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:41,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:41,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:41,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:41,764 INFO L87 Difference]: Start difference. First operand 2423 states and 3126 transitions. Second operand 6 states. [2020-07-21 13:52:42,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:42,622 INFO L93 Difference]: Finished difference Result 5334 states and 6896 transitions. [2020-07-21 13:52:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:42,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-07-21 13:52:42,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:42,639 INFO L225 Difference]: With dead ends: 5334 [2020-07-21 13:52:42,639 INFO L226 Difference]: Without dead ends: 2608 [2020-07-21 13:52:42,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 332 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 13:52:42,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2020-07-21 13:52:42,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2600. [2020-07-21 13:52:42,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2600 states. [2020-07-21 13:52:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3064 transitions. [2020-07-21 13:52:42,726 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3064 transitions. Word has length 168 [2020-07-21 13:52:42,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:42,727 INFO L479 AbstractCegarLoop]: Abstraction has 2600 states and 3064 transitions. [2020-07-21 13:52:42,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:42,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3064 transitions. [2020-07-21 13:52:42,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-21 13:52:42,734 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:42,735 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:42,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:42,949 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:42,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:42,950 INFO L82 PathProgramCache]: Analyzing trace with hash 496219156, now seen corresponding path program 1 times [2020-07-21 13:52:42,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:42,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544766437] [2020-07-21 13:52:42,950 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 13:52:43,063 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:43,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:43,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:52:43,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 13:52:43,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:43,177 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 66 proven. 19 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 13:52:43,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544766437] [2020-07-21 13:52:43,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:43,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:43,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805168564] [2020-07-21 13:52:43,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:43,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:43,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:43,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:43,179 INFO L87 Difference]: Start difference. First operand 2600 states and 3064 transitions. Second operand 7 states. [2020-07-21 13:52:44,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:44,363 INFO L93 Difference]: Finished difference Result 7158 states and 8401 transitions. [2020-07-21 13:52:44,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:52:44,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-07-21 13:52:44,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:44,388 INFO L225 Difference]: With dead ends: 7158 [2020-07-21 13:52:44,388 INFO L226 Difference]: Without dead ends: 4412 [2020-07-21 13:52:44,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:52:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4412 states. [2020-07-21 13:52:44,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4412 to 4403. [2020-07-21 13:52:44,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4403 states. [2020-07-21 13:52:44,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4403 states to 4403 states and 5049 transitions. [2020-07-21 13:52:44,535 INFO L78 Accepts]: Start accepts. Automaton has 4403 states and 5049 transitions. Word has length 172 [2020-07-21 13:52:44,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:44,536 INFO L479 AbstractCegarLoop]: Abstraction has 4403 states and 5049 transitions. [2020-07-21 13:52:44,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:44,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4403 states and 5049 transitions. [2020-07-21 13:52:44,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-21 13:52:44,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:44,548 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-21 13:52:44,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:44,763 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:44,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:44,763 INFO L82 PathProgramCache]: Analyzing trace with hash -2088565163, now seen corresponding path program 1 times [2020-07-21 13:52:44,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:44,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968949839] [2020-07-21 13:52:44,764 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 13:52:44,904 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:44,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:44,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:44,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-21 13:52:45,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 138 proven. 19 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-21 13:52:45,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968949839] [2020-07-21 13:52:45,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:45,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:45,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942183574] [2020-07-21 13:52:45,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:45,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:45,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:45,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:45,131 INFO L87 Difference]: Start difference. First operand 4403 states and 5049 transitions. Second operand 7 states. [2020-07-21 13:52:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:46,292 INFO L93 Difference]: Finished difference Result 9201 states and 10570 transitions. [2020-07-21 13:52:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:52:46,292 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2020-07-21 13:52:46,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:46,308 INFO L225 Difference]: With dead ends: 9201 [2020-07-21 13:52:46,308 INFO L226 Difference]: Without dead ends: 3920 [2020-07-21 13:52:46,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 435 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:52:46,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-07-21 13:52:46,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2020-07-21 13:52:46,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-07-21 13:52:46,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4347 transitions. [2020-07-21 13:52:46,401 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4347 transitions. Word has length 220 [2020-07-21 13:52:46,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:46,402 INFO L479 AbstractCegarLoop]: Abstraction has 3920 states and 4347 transitions. [2020-07-21 13:52:46,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:46,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4347 transitions. [2020-07-21 13:52:46,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-21 13:52:46,413 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:46,413 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:46,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:46,628 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:46,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:46,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1817129599, now seen corresponding path program 1 times [2020-07-21 13:52:46,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:46,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603309415] [2020-07-21 13:52:46,629 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 13:52:46,761 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:46,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:46,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:46,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 183 proven. 2 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-07-21 13:52:46,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 147 proven. 26 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-07-21 13:52:46,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603309415] [2020-07-21 13:52:46,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:46,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:46,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609541661] [2020-07-21 13:52:46,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:46,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:46,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:46,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:46,903 INFO L87 Difference]: Start difference. First operand 3920 states and 4347 transitions. Second operand 7 states. [2020-07-21 13:52:47,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:47,419 INFO L93 Difference]: Finished difference Result 6785 states and 7551 transitions. [2020-07-21 13:52:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:52:47,419 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-07-21 13:52:47,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:47,431 INFO L225 Difference]: With dead ends: 6785 [2020-07-21 13:52:47,432 INFO L226 Difference]: Without dead ends: 3159 [2020-07-21 13:52:47,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 462 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:52:47,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2020-07-21 13:52:47,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3013. [2020-07-21 13:52:47,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3013 states. [2020-07-21 13:52:47,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 3275 transitions. [2020-07-21 13:52:47,502 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 3275 transitions. Word has length 234 [2020-07-21 13:52:47,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:47,503 INFO L479 AbstractCegarLoop]: Abstraction has 3013 states and 3275 transitions. [2020-07-21 13:52:47,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:47,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 3275 transitions. [2020-07-21 13:52:47,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-21 13:52:47,511 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:47,511 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:47,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:47,725 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:47,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:47,725 INFO L82 PathProgramCache]: Analyzing trace with hash 56924203, now seen corresponding path program 1 times [2020-07-21 13:52:47,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:47,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358038215] [2020-07-21 13:52:47,726 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:47,858 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:47,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:47,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 13:52:47,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-07-21 13:52:47,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:47,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358038215] [2020-07-21 13:52:47,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:47,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:47,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221819998] [2020-07-21 13:52:47,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:47,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:47,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:47,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:47,898 INFO L87 Difference]: Start difference. First operand 3013 states and 3275 transitions. Second operand 3 states. [2020-07-21 13:52:48,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:48,335 INFO L93 Difference]: Finished difference Result 4803 states and 5215 transitions. [2020-07-21 13:52:48,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:48,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-07-21 13:52:48,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:48,337 INFO L225 Difference]: With dead ends: 4803 [2020-07-21 13:52:48,337 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:52:48,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 234 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 13:52:48,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:52:48,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:52:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:52:48,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:52:48,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2020-07-21 13:52:48,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:48,350 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:52:48,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:48,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:52:48,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:52:48,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:48,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:52:50,397 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 135 DAG size of output: 81 [2020-07-21 13:52:50,719 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-07-21 13:52:51,012 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-07-21 13:52:51,016 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:51,016 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 13:52:51,017 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:51,017 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,017 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,017 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,017 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,017 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,017 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 13:52:51,017 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 13:52:51,017 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 13:52:51,018 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 13:52:51,018 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 13:52:51,018 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 13:52:51,018 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 13:52:51,018 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 13:52:51,018 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 13:52:51,018 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 13:52:51,018 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:51,018 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:51,019 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 13:52:51,019 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,019 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,019 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,019 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,019 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 13:52:51,019 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,019 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 13:52:51,019 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 13:52:51,020 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 13:52:51,020 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 13:52:51,020 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 13:52:51,020 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 13:52:51,020 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 13:52:51,020 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:51,020 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:51,020 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 13:52:51,020 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 13:52:51,021 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 13:52:51,021 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:51,021 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:51,021 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 13:52:51,021 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,021 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,021 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,021 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,022 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,022 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 484) no Hoare annotation was computed. [2020-07-21 13:52:51,022 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:51,022 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 13:52:51,022 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:51,022 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 13:52:51,022 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 13:52:51,022 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 13:52:51,023 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 13:52:51,023 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 13:52:51,023 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 13:52:51,023 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 13:52:51,023 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 13:52:51,023 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,023 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,023 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,023 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 13:52:51,024 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 13:52:51,025 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 13:52:51,025 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,025 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,025 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,025 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,025 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,025 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 13:52:51,025 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:51,026 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 13:52:51,027 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,028 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,029 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 13:52:51,030 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (<= ~a11~0 0)) (.cse22 (< 0 |old(~a11~0)|))) (let ((.cse6 (not (= 1 |old(~a25~0)|))) (.cse12 (= 1 ~a25~0)) (.cse21 (not (<= |old(~a28~0)| 7))) (.cse14 (<= ~a17~0 8)) (.cse15 (<= 8 ~a17~0)) (.cse23 (not (= 1 ~a11~0))) (.cse20 (or .cse0 .cse22)) (.cse24 (<= ~a28~0 10)) (.cse17 (= 1 |old(~a11~0)|)) (.cse2 (not (<= 8 |old(~a17~0)|))) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse13 (not (= 1 |old(~a19~0)|))) (.cse18 (not (<= 10 |old(~a28~0)|))) (.cse19 (<= 10 ~a28~0)) (.cse1 (not (<= |old(~a28~0)| 10))) (.cse8 (<= ~a17~0 |old(~a17~0)|)) (.cse9 (<= ~a28~0 |old(~a28~0)|)) (.cse10 (= ~a19~0 |old(~a19~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse16 (= ~a25~0 |old(~a25~0)|)) (.cse5 (not (<= 9 |old(~a28~0)|))) (.cse7 (not (<= |old(~a17~0)| 7))) (.cse4 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 .cse7 (and .cse8 .cse9 .cse10 .cse11 .cse12)) (or .cse13 .cse1 .cse5 .cse2 (and .cse9 .cse14 .cse15 .cse10 .cse11 .cse16) .cse3) (or .cse1 .cse17 .cse6 .cse18 .cse19 .cse3) (or .cse13 (and .cse8 .cse9 .cse20 .cse10 .cse16) .cse7) (or .cse13 .cse21 (and .cse0 .cse9 .cse10 .cse12) .cse6 .cse4) (or .cse13 .cse17 .cse2 .cse6 .cse18 (and (or (and .cse9 .cse14 .cse15 .cse19 .cse22 .cse10 .cse12) (and .cse0 .cse9 .cse14 .cse15 .cse19 .cse10 .cse12)) .cse23) .cse3) (or .cse21 .cse2 .cse3 (and .cse9 .cse14 .cse15 .cse10 .cse16)) (or .cse1 .cse17 .cse2 .cse3 (and .cse9 .cse14 .cse15 .cse23 .cse10 .cse16)) (or .cse1 .cse7 (and .cse8 .cse24 .cse19 .cse10 .cse16) .cse18) (or .cse13 (and .cse20 .cse24 .cse19 .cse10) .cse1 .cse18) (or .cse1 .cse5 .cse17 .cse2 .cse3 .cse11) (or .cse13 .cse7 .cse18 .cse19) (or .cse1 (and .cse8 .cse0 .cse9 .cse10 .cse11 .cse16) .cse5 .cse7 .cse4)))) [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 13:52:51,031 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,032 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 13:52:51,033 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 13:52:51,034 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:51,035 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:51,036 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 13:52:51,036 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 13:52:51,036 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:51,036 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-21 13:52:51,036 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:52:51,036 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:51,036 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 13:52:51,036 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (<= ~a28~0 7)) (.cse4 (= 1 ~a25~0)) (.cse1 (<= ~a11~0 0)) (.cse10 (<= ~a17~0 7)) (.cse11 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse12 (<= 10 ~a28~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 10)) (.cse2 (not (= 1 |old(~a25~0)|))) (.cse7 (not (= 1 ~a11~0)))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse2 .cse7 .cse4) (and .cse0 .cse5 .cse1 (= ~a25~0 |old(~a25~0)|) .cse3) (and .cse0 .cse5 .cse6 .cse8 .cse2 .cse9) (and .cse5 .cse6 .cse2 .cse3) (and .cse0 .cse2 .cse10 .cse11) (and .cse8 .cse2 .cse10 .cse11 .cse9 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse8 .cse2 .cse10 .cse12 .cse11) (and .cse1 .cse8 .cse2 .cse10 .cse11 .cse9) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse8 .cse12) (and .cse5 .cse6 .cse8 .cse2 .cse7))) [2020-07-21 13:52:51,036 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:51,036 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:51,037 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (<= ~a28~0 7)) (.cse4 (= 1 ~a25~0)) (.cse1 (<= ~a11~0 0)) (.cse10 (<= ~a17~0 7)) (.cse11 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse12 (<= 10 ~a28~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 10)) (.cse2 (not (= 1 |old(~a25~0)|))) (.cse7 (not (= 1 ~a11~0)))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse2 .cse7 .cse4) (and .cse0 .cse5 .cse1 (= ~a25~0 |old(~a25~0)|) .cse3) (and .cse0 .cse5 .cse6 .cse8 .cse2 .cse9) (and .cse5 .cse6 .cse2 .cse3) (and .cse0 .cse2 .cse10 .cse11) (and .cse8 .cse2 .cse10 .cse11 .cse9 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse8 .cse2 .cse10 .cse12 .cse11) (and .cse1 .cse8 .cse2 .cse10 .cse11 .cse9) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse8 .cse12) (and .cse5 .cse6 .cse8 .cse2 .cse7))) [2020-07-21 13:52:51,037 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 13:52:51,037 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 13:52:51,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:52:51 BoogieIcfgContainer [2020-07-21 13:52:51,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:52:51,068 INFO L168 Benchmark]: Toolchain (without parser) took 17952.05 ms. Allocated memory was 144.7 MB in the beginning and 491.8 MB in the end (delta: 347.1 MB). Free memory was 100.8 MB in the beginning and 139.0 MB in the end (delta: -38.2 MB). Peak memory consumption was 365.6 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:51,072 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 144.7 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 13:52:51,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.55 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 100.4 MB in the beginning and 169.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:51,074 INFO L168 Benchmark]: Boogie Preprocessor took 99.90 ms. Allocated memory is still 203.9 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:51,076 INFO L168 Benchmark]: RCFGBuilder took 1236.60 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.4 MB in the beginning and 180.8 MB in the end (delta: -16.4 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:51,077 INFO L168 Benchmark]: TraceAbstraction took 15881.56 ms. Allocated memory was 235.9 MB in the beginning and 491.8 MB in the end (delta: 255.9 MB). Free memory was 179.1 MB in the beginning and 139.0 MB in the end (delta: 40.1 MB). Peak memory consumption was 352.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:51,083 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 144.7 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.55 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 100.4 MB in the beginning and 169.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.90 ms. Allocated memory is still 203.9 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1236.60 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.4 MB in the beginning and 180.8 MB in the end (delta: -16.4 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15881.56 ms. Allocated memory was 235.9 MB in the beginning and 491.8 MB in the end (delta: 255.9 MB). Free memory was 179.1 MB in the beginning and 139.0 MB in the end (delta: 40.1 MB). Peak memory consumption was 352.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 484]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a19)) || !(\old(a28) <= 7)) || ((((1 == a19 && a11 <= 0) && !(1 == \old(a25))) && a28 <= 7) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && !(1 == a11)) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a25 == \old(a25)) && a28 <= 7)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && 9 <= a28)) || (((a17 <= \old(a17) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7)) || (((1 == a19 && !(1 == \old(a25))) && a17 <= 7) && 7 < \old(a17))) || (((((a28 <= 10 && !(1 == \old(a25))) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && 1 == a25)) || !(\old(a11) <= 0)) || ((((a28 <= 10 && !(1 == \old(a25))) && a17 <= 7) && 10 <= a28) && 7 < \old(a17))) || (((((a11 <= 0 && a28 <= 10) && !(1 == \old(a25))) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28)) || !(\old(a17) <= 8)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && !(1 == a11)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.3s, OverallIterations: 10, TraceHistogramMax: 7, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 969 SDtfs, 4022 SDslu, 472 SDs, 0 SdLazy, 5878 SolverSat, 994 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2606 GetRequests, 2560 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4403occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 199 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 153 PreInvPairs, 223 NumberOfFragments, 924 HoareAnnotationTreeSize, 153 FomulaSimplifications, 1818 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2151 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1674 NumberOfCodeBlocks, 1674 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2584 ConstructedInterpolants, 0 QuantifiedInterpolants, 819159 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4472 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 1642/1746 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...