/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:05:58,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:05:58,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:05:59,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:05:59,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:05:59,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:05:59,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:05:59,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:05:59,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:05:59,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:05:59,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:05:59,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:05:59,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:05:59,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:05:59,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:05:59,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:05:59,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:05:59,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:05:59,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:05:59,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:05:59,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:05:59,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:05:59,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:05:59,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:05:59,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:05:59,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:05:59,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:05:59,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:05:59,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:05:59,097 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:05:59,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:05:59,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:05:59,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:05:59,099 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:05:59,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:05:59,100 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:05:59,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:05:59,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:05:59,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:05:59,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:05:59,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:05:59,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:05:59,103 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:05:59,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:05:59,104 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:05:59,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:05:59,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:05:59,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:05:59,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:05:59,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:05:59,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:05:59,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:05:59,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:05:59,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:05:59,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:05:59,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:05:59,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:05:59,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:05:59,108 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 -> 4 [2020-07-20 14:05:59,383 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:05:59,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:05:59,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:05:59,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:05:59,407 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:05:59,408 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-20 14:05:59,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb16f186/f0936e44866c4f7bb3bd202930e1ffae/FLAG175a25f6f [2020-07-20 14:06:00,075 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:06:00,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-20 14:06:00,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb16f186/f0936e44866c4f7bb3bd202930e1ffae/FLAG175a25f6f [2020-07-20 14:06:00,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb16f186/f0936e44866c4f7bb3bd202930e1ffae [2020-07-20 14:06:00,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:06:00,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:06:00,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:06:00,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:06:00,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:06:00,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:06:00" (1/1) ... [2020-07-20 14:06:00,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@666d22b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:00, skipping insertion in model container [2020-07-20 14:06:00,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:06:00" (1/1) ... [2020-07-20 14:06:00,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:06:00,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:06:00,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:06:00,841 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:06:01,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:06:01,179 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:06:01,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01 WrapperNode [2020-07-20 14:06:01,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:06:01,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:06:01,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:06:01,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:06:01,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01" (1/1) ... [2020-07-20 14:06:01,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01" (1/1) ... [2020-07-20 14:06:01,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01" (1/1) ... [2020-07-20 14:06:01,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01" (1/1) ... [2020-07-20 14:06:01,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01" (1/1) ... [2020-07-20 14:06:01,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01" (1/1) ... [2020-07-20 14:06:01,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01" (1/1) ... [2020-07-20 14:06:01,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:06:01,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:06:01,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:06:01,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:06:01,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:06:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:06:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:06:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:06:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:06:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:06:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:06:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:06:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:06:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:06:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:06:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:06:02,872 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:06:02,873 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:06:02,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:06:02 BoogieIcfgContainer [2020-07-20 14:06:02,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:06:02,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:06:02,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:06:02,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:06:02,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:06:00" (1/3) ... [2020-07-20 14:06:02,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164d7a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:06:02, skipping insertion in model container [2020-07-20 14:06:02,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:01" (2/3) ... [2020-07-20 14:06:02,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164d7a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:06:02, skipping insertion in model container [2020-07-20 14:06:02,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:06:02" (3/3) ... [2020-07-20 14:06:02,896 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-07-20 14:06:02,907 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:06:02,919 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:06:02,932 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:06:02,960 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:06:02,960 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:06:02,960 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:06:02,960 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:06:02,960 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:06:02,961 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:06:02,961 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:06:02,961 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:06:02,985 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 14:06:02,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 14:06:02,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:03,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:03,000 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:03,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:03,007 INFO L82 PathProgramCache]: Analyzing trace with hash 597031182, now seen corresponding path program 1 times [2020-07-20 14:06:03,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:03,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901928741] [2020-07-20 14:06:03,016 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:03,222 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:03,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:03,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:06:03,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:06:03,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:03,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901928741] [2020-07-20 14:06:03,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:03,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:06:03,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607607434] [2020-07-20 14:06:03,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:06:03,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:03,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:06:03,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:03,369 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 14:06:04,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:04,242 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-20 14:06:04,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:06:04,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-20 14:06:04,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:04,268 INFO L225 Difference]: With dead ends: 547 [2020-07-20 14:06:04,269 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 14:06:04,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:04,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 14:06:04,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 14:06:04,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 14:06:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2020-07-20 14:06:04,359 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 120 [2020-07-20 14:06:04,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:04,360 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2020-07-20 14:06:04,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:06:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2020-07-20 14:06:04,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-20 14:06:04,365 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:04,365 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:04,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:04,572 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:04,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:04,573 INFO L82 PathProgramCache]: Analyzing trace with hash 330455461, now seen corresponding path program 1 times [2020-07-20 14:06:04,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:04,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453425507] [2020-07-20 14:06:04,575 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:04,695 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:04,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:04,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:06:04,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:04,812 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:06:04,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:04,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453425507] [2020-07-20 14:06:04,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:04,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:06:04,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284240089] [2020-07-20 14:06:04,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:06:04,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:04,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:06:04,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:06:04,817 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 5 states. [2020-07-20 14:06:05,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:05,692 INFO L93 Difference]: Finished difference Result 701 states and 1021 transitions. [2020-07-20 14:06:05,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:06:05,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2020-07-20 14:06:05,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:05,699 INFO L225 Difference]: With dead ends: 701 [2020-07-20 14:06:05,699 INFO L226 Difference]: Without dead ends: 429 [2020-07-20 14:06:05,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:06:05,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-07-20 14:06:05,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 417. [2020-07-20 14:06:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-20 14:06:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-07-20 14:06:05,752 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 130 [2020-07-20 14:06:05,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:05,752 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-07-20 14:06:05,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:06:05,752 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-07-20 14:06:05,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-20 14:06:05,772 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:05,772 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:05,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:05,985 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:05,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:05,987 INFO L82 PathProgramCache]: Analyzing trace with hash -46995225, now seen corresponding path program 1 times [2020-07-20 14:06:05,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:05,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549317024] [2020-07-20 14:06:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:06,104 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:06,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:06,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:06:06,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:06:06,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:06,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549317024] [2020-07-20 14:06:06,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:06,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:06:06,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403883052] [2020-07-20 14:06:06,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:06:06,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:06,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:06:06,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:06,168 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 3 states. [2020-07-20 14:06:06,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:06,791 INFO L93 Difference]: Finished difference Result 1235 states and 1769 transitions. [2020-07-20 14:06:06,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:06:06,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-07-20 14:06:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:06,805 INFO L225 Difference]: With dead ends: 1235 [2020-07-20 14:06:06,805 INFO L226 Difference]: Without dead ends: 824 [2020-07-20 14:06:06,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:06,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-07-20 14:06:06,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 689. [2020-07-20 14:06:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-07-20 14:06:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 919 transitions. [2020-07-20 14:06:06,879 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 919 transitions. Word has length 131 [2020-07-20 14:06:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:06,880 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 919 transitions. [2020-07-20 14:06:06,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:06:06,880 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 919 transitions. [2020-07-20 14:06:06,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 14:06:06,884 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:06,884 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:07,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:07,100 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:07,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:07,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1219225115, now seen corresponding path program 1 times [2020-07-20 14:06:07,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:07,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277757798] [2020-07-20 14:06:07,103 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:07,241 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:07,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:07,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:06:07,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:06:07,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:07,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277757798] [2020-07-20 14:06:07,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:07,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:06:07,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451516506] [2020-07-20 14:06:07,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:06:07,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:07,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:06:07,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:07,300 INFO L87 Difference]: Start difference. First operand 689 states and 919 transitions. Second operand 3 states. [2020-07-20 14:06:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:07,876 INFO L93 Difference]: Finished difference Result 2051 states and 2809 transitions. [2020-07-20 14:06:07,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:06:07,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-20 14:06:07,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:07,888 INFO L225 Difference]: With dead ends: 2051 [2020-07-20 14:06:07,888 INFO L226 Difference]: Without dead ends: 1368 [2020-07-20 14:06:07,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:07,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-07-20 14:06:07,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1368. [2020-07-20 14:06:07,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2020-07-20 14:06:07,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1798 transitions. [2020-07-20 14:06:07,959 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1798 transitions. Word has length 137 [2020-07-20 14:06:07,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:07,960 INFO L479 AbstractCegarLoop]: Abstraction has 1368 states and 1798 transitions. [2020-07-20 14:06:07,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:06:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1798 transitions. [2020-07-20 14:06:07,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 14:06:07,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:07,967 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:08,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:08,181 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:08,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:08,182 INFO L82 PathProgramCache]: Analyzing trace with hash -2034569339, now seen corresponding path program 1 times [2020-07-20 14:06:08,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:08,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550806552] [2020-07-20 14:06:08,184 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:08,388 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:08,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:08,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:06:08,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:08,430 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:06:08,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:08,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550806552] [2020-07-20 14:06:08,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:08,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:06:08,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569705404] [2020-07-20 14:06:08,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:06:08,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:08,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:06:08,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:08,433 INFO L87 Difference]: Start difference. First operand 1368 states and 1798 transitions. Second operand 3 states. [2020-07-20 14:06:08,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:08,969 INFO L93 Difference]: Finished difference Result 3135 states and 4212 transitions. [2020-07-20 14:06:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:06:08,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-20 14:06:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:08,979 INFO L225 Difference]: With dead ends: 3135 [2020-07-20 14:06:08,979 INFO L226 Difference]: Without dead ends: 1773 [2020-07-20 14:06:08,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:08,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2020-07-20 14:06:09,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1773. [2020-07-20 14:06:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1773 states. [2020-07-20 14:06:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2284 transitions. [2020-07-20 14:06:09,038 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2284 transitions. Word has length 146 [2020-07-20 14:06:09,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:09,039 INFO L479 AbstractCegarLoop]: Abstraction has 1773 states and 2284 transitions. [2020-07-20 14:06:09,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:06:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2284 transitions. [2020-07-20 14:06:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-20 14:06:09,046 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:09,047 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:09,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:09,261 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:09,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:09,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1521407610, now seen corresponding path program 1 times [2020-07-20 14:06:09,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:09,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222998941] [2020-07-20 14:06:09,263 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:09,395 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:09,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:09,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:06:09,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:06:09,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:06:09,575 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:06:09,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222998941] [2020-07-20 14:06:09,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:06:09,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:06:09,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44098575] [2020-07-20 14:06:09,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:06:09,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:09,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:06:09,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:06:09,578 INFO L87 Difference]: Start difference. First operand 1773 states and 2284 transitions. Second operand 6 states. [2020-07-20 14:06:10,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:10,287 INFO L93 Difference]: Finished difference Result 3878 states and 5128 transitions. [2020-07-20 14:06:10,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:06:10,295 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-07-20 14:06:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:10,309 INFO L225 Difference]: With dead ends: 3878 [2020-07-20 14:06:10,310 INFO L226 Difference]: Without dead ends: 2111 [2020-07-20 14:06:10,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:06:10,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2020-07-20 14:06:10,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 1797. [2020-07-20 14:06:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1797 states. [2020-07-20 14:06:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2210 transitions. [2020-07-20 14:06:10,399 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2210 transitions. Word has length 175 [2020-07-20 14:06:10,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:10,399 INFO L479 AbstractCegarLoop]: Abstraction has 1797 states and 2210 transitions. [2020-07-20 14:06:10,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:06:10,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2210 transitions. [2020-07-20 14:06:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-20 14:06:10,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:10,407 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:10,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:10,620 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:10,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:10,621 INFO L82 PathProgramCache]: Analyzing trace with hash 795457010, now seen corresponding path program 1 times [2020-07-20 14:06:10,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:10,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619615051] [2020-07-20 14:06:10,621 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:10,777 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:10,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:10,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:06:10,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:10,820 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 14:06:10,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:10,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619615051] [2020-07-20 14:06:10,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:10,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:06:10,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207774032] [2020-07-20 14:06:10,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:06:10,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:10,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:06:10,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:10,823 INFO L87 Difference]: Start difference. First operand 1797 states and 2210 transitions. Second operand 3 states. [2020-07-20 14:06:11,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:11,392 INFO L93 Difference]: Finished difference Result 4809 states and 6006 transitions. [2020-07-20 14:06:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:06:11,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-20 14:06:11,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:11,393 INFO L225 Difference]: With dead ends: 4809 [2020-07-20 14:06:11,393 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:06:11,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:11,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:06:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:06:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:06:11,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:06:11,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-07-20 14:06:11,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:11,404 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:06:11,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:06:11,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:06:11,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:06:11,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:11,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:06:12,575 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 57 [2020-07-20 14:06:12,696 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-07-20 14:06:12,820 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-07-20 14:06:12,824 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:06:12,825 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-20 14:06:12,825 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:06:12,825 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 14:06:12,825 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 14:06:12,825 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,825 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,825 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,825 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,825 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 14:06:12,826 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 14:06:12,827 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 14:06:12,827 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,827 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,827 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,827 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,827 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,827 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,828 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 14:06:12,828 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 14:06:12,828 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 14:06:12,828 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 14:06:12,828 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 14:06:12,828 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 14:06:12,829 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 14:06:12,829 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 14:06:12,829 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 14:06:12,829 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 14:06:12,829 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 14:06:12,830 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 518) no Hoare annotation was computed. [2020-07-20 14:06:12,830 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 14:06:12,830 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 14:06:12,830 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 14:06:12,830 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 14:06:12,830 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 14:06:12,831 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 14:06:12,832 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 14:06:12,832 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 14:06:12,832 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,832 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,832 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,832 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,832 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,832 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 14:06:12,832 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 14:06:12,833 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 14:06:12,833 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 14:06:12,833 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 14:06:12,833 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 14:06:12,833 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 14:06:12,833 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 14:06:12,833 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 14:06:12,833 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 14:06:12,834 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 14:06:12,834 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 14:06:12,834 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 14:06:12,834 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,834 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,834 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,834 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 14:06:12,835 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 14:06:12,836 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,837 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,838 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,839 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 14:06:12,839 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 14:06:12,839 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 14:06:12,839 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 14:06:12,839 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 14:06:12,839 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 14:06:12,839 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 14:06:12,839 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 14:06:12,840 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 14:06:12,840 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 14:06:12,840 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse3 (= 1 ~a20~0)) (.cse4 (not (<= 15 |old(~a8~0)|))) (.cse9 (<= 5 ~a16~0)) (.cse10 (not (<= 5 |old(~a16~0)|))) (.cse2 (not (<= |old(~a8~0)| 13))) (.cse8 (<= ~a8~0 13)) (.cse5 (<= ~a16~0 |old(~a16~0)|)) (.cse12 (<= ~a17~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse7 (not (= 1 |old(~a21~0)|))) (.cse11 (not (<= |old(~a17~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (and .cse5 (<= 15 ~a8~0) .cse6) .cse7) (or .cse0 .cse2 (and .cse5 .cse8 .cse9 .cse3 .cse6) .cse10 .cse7) (or .cse9 .cse1 .cse10 .cse7 .cse11) (or .cse0 .cse2 (and .cse5 .cse8 .cse12 .cse3 .cse6) .cse11) (or .cse4 .cse12 .cse7 .cse11) (or .cse0 .cse4 .cse3 .cse7) (or .cse0 .cse1 .cse7 (and .cse5 .cse3 .cse6)) (or .cse4 .cse9 .cse10 .cse7) (or .cse1 .cse2 (and .cse5 .cse8 .cse6)) (or (and .cse5 .cse12 .cse6) .cse1 .cse7 .cse11))) [2020-07-20 14:06:12,840 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 14:06:12,840 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,841 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,841 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,841 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,841 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 14:06:12,841 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,841 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,841 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 14:06:12,841 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 14:06:12,841 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,842 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 14:06:12,843 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 14:06:12,844 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 14:06:12,845 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 14:06:12,845 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 14:06:12,845 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 14:06:12,845 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 14:06:12,845 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 14:06:12,845 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:06:12,845 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-20 14:06:12,846 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:06:12,846 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:06:12,846 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-20 14:06:12,846 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 14:06:12,846 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (and .cse3 .cse4 .cse2) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)))) [2020-07-20 14:06:12,846 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 14:06:12,847 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 14:06:12,847 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (and .cse3 .cse4 .cse2) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)))) [2020-07-20 14:06:12,847 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 14:06:12,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:06:12 BoogieIcfgContainer [2020-07-20 14:06:12,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:06:12,874 INFO L168 Benchmark]: Toolchain (without parser) took 12552.23 ms. Allocated memory was 138.9 MB in the beginning and 383.3 MB in the end (delta: 244.3 MB). Free memory was 101.8 MB in the beginning and 247.6 MB in the end (delta: -145.8 MB). Peak memory consumption was 257.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:12,874 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 138.9 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 14:06:12,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.39 ms. Allocated memory was 138.9 MB in the beginning and 207.1 MB in the end (delta: 68.2 MB). Free memory was 101.8 MB in the beginning and 175.9 MB in the end (delta: -74.1 MB). Peak memory consumption was 39.9 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:12,876 INFO L168 Benchmark]: Boogie Preprocessor took 133.17 ms. Allocated memory is still 207.1 MB. Free memory was 175.9 MB in the beginning and 170.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:12,877 INFO L168 Benchmark]: RCFGBuilder took 1569.51 ms. Allocated memory was 207.1 MB in the beginning and 240.6 MB in the end (delta: 33.6 MB). Free memory was 170.8 MB in the beginning and 185.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:12,879 INFO L168 Benchmark]: TraceAbstraction took 9986.50 ms. Allocated memory was 240.6 MB in the beginning and 383.3 MB in the end (delta: 142.6 MB). Free memory was 185.1 MB in the beginning and 247.6 MB in the end (delta: -62.5 MB). Peak memory consumption was 238.6 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:12,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 138.9 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 856.39 ms. Allocated memory was 138.9 MB in the beginning and 207.1 MB in the end (delta: 68.2 MB). Free memory was 101.8 MB in the beginning and 175.9 MB in the end (delta: -74.1 MB). Peak memory consumption was 39.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.17 ms. Allocated memory is still 207.1 MB. Free memory was 175.9 MB in the beginning and 170.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1569.51 ms. Allocated memory was 207.1 MB in the beginning and 240.6 MB in the end (delta: 33.6 MB). Free memory was 170.8 MB in the beginning and 185.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9986.50 ms. Allocated memory was 240.6 MB in the beginning and 383.3 MB in the end (delta: 142.6 MB). Free memory was 185.1 MB in the beginning and 247.6 MB in the end (delta: -62.5 MB). Peak memory consumption was 238.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a20)) || !(15 <= \old(a8))) || (15 <= a8 && 1 == a21)) || ((a16 <= 5 && 1 == a21) && 1 == a20)) || ((a8 <= 13 && 1 == a21) && 1 == a20)) || !(\old(a16) <= 5)) || ((a17 <= 0 && a16 <= 5) && 1 == a21)) || (a8 <= 13 && a16 <= 5)) || ((a8 <= 13 && a17 <= 0) && 1 == a20)) || !(5 <= \old(a16))) || !(1 == \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.6s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 601 SDtfs, 1062 SDslu, 136 SDs, 0 SdLazy, 2860 SolverSat, 571 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1193 GetRequests, 1175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1797occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 461 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 75 PreInvPairs, 119 NumberOfFragments, 442 HoareAnnotationTreeSize, 75 FomulaSimplifications, 2372 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 819 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1018 NumberOfCodeBlocks, 1018 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1185 ConstructedInterpolants, 0 QuantifiedInterpolants, 413079 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2707 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 236/240 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...