/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 BIGGEST_EQUIVALENCE_CLASS --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/Problem10_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:26:53,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:26:53,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:26:53,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:26:53,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:26:53,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:26:53,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:26:53,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:26:53,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:26:53,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:26:53,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:26:53,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:26:53,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:26:53,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:26:53,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:26:53,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:26:53,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:26:53,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:26:53,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:26:53,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:26:53,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:26:53,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:26:53,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:26:53,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:26:53,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:26:53,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:26:53,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:26:53,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:26:53,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:26:53,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:26:53,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:26:53,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:26:53,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:26:53,957 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:26:53,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:26:53,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:26:53,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:26:53,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:26:53,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:26:53,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:26:53,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:26:53,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:26:53,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:26:53,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:26:53,959 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:26:53,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:26:53,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:26:53,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:26:53,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:26:53,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:26:53,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:26:53,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:26:53,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:26:53,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:26:53,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:26:53,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:53,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:26:53,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:26:53,962 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 -> BIGGEST_EQUIVALENCE_CLASS 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 [2020-07-21 01:26:54,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:26:54,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:26:54,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:26:54,307 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:26:54,307 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:26:54,308 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-21 01:26:54,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21af6ecf5/5d11a2e1c2704877895c9aa9f2d7e222/FLAG2211175e4 [2020-07-21 01:26:54,922 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:26:54,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-21 01:26:54,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21af6ecf5/5d11a2e1c2704877895c9aa9f2d7e222/FLAG2211175e4 [2020-07-21 01:26:55,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21af6ecf5/5d11a2e1c2704877895c9aa9f2d7e222 [2020-07-21 01:26:55,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:26:55,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:26:55,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:26:55,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:26:55,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:26:55,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:55" (1/1) ... [2020-07-21 01:26:55,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce438f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55, skipping insertion in model container [2020-07-21 01:26:55,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:55" (1/1) ... [2020-07-21 01:26:55,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:26:55,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:26:55,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:26:55,686 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:26:55,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:26:55,961 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:26:55,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55 WrapperNode [2020-07-21 01:26:55,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:26:55,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:26:55,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:26:55,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:26:55,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55" (1/1) ... [2020-07-21 01:26:55,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55" (1/1) ... [2020-07-21 01:26:55,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55" (1/1) ... [2020-07-21 01:26:55,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55" (1/1) ... [2020-07-21 01:26:56,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55" (1/1) ... [2020-07-21 01:26:56,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55" (1/1) ... [2020-07-21 01:26:56,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55" (1/1) ... [2020-07-21 01:26:56,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:26:56,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:26:56,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:26:56,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:26:56,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:26:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:26:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:26:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:26:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:26:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:26:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:26:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:26:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:26:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:26:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:26:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:26:57,387 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:26:57,387 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:26:57,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:57 BoogieIcfgContainer [2020-07-21 01:26:57,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:26:57,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:26:57,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:26:57,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:26:57,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:26:55" (1/3) ... [2020-07-21 01:26:57,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574487cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:57, skipping insertion in model container [2020-07-21 01:26:57,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:55" (2/3) ... [2020-07-21 01:26:57,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574487cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:57, skipping insertion in model container [2020-07-21 01:26:57,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:57" (3/3) ... [2020-07-21 01:26:57,403 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-07-21 01:26:57,413 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:26:57,421 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:26:57,436 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:26:57,463 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:26:57,463 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:26:57,463 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:26:57,463 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:26:57,464 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:26:57,464 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:26:57,464 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:26:57,464 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:26:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 01:26:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 01:26:57,497 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:57,498 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] [2020-07-21 01:26:57,499 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:57,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:57,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1918215546, now seen corresponding path program 1 times [2020-07-21 01:26:57,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:57,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678275616] [2020-07-21 01:26:57,515 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 [2020-07-21 01:26:57,663 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:57,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:57,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:26:57,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:26:57,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:26:57,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678275616] [2020-07-21 01:26:57,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:26:57,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:26:57,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016034288] [2020-07-21 01:26:57,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:26:57,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:57,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:26:57,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:57,784 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 01:26:58,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:26:58,722 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 01:26:58,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:26:58,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-21 01:26:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:26:58,740 INFO L225 Difference]: With dead ends: 571 [2020-07-21 01:26:58,740 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 01:26:58,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:26:58,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 01:26:58,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 01:26:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 01:26:58,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 01:26:58,818 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 67 [2020-07-21 01:26:58,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:26:58,819 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 01:26:58,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:26:58,819 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 01:26:58,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 01:26:58,826 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:26:58,826 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:26:59,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:26:59,042 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:26:59,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:26:59,043 INFO L82 PathProgramCache]: Analyzing trace with hash -649832990, now seen corresponding path program 1 times [2020-07-21 01:26:59,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:26:59,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704501067] [2020-07-21 01:26:59,044 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 [2020-07-21 01:26:59,142 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:26:59,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:26:59,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:26:59,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:26:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:26:59,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:26:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:26:59,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704501067] [2020-07-21 01:26:59,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:26:59,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-07-21 01:26:59,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83862742] [2020-07-21 01:26:59,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:26:59,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:26:59,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:26:59,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:26:59,325 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 01:27:00,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:00,115 INFO L93 Difference]: Finished difference Result 586 states and 784 transitions. [2020-07-21 01:27:00,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:27:00,116 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-07-21 01:27:00,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:00,126 INFO L225 Difference]: With dead ends: 586 [2020-07-21 01:27:00,126 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 01:27:00,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:00,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 01:27:00,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 01:27:00,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 01:27:00,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 782 transitions. [2020-07-21 01:27:00,201 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 782 transitions. Word has length 137 [2020-07-21 01:27:00,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:00,202 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 782 transitions. [2020-07-21 01:27:00,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:27:00,203 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 782 transitions. [2020-07-21 01:27:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-07-21 01:27:00,211 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:00,214 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:27:00,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:00,416 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:00,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:00,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1807493347, now seen corresponding path program 1 times [2020-07-21 01:27:00,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:00,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592166216] [2020-07-21 01:27:00,418 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 [2020-07-21 01:27:00,535 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:27:00,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:00,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:27:00,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:00,585 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:27:00,586 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:00,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:00,782 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:00,783 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:00,786 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:27:00,786 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:00,950 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:00,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592166216] [2020-07-21 01:27:00,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:27:00,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:27:00,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927851308] [2020-07-21 01:27:00,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:27:00,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:00,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:27:00,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:00,954 INFO L87 Difference]: Start difference. First operand 584 states and 782 transitions. Second operand 6 states. [2020-07-21 01:27:01,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:01,986 INFO L93 Difference]: Finished difference Result 1323 states and 1815 transitions. [2020-07-21 01:27:01,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:27:01,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 256 [2020-07-21 01:27:01,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:01,994 INFO L225 Difference]: With dead ends: 1323 [2020-07-21 01:27:01,994 INFO L226 Difference]: Without dead ends: 745 [2020-07-21 01:27:01,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 506 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:27:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-07-21 01:27:02,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 739. [2020-07-21 01:27:02,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-07-21 01:27:02,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1006 transitions. [2020-07-21 01:27:02,028 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1006 transitions. Word has length 256 [2020-07-21 01:27:02,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:02,029 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1006 transitions. [2020-07-21 01:27:02,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:27:02,029 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1006 transitions. [2020-07-21 01:27:02,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-07-21 01:27:02,035 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:02,036 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:27:02,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:02,249 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:02,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:02,250 INFO L82 PathProgramCache]: Analyzing trace with hash -474442487, now seen corresponding path program 1 times [2020-07-21 01:27:02,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:02,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904109376] [2020-07-21 01:27:02,251 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 [2020-07-21 01:27:02,366 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:27:02,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:02,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:27:02,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:02,488 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:02,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:02,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904109376] [2020-07-21 01:27:02,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:27:02,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:27:02,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203037962] [2020-07-21 01:27:02,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:27:02,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:02,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:27:02,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:02,632 INFO L87 Difference]: Start difference. First operand 739 states and 1006 transitions. Second operand 6 states. [2020-07-21 01:27:03,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:03,804 INFO L93 Difference]: Finished difference Result 1643 states and 2277 transitions. [2020-07-21 01:27:03,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:27:03,805 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 262 [2020-07-21 01:27:03,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:03,811 INFO L225 Difference]: With dead ends: 1643 [2020-07-21 01:27:03,811 INFO L226 Difference]: Without dead ends: 910 [2020-07-21 01:27:03,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 520 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:27:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2020-07-21 01:27:03,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 747. [2020-07-21 01:27:03,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2020-07-21 01:27:03,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 907 transitions. [2020-07-21 01:27:03,842 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 907 transitions. Word has length 262 [2020-07-21 01:27:03,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:03,843 INFO L479 AbstractCegarLoop]: Abstraction has 747 states and 907 transitions. [2020-07-21 01:27:03,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:27:03,843 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 907 transitions. [2020-07-21 01:27:03,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-21 01:27:03,847 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:03,848 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:27:04,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:04,062 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:04,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:04,063 INFO L82 PathProgramCache]: Analyzing trace with hash 562765338, now seen corresponding path program 1 times [2020-07-21 01:27:04,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:04,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297318202] [2020-07-21 01:27:04,064 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 [2020-07-21 01:27:04,161 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:27:04,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:04,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 01:27:04,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 01:27:04,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:27:04,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297318202] [2020-07-21 01:27:04,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:27:04,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:27:04,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937863688] [2020-07-21 01:27:04,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:27:04,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:04,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:27:04,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:27:04,269 INFO L87 Difference]: Start difference. First operand 747 states and 907 transitions. Second operand 5 states. [2020-07-21 01:27:05,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:05,199 INFO L93 Difference]: Finished difference Result 1655 states and 2009 transitions. [2020-07-21 01:27:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:27:05,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 263 [2020-07-21 01:27:05,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:05,205 INFO L225 Difference]: With dead ends: 1655 [2020-07-21 01:27:05,206 INFO L226 Difference]: Without dead ends: 914 [2020-07-21 01:27:05,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:27:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2020-07-21 01:27:05,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 898. [2020-07-21 01:27:05,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-07-21 01:27:05,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1074 transitions. [2020-07-21 01:27:05,235 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1074 transitions. Word has length 263 [2020-07-21 01:27:05,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:05,235 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1074 transitions. [2020-07-21 01:27:05,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:27:05,235 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1074 transitions. [2020-07-21 01:27:05,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-21 01:27:05,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:05,240 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:27:05,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:05,454 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:05,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:05,455 INFO L82 PathProgramCache]: Analyzing trace with hash 854527778, now seen corresponding path program 1 times [2020-07-21 01:27:05,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:05,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863218634] [2020-07-21 01:27:05,456 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 [2020-07-21 01:27:05,546 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:27:05,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:05,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-21 01:27:05,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:05,587 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:05,589 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:17,981 WARN L193 SmtUtils]: Spent 12.36 s on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 01:27:18,015 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:27:18,195 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 01:27:18,196 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:27:18,197 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:27:18,198 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:27:18,599 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 158 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:18,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:18,705 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:27:18,984 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:18,985 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:18,986 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:27:18,987 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:27:18,989 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:18,990 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:18,992 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:18,993 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:27:24,330 WARN L193 SmtUtils]: Spent 5.28 s on a formula simplification. DAG size of input: 37 DAG size of output: 20 [2020-07-21 01:27:24,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863218634] [2020-07-21 01:27:24,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:27:24,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 01:27:24,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701040210] [2020-07-21 01:27:24,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 01:27:24,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:24,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 01:27:24,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:27:24,334 INFO L87 Difference]: Start difference. First operand 898 states and 1074 transitions. Second operand 9 states. [2020-07-21 01:27:50,269 WARN L193 SmtUtils]: Spent 24.33 s on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-07-21 01:27:51,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:51,204 INFO L93 Difference]: Finished difference Result 2335 states and 2950 transitions. [2020-07-21 01:27:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 01:27:51,209 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 271 [2020-07-21 01:27:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:51,218 INFO L225 Difference]: With dead ends: 2335 [2020-07-21 01:27:51,218 INFO L226 Difference]: Without dead ends: 1559 [2020-07-21 01:27:51,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 445 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 42.8s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-07-21 01:27:51,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-07-21 01:27:51,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1486. [2020-07-21 01:27:51,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1486 states. [2020-07-21 01:27:51,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1821 transitions. [2020-07-21 01:27:51,275 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1821 transitions. Word has length 271 [2020-07-21 01:27:51,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:51,276 INFO L479 AbstractCegarLoop]: Abstraction has 1486 states and 1821 transitions. [2020-07-21 01:27:51,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 01:27:51,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1821 transitions. [2020-07-21 01:27:51,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-07-21 01:27:51,282 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:51,282 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:27:51,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:51,497 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:51,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:51,497 INFO L82 PathProgramCache]: Analyzing trace with hash -550746410, now seen corresponding path program 1 times [2020-07-21 01:27:51,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:51,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860706706] [2020-07-21 01:27:51,498 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 [2020-07-21 01:27:51,592 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:27:51,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:51,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 01:27:51,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 01:27:51,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:27:51,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860706706] [2020-07-21 01:27:51,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:27:51,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:27:51,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427781815] [2020-07-21 01:27:51,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:27:51,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:51,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:27:51,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:27:51,681 INFO L87 Difference]: Start difference. First operand 1486 states and 1821 transitions. Second operand 5 states. [2020-07-21 01:27:52,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:52,683 INFO L93 Difference]: Finished difference Result 4033 states and 5178 transitions. [2020-07-21 01:27:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:27:52,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-07-21 01:27:52,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:52,699 INFO L225 Difference]: With dead ends: 4033 [2020-07-21 01:27:52,699 INFO L226 Difference]: Without dead ends: 2696 [2020-07-21 01:27:52,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:27:52,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2020-07-21 01:27:52,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2080. [2020-07-21 01:27:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2020-07-21 01:27:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2552 transitions. [2020-07-21 01:27:52,774 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2552 transitions. Word has length 281 [2020-07-21 01:27:52,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:52,775 INFO L479 AbstractCegarLoop]: Abstraction has 2080 states and 2552 transitions. [2020-07-21 01:27:52,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:27:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2552 transitions. [2020-07-21 01:27:52,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-07-21 01:27:52,786 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:52,786 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:27:53,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:53,001 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:53,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:53,002 INFO L82 PathProgramCache]: Analyzing trace with hash 348873925, now seen corresponding path program 1 times [2020-07-21 01:27:53,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:53,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428564636] [2020-07-21 01:27:53,003 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:53,136 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:27:53,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:53,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 01:27:53,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:53,165 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:53,166 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:53,167 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:53,168 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:53,169 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:53,170 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:53,171 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:53,173 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:53,173 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:53,175 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:53,177 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:53,177 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:53,178 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 01:27:53,180 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:53,180 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:53,182 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:53,183 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:53,184 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:53,186 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:53,187 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:53,188 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:53,190 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:53,190 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:53,191 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:53,192 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:53,193 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 01:28:05,597 WARN L193 SmtUtils]: Spent 12.33 s on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2020-07-21 01:28:05,626 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:28:05,712 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:28:05,712 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:05,713 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:05,745 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:05,746 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 01:28:05,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:28:06,037 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:06,038 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:06,039 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:06,040 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:06,061 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:06,062 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:06,159 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:06,162 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:06,163 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:06,164 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:06,165 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:06,165 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:06,166 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:06,167 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:06,168 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:06,168 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:06,170 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:06,171 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:06,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428564636] [2020-07-21 01:28:06,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:28:06,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 01:28:06,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815773110] [2020-07-21 01:28:06,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:28:06,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:28:06,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:28:06,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:28:06,258 INFO L87 Difference]: Start difference. First operand 2080 states and 2552 transitions. Second operand 8 states. [2020-07-21 01:28:21,513 WARN L193 SmtUtils]: Spent 12.39 s on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-07-21 01:28:22,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:28:22,621 INFO L93 Difference]: Finished difference Result 4621 states and 5818 transitions. [2020-07-21 01:28:22,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 01:28:22,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 378 [2020-07-21 01:28:22,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:28:22,633 INFO L225 Difference]: With dead ends: 4621 [2020-07-21 01:28:22,634 INFO L226 Difference]: Without dead ends: 2690 [2020-07-21 01:28:22,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 625 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-21 01:28:22,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2020-07-21 01:28:22,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2676. [2020-07-21 01:28:22,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2676 states. [2020-07-21 01:28:22,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 3236 transitions. [2020-07-21 01:28:22,707 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 3236 transitions. Word has length 378 [2020-07-21 01:28:22,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:28:22,708 INFO L479 AbstractCegarLoop]: Abstraction has 2676 states and 3236 transitions. [2020-07-21 01:28:22,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:28:22,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 3236 transitions. [2020-07-21 01:28:22,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2020-07-21 01:28:22,718 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:28:22,719 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:28:22,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:28:22,933 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:28:22,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:28:22,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1039577823, now seen corresponding path program 1 times [2020-07-21 01:28:22,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:28:22,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312703320] [2020-07-21 01:28:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:28:23,137 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:28:23,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:28:23,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:28:23,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:28:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-21 01:28:23,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:28:23,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312703320] [2020-07-21 01:28:23,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:28:23,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:28:23,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969367172] [2020-07-21 01:28:23,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:28:23,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:28:23,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:28:23,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:28:23,255 INFO L87 Difference]: Start difference. First operand 2676 states and 3236 transitions. Second operand 3 states. [2020-07-21 01:28:23,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:28:23,968 INFO L93 Difference]: Finished difference Result 5781 states and 7079 transitions. [2020-07-21 01:28:23,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:28:23,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 392 [2020-07-21 01:28:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:28:23,982 INFO L225 Difference]: With dead ends: 5781 [2020-07-21 01:28:23,982 INFO L226 Difference]: Without dead ends: 3254 [2020-07-21 01:28:23,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:28:24,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2020-07-21 01:28:24,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2964. [2020-07-21 01:28:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2964 states. [2020-07-21 01:28:24,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3575 transitions. [2020-07-21 01:28:24,072 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3575 transitions. Word has length 392 [2020-07-21 01:28:24,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:28:24,074 INFO L479 AbstractCegarLoop]: Abstraction has 2964 states and 3575 transitions. [2020-07-21 01:28:24,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:28:24,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3575 transitions. [2020-07-21 01:28:24,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-07-21 01:28:24,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:28:24,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:28:24,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:28:24,301 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:28:24,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:28:24,301 INFO L82 PathProgramCache]: Analyzing trace with hash -301430794, now seen corresponding path program 1 times [2020-07-21 01:28:24,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:28:24,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129573498] [2020-07-21 01:28:24,302 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:28:24,476 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:28:24,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:28:24,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 01:28:24,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:28:24,529 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:24,530 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:28:24,530 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:28:24,531 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:28:24,532 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:28:24,533 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:28:24,534 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:28:24,535 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:28:36,975 WARN L193 SmtUtils]: Spent 12.37 s on a formula simplification. DAG size of input: 69 DAG size of output: 34 [2020-07-21 01:28:37,007 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:45,129 WARN L193 SmtUtils]: Spent 6.06 s on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 01:28:51,390 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:28:51,391 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:51,391 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:51,430 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:51,431 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:51,432 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:51,442 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:28:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 185 proven. 197 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 01:28:51,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:28:51,771 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:51,772 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:51,773 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:51,773 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:51,836 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:51,837 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:52,046 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,047 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,048 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,049 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,051 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,052 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,053 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,054 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,055 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,056 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:52,056 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:52,057 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:52,057 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:52,058 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:52,059 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:52,059 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:52,062 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:52,063 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:52,063 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:52,064 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:52,065 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:52,067 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:52,067 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:52,067 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:28:52,069 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:52,069 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:52,070 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:52,070 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:28:52,071 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:52,072 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:28:52,112 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,112 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,113 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,113 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,114 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,115 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,116 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,116 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:52,471 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 377 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 01:28:52,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129573498] [2020-07-21 01:28:52,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:28:52,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-21 01:28:52,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320445549] [2020-07-21 01:28:52,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 01:28:52,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:28:52,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 01:28:52,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2020-07-21 01:28:52,474 INFO L87 Difference]: Start difference. First operand 2964 states and 3575 transitions. Second operand 12 states. [2020-07-21 01:29:09,100 WARN L193 SmtUtils]: Spent 6.11 s on a formula simplification that was a NOOP. DAG size: 38 [2020-07-21 01:30:07,060 WARN L193 SmtUtils]: Spent 7.50 s on a formula simplification that was a NOOP. DAG size: 43 [2020-07-21 01:31:18,156 WARN L193 SmtUtils]: Spent 12.53 s on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-07-21 01:31:18,375 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-07-21 01:31:45,182 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2020-07-21 01:32:06,435 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 01:32:22,186 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2020-07-21 01:33:59,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:59,435 INFO L93 Difference]: Finished difference Result 7585 states and 9269 transitions. [2020-07-21 01:33:59,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-07-21 01:33:59,443 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 397 [2020-07-21 01:33:59,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:59,464 INFO L225 Difference]: With dead ends: 7585 [2020-07-21 01:33:59,465 INFO L226 Difference]: Without dead ends: 4770 [2020-07-21 01:33:59,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 808 SyntacticMatches, 7 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 57.4s TimeCoverageRelationStatistics Valid=415, Invalid=1563, Unknown=2, NotChecked=0, Total=1980 [2020-07-21 01:33:59,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4770 states. [2020-07-21 01:33:59,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4770 to 4756. [2020-07-21 01:33:59,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4756 states. [2020-07-21 01:33:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4756 states to 4756 states and 5647 transitions. [2020-07-21 01:33:59,621 INFO L78 Accepts]: Start accepts. Automaton has 4756 states and 5647 transitions. Word has length 397 [2020-07-21 01:33:59,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:59,622 INFO L479 AbstractCegarLoop]: Abstraction has 4756 states and 5647 transitions. [2020-07-21 01:33:59,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 01:33:59,622 INFO L276 IsEmpty]: Start isEmpty. Operand 4756 states and 5647 transitions. [2020-07-21 01:33:59,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-07-21 01:33:59,635 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:59,635 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:33:59,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:59,851 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:59,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:59,852 INFO L82 PathProgramCache]: Analyzing trace with hash 252720706, now seen corresponding path program 1 times [2020-07-21 01:33:59,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:59,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755128099] [2020-07-21 01:33:59,853 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:00,248 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:34:00,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:00,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:34:00,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:00,264 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:34:00,265 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,265 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 01:34:00,266 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:34:00,266 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:34:00,267 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:34:00,268 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,268 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:34:00,269 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:34:00,269 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,270 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,270 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:34:00,271 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:34:00,272 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:34:00,272 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:34:00,273 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:34:00,274 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,274 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,274 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,275 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,276 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,276 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,277 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:34:00,892 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 26 [2020-07-21 01:34:01,222 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-07-21 01:34:01,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:34:01,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755128099] [2020-07-21 01:34:01,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:34:01,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:34:01,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800560236] [2020-07-21 01:34:01,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:34:01,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:01,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:34:01,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:01,224 INFO L87 Difference]: Start difference. First operand 4756 states and 5647 transitions. Second operand 3 states. [2020-07-21 01:34:07,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:07,201 INFO L93 Difference]: Finished difference Result 6073 states and 7296 transitions. [2020-07-21 01:34:07,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:34:07,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 407 [2020-07-21 01:34:07,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:07,210 INFO L225 Difference]: With dead ends: 6073 [2020-07-21 01:34:07,211 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:34:07,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:07,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:34:07,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:34:07,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:34:07,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:34:07,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 407 [2020-07-21 01:34:07,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:07,224 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:34:07,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:34:07,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:34:07,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:34:07,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:07,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:34:08,512 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 290 [2020-07-21 01:34:08,801 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 290 [2020-07-21 01:34:08,950 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 15 [2020-07-21 01:34:09,324 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 28 [2020-07-21 01:34:15,680 WARN L193 SmtUtils]: Spent 6.33 s on a formula simplification. DAG size of input: 317 DAG size of output: 79 [2020-07-21 01:34:15,824 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 11 [2020-07-21 01:34:37,613 WARN L193 SmtUtils]: Spent 21.79 s on a formula simplification. DAG size of input: 312 DAG size of output: 86 [2020-07-21 01:34:55,574 WARN L193 SmtUtils]: Spent 17.96 s on a formula simplification. DAG size of input: 312 DAG size of output: 86 [2020-07-21 01:34:55,581 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:34:55,581 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 01:34:55,581 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:34:55,581 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 01:34:55,581 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,581 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,581 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,582 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,582 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,582 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,582 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 01:34:55,582 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 01:34:55,582 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 01:34:55,582 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 01:34:55,583 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 01:34:55,583 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 01:34:55,583 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 01:34:55,583 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 01:34:55,583 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 01:34:55,583 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 01:34:55,584 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 01:34:55,584 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,584 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,584 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,584 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,584 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 01:34:55,585 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 01:34:55,586 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:34:55,587 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 01:34:55,587 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 01:34:55,587 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 01:34:55,587 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 01:34:55,587 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 01:34:55,587 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 01:34:55,587 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 01:34:55,587 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 01:34:55,587 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,588 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,588 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,588 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,588 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,588 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 01:34:55,588 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 01:34:55,588 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 01:34:55,588 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 01:34:55,588 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 01:34:55,589 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 01:34:55,589 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 01:34:55,589 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 01:34:55,589 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 01:34:55,589 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 01:34:55,589 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 01:34:55,589 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 01:34:55,589 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 01:34:55,590 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 01:34:55,591 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 01:34:55,591 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 01:34:55,591 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 01:34:55,591 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 01:34:55,591 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,591 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,591 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,591 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,591 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 01:34:55,592 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 01:34:55,593 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 01:34:55,593 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 01:34:55,593 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 01:34:55,593 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 01:34:55,593 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 01:34:55,593 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,593 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,594 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,594 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,594 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 01:34:55,594 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,594 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,594 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 01:34:55,594 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 01:34:55,594 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 01:34:55,594 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:34:55,595 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 01:34:55,595 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 01:34:55,595 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 01:34:55,595 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 01:34:55,595 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 01:34:55,595 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 01:34:55,595 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 01:34:55,595 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 01:34:55,596 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 01:34:55,597 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 01:34:55,597 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 01:34:55,597 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 01:34:55,597 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 01:34:55,597 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 01:34:55,597 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 01:34:55,597 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 01:34:55,597 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 01:34:55,598 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse3 (not (< 6 |old(~a19~0)|))) (.cse4 (and (not (< |old(~a10~0)| 3)) (not (< |old(~a1~0)| 219)))) (.cse0 (not (= 0 ~a12~0))) (.cse1 (not (= 14 ~a4~0))) (.cse2 (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (<= |old(~a10~0)| 0)) .cse0 .cse1 .cse2) (or (not (<= 23 (div (+ |old(~a1~0)| (- 517989)) 5))) .cse3 .cse0 .cse1 .cse2) (or .cse4 .cse3 .cse0 .cse1 .cse2) (or .cse4 .cse0 (forall ((v_~a1~0_451 Int)) (let ((.cse6 (mod v_~a1~0_451 25))) (let ((.cse5 (* 5 .cse6)) (.cse7 (mod (+ (* .cse6 5) 10) 25))) (or (not (<= 0 (+ .cse5 60))) (= 0 .cse6) (not (< .cse5 65)) (not (< v_~a1~0_451 0)) (not (<= .cse7 (+ |old(~a1~0)| 12))) (= .cse7 0))))) .cse1 (not (<= 2 |old(~a10~0)|)) .cse2) (or (not (<= 4 |old(~a10~0)|)) .cse0 .cse1 .cse2))) [2020-07-21 01:34:55,598 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 01:34:55,598 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 01:34:55,598 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 01:34:55,598 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,598 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,598 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,599 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,599 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,599 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,599 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 01:34:55,599 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 01:34:55,599 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 01:34:55,599 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 01:34:55,599 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 01:34:55,600 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 01:34:55,600 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 01:34:55,600 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 01:34:55,600 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 01:34:55,600 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 01:34:55,600 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 01:34:55,600 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 01:34:55,601 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 01:34:55,601 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,601 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,601 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,601 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,601 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,601 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,601 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 01:34:55,601 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 01:34:55,602 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 01:34:55,603 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,603 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,603 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,603 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,603 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,603 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:55,603 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 01:34:55,603 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 01:34:55,603 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 01:34:55,604 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:34:55,605 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (= 0 ~a12~0) (= 9 ~a19~0) (= 23 ~a1~0)) [2020-07-21 01:34:55,605 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:34:55,605 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:34:55,605 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= 9 ~a19~0) (= ~a1~0 |old(~a1~0)|)) (not (= 14 ~a4~0)) (not (= 9 |old(~a19~0)|))) [2020-07-21 01:34:55,605 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:34:55,605 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse3 (< 6 ~a19~0))) (or (<= ~a10~0 0) (and (exists ((v_~a1~0_451 Int)) (let ((.cse1 (mod v_~a1~0_451 25))) (let ((.cse0 (* 5 .cse1)) (.cse2 (mod (+ (* .cse1 5) 10) 25))) (and (< .cse0 65) (not (= 0 .cse1)) (<= 0 (+ .cse0 60)) (< v_~a1~0_451 0) (not (= .cse2 0)) (<= .cse2 (+ ~a1~0 12)))))) (or (< ~a10~0 3) (< ~a1~0 219)) (<= 2 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (and .cse3 (exists ((v_~a1~0_424 Int)) (let ((.cse4 (mod v_~a1~0_424 25))) (and (< .cse4 42592) (<= 0 v_~a1~0_424) (not (= 0 (mod (+ .cse4 3) 5))) (<= |old(~a1~0)| v_~a1~0_424) (<= ~a1~0 (+ (div (+ .cse4 (- 42592)) 5) 8518)))))) (not (= 14 ~a4~0)) (and (<= ~a10~0 2) .cse3) (and (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse3) (<= 4 ~a10~0))) [2020-07-21 01:34:55,606 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 01:34:55,606 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 01:34:55,606 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse3 (< 6 ~a19~0))) (or (<= ~a10~0 0) (and (exists ((v_~a1~0_451 Int)) (let ((.cse1 (mod v_~a1~0_451 25))) (let ((.cse0 (* 5 .cse1)) (.cse2 (mod (+ (* .cse1 5) 10) 25))) (and (< .cse0 65) (not (= 0 .cse1)) (<= 0 (+ .cse0 60)) (< v_~a1~0_451 0) (not (= .cse2 0)) (<= .cse2 (+ ~a1~0 12)))))) (or (< ~a10~0 3) (< ~a1~0 219)) (<= 2 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (and .cse3 (exists ((v_~a1~0_424 Int)) (let ((.cse4 (mod v_~a1~0_424 25))) (and (< .cse4 42592) (<= 0 v_~a1~0_424) (not (= 0 (mod (+ .cse4 3) 5))) (<= |old(~a1~0)| v_~a1~0_424) (<= ~a1~0 (+ (div (+ .cse4 (- 42592)) 5) 8518)))))) (not (= 14 ~a4~0)) (and (<= ~a10~0 2) .cse3) (and (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse3) (<= 4 ~a10~0))) [2020-07-21 01:34:55,606 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:34:55,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:34:55 BoogieIcfgContainer [2020-07-21 01:34:55,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:34:55,636 INFO L168 Benchmark]: Toolchain (without parser) took 480422.91 ms. Allocated memory was 139.5 MB in the beginning and 513.8 MB in the end (delta: 374.3 MB). Free memory was 102.5 MB in the beginning and 111.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 445.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:55,637 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 01:34:55,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.76 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 102.1 MB in the beginning and 173.2 MB in the end (delta: -71.1 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:55,638 INFO L168 Benchmark]: Boogie Preprocessor took 120.43 ms. Allocated memory is still 206.0 MB. Free memory was 173.2 MB in the beginning and 168.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:55,639 INFO L168 Benchmark]: RCFGBuilder took 1309.76 ms. Allocated memory was 206.0 MB in the beginning and 237.5 MB in the end (delta: 31.5 MB). Free memory was 168.3 MB in the beginning and 180.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:55,640 INFO L168 Benchmark]: TraceAbstraction took 478238.99 ms. Allocated memory was 237.5 MB in the beginning and 513.8 MB in the end (delta: 276.3 MB). Free memory was 180.7 MB in the beginning and 111.0 MB in the end (delta: 69.7 MB). Peak memory consumption was 425.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:55,644 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.76 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 102.1 MB in the beginning and 173.2 MB in the end (delta: -71.1 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.43 ms. Allocated memory is still 206.0 MB. Free memory was 173.2 MB in the beginning and 168.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1309.76 ms. Allocated memory was 206.0 MB in the beginning and 237.5 MB in the end (delta: 31.5 MB). Free memory was 168.3 MB in the beginning and 180.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 478238.99 ms. Allocated memory was 237.5 MB in the beginning and 513.8 MB in the end (delta: 276.3 MB). Free memory was 180.7 MB in the beginning and 111.0 MB in the end (delta: 69.7 MB). Peak memory consumption was 425.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant [2020-07-21 01:34:55,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 01:34:55,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 01:34:55,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] Derived loop invariant: (((((((((a10 <= 0 || (((\exists v_~a1~0_451 : int :: ((((5 * (v_~a1~0_451 % 25) < 65 && !(0 == v_~a1~0_451 % 25)) && 0 <= 5 * (v_~a1~0_451 % 25) + 60) && v_~a1~0_451 < 0) && !((v_~a1~0_451 % 25 * 5 + 10) % 25 == 0)) && (v_~a1~0_451 % 25 * 5 + 10) % 25 <= a1 + 12) && (a10 < 3 || a1 < 219)) && 2 <= a10)) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(0 == a12)) || !(9 == \old(a19))) || (6 < a19 && (\exists v_~a1~0_424 : int :: (((v_~a1~0_424 % 25 < 42592 && 0 <= v_~a1~0_424) && !(0 == (v_~a1~0_424 % 25 + 3) % 5)) && \old(a1) <= v_~a1~0_424) && a1 <= (v_~a1~0_424 % 25 + -42592) / 5 + 8518))) || !(14 == a4)) || (a10 <= 2 && 6 < a19)) || (23 <= (a1 + -517989) / 5 && 6 < a19)) || 4 <= a10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 429.9s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 362.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 48.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 604 SDtfs, 4178 SDslu, 560 SDs, 0 SdLazy, 12637 SolverSat, 1999 SolverUnsat, 122 SolverUnknown, 0 SolverNotchecked, 280.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4700 GetRequests, 4569 SyntacticMatches, 14 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 126.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4756occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 1192 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 131 PreInvPairs, 225 NumberOfFragments, 567 HoareAnnotationTreeSize, 131 FomulaSimplifications, 13834 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 32354 FormulaSimplificationTreeSizeReductionInter, 46.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 62.1s InterpolantComputationTime, 3111 NumberOfCodeBlocks, 2485 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 4148 ConstructedInterpolants, 81 QuantifiedInterpolants, 6754542 SizeOfPredicates, 21 NumberOfNonLiveVariables, 4185 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 3477/3784 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...