/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:26:53,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:26:53,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:26:53,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:26:53,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:26:53,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:26:53,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:26:53,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:26:53,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:26:53,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:26:53,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:26:53,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:26:53,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:26:53,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:26:53,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:26:53,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:26:53,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:26:53,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:26:53,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:26:53,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:26:53,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:26:53,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:26:53,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:26:53,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:26:53,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:26:53,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:26:53,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:26:53,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:26:53,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:26:53,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:26:53,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:26:53,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:26:53,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:26:53,106 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:26:53,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:26:53,107 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:26:53,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:26:53,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:26:53,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:26:53,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:26:53,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:26:53,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:26:53,109 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:26:53,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:26:53,109 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:26:53,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:26:53,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:26:53,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:26:53,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:26:53,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:26:53,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:26:53,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:26:53,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:26:53,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:26:53,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:26:53,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:26:53,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:26:53,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:26:53,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:26:53,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:26:53,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:26:53,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:26:53,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:26:53,454 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:26:53,455 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-20 17:26:53,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/befe97e9b/8fa78e4422ac4ad791a7bd3a52db5e1e/FLAG7237d95c1 [2020-07-20 17:26:54,147 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:26:54,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-20 17:26:54,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/befe97e9b/8fa78e4422ac4ad791a7bd3a52db5e1e/FLAG7237d95c1 [2020-07-20 17:26:54,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/befe97e9b/8fa78e4422ac4ad791a7bd3a52db5e1e [2020-07-20 17:26:54,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:26:54,405 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:26:54,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:26:54,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:26:54,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:26:54,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:26:54" (1/1) ... [2020-07-20 17:26:54,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ac54e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:54, skipping insertion in model container [2020-07-20 17:26:54,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:26:54" (1/1) ... [2020-07-20 17:26:54,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:26:54,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:26:54,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:26:54,894 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:26:55,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:26:55,112 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:26:55,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55 WrapperNode [2020-07-20 17:26:55,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:26:55,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:26:55,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:26:55,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:26:55,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55" (1/1) ... [2020-07-20 17:26:55,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55" (1/1) ... [2020-07-20 17:26:55,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55" (1/1) ... [2020-07-20 17:26:55,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55" (1/1) ... [2020-07-20 17:26:55,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55" (1/1) ... [2020-07-20 17:26:55,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55" (1/1) ... [2020-07-20 17:26:55,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55" (1/1) ... [2020-07-20 17:26:55,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:26:55,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:26:55,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:26:55,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:26:55,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55" (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 [2020-07-20 17:26:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:26:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:26:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:26:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:26:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:26:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:26:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:26:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:26:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:26:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:26:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:26:56,621 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:26:56,622 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:26:56,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:26:56 BoogieIcfgContainer [2020-07-20 17:26:56,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:26:56,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:26:56,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:26:56,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:26:56,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:26:54" (1/3) ... [2020-07-20 17:26:56,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c575b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:26:56, skipping insertion in model container [2020-07-20 17:26:56,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:26:55" (2/3) ... [2020-07-20 17:26:56,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c575b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:26:56, skipping insertion in model container [2020-07-20 17:26:56,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:26:56" (3/3) ... [2020-07-20 17:26:56,637 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-07-20 17:26:56,649 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:26:56,659 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:26:56,674 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:26:56,702 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:26:56,703 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:26:56,703 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:26:56,703 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:26:56,703 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:26:56,704 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:26:56,704 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:26:56,704 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:26:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 17:26:56,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-20 17:26:56,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:26:56,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:26:56,744 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:26:56,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:26:56,750 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-07-20 17:26:56,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:26:56,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906983351] [2020-07-20 17:26:56,761 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:26:56,971 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:26:56,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:26:56,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:26:56,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:26:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:26:57,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:26:57,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906983351] [2020-07-20 17:26:57,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:26:57,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:26:57,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922183932] [2020-07-20 17:26:57,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:26:57,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:26:57,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:26:57,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:26:57,132 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 17:26:58,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:26:58,118 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 17:26:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:26:58,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-20 17:26:58,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:26:58,140 INFO L225 Difference]: With dead ends: 615 [2020-07-20 17:26:58,140 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 17:26:58,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:26:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 17:26:58,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 17:26:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 17:26:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 17:26:58,226 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 98 [2020-07-20 17:26:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:26:58,227 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 17:26:58,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:26:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 17:26:58,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-20 17:26:58,237 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:26:58,237 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:26:58,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:26:58,438 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:26:58,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:26:58,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-07-20 17:26:58,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:26:58,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444483477] [2020-07-20 17:26:58,440 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:26:58,549 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:26:58,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:26:58,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:26:58,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:26:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:26:58,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:26:58,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444483477] [2020-07-20 17:26:58,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:26:58,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:26:58,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734607700] [2020-07-20 17:26:58,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:26:58,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:26:58,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:26:58,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:26:58,603 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-20 17:26:59,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:26:59,290 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-20 17:26:59,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:26:59,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-07-20 17:26:59,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:26:59,297 INFO L225 Difference]: With dead ends: 919 [2020-07-20 17:26:59,297 INFO L226 Difference]: Without dead ends: 608 [2020-07-20 17:26:59,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:26:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-20 17:26:59,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-20 17:26:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-20 17:26:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-20 17:26:59,330 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 113 [2020-07-20 17:26:59,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:26:59,330 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-20 17:26:59,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:26:59,331 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-20 17:26:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 17:26:59,334 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:26:59,334 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:26:59,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:26:59,550 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:26:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:26:59,551 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-07-20 17:26:59,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:26:59,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711139324] [2020-07-20 17:26:59,553 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:26:59,646 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:26:59,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:26:59,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:26:59,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:26:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:26:59,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:26:59,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711139324] [2020-07-20 17:26:59,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:26:59,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:26:59,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146019010] [2020-07-20 17:26:59,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:26:59,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:26:59,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:26:59,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:26:59,713 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-20 17:27:00,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:00,349 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-20 17:27:00,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:00,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-20 17:27:00,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:00,356 INFO L225 Difference]: With dead ends: 1209 [2020-07-20 17:27:00,356 INFO L226 Difference]: Without dead ends: 753 [2020-07-20 17:27:00,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:00,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-20 17:27:00,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-20 17:27:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-20 17:27:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-20 17:27:00,398 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 120 [2020-07-20 17:27:00,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:00,399 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-20 17:27:00,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-20 17:27:00,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-20 17:27:00,408 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:00,409 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:00,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:00,617 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:00,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:00,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-07-20 17:27:00,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:00,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426036910] [2020-07-20 17:27:00,619 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:00,717 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:00,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:00,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:27:00,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:00,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:00,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426036910] [2020-07-20 17:27:00,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:00,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:27:00,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421906566] [2020-07-20 17:27:00,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:27:00,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:00,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:27:00,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:27:00,777 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 5 states. [2020-07-20 17:27:01,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:01,659 INFO L93 Difference]: Finished difference Result 1827 states and 2557 transitions. [2020-07-20 17:27:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:27:01,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-20 17:27:01,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:01,671 INFO L225 Difference]: With dead ends: 1827 [2020-07-20 17:27:01,672 INFO L226 Difference]: Without dead ends: 1224 [2020-07-20 17:27:01,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:27:01,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-07-20 17:27:01,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1208. [2020-07-20 17:27:01,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2020-07-20 17:27:01,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1597 transitions. [2020-07-20 17:27:01,747 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1597 transitions. Word has length 124 [2020-07-20 17:27:01,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:01,748 INFO L479 AbstractCegarLoop]: Abstraction has 1208 states and 1597 transitions. [2020-07-20 17:27:01,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:27:01,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1597 transitions. [2020-07-20 17:27:01,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 17:27:01,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:01,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:01,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:01,960 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:01,961 INFO L82 PathProgramCache]: Analyzing trace with hash -570592108, now seen corresponding path program 1 times [2020-07-20 17:27:01,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:01,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837255323] [2020-07-20 17:27:01,962 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:02,055 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:02,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:02,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:27:02,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:02,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:02,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837255323] [2020-07-20 17:27:02,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:02,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:27:02,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162641371] [2020-07-20 17:27:02,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:27:02,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:02,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:27:02,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:27:02,135 INFO L87 Difference]: Start difference. First operand 1208 states and 1597 transitions. Second operand 5 states. [2020-07-20 17:27:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:03,087 INFO L93 Difference]: Finished difference Result 2890 states and 3972 transitions. [2020-07-20 17:27:03,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:27:03,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-07-20 17:27:03,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:03,104 INFO L225 Difference]: With dead ends: 2890 [2020-07-20 17:27:03,105 INFO L226 Difference]: Without dead ends: 1688 [2020-07-20 17:27:03,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:27:03,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2020-07-20 17:27:03,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1680. [2020-07-20 17:27:03,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-07-20 17:27:03,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2186 transitions. [2020-07-20 17:27:03,220 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2186 transitions. Word has length 133 [2020-07-20 17:27:03,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:03,220 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2186 transitions. [2020-07-20 17:27:03,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:27:03,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2186 transitions. [2020-07-20 17:27:03,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 17:27:03,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:03,233 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:03,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:03,449 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:03,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:03,449 INFO L82 PathProgramCache]: Analyzing trace with hash 411969091, now seen corresponding path program 1 times [2020-07-20 17:27:03,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:03,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213703468] [2020-07-20 17:27:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:03,566 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:03,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:03,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:03,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:03,668 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:03,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:03,754 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:03,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213703468] [2020-07-20 17:27:03,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:03,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:03,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290906958] [2020-07-20 17:27:03,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:03,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:03,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:03,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:03,757 INFO L87 Difference]: Start difference. First operand 1680 states and 2186 transitions. Second operand 6 states. [2020-07-20 17:27:04,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:04,585 INFO L93 Difference]: Finished difference Result 3362 states and 4385 transitions. [2020-07-20 17:27:04,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:27:04,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2020-07-20 17:27:04,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:04,598 INFO L225 Difference]: With dead ends: 3362 [2020-07-20 17:27:04,598 INFO L226 Difference]: Without dead ends: 1533 [2020-07-20 17:27:04,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 278 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:04,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-07-20 17:27:04,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1526. [2020-07-20 17:27:04,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-07-20 17:27:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1835 transitions. [2020-07-20 17:27:04,663 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1835 transitions. Word has length 142 [2020-07-20 17:27:04,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:04,663 INFO L479 AbstractCegarLoop]: Abstraction has 1526 states and 1835 transitions. [2020-07-20 17:27:04,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:04,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1835 transitions. [2020-07-20 17:27:04,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 17:27:04,669 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:04,669 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:04,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:04,885 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:04,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:04,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1254253877, now seen corresponding path program 1 times [2020-07-20 17:27:04,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:04,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569385979] [2020-07-20 17:27:04,887 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:05,009 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:05,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:05,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:27:05,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:05,050 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:05,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:05,117 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:05,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569385979] [2020-07-20 17:27:05,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:05,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:05,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033709126] [2020-07-20 17:27:05,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:05,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:05,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:05,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:05,120 INFO L87 Difference]: Start difference. First operand 1526 states and 1835 transitions. Second operand 6 states. [2020-07-20 17:27:06,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:06,536 INFO L93 Difference]: Finished difference Result 4976 states and 6577 transitions. [2020-07-20 17:27:06,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:27:06,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-20 17:27:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:06,559 INFO L225 Difference]: With dead ends: 4976 [2020-07-20 17:27:06,559 INFO L226 Difference]: Without dead ends: 3456 [2020-07-20 17:27:06,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:06,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states. [2020-07-20 17:27:06,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3357. [2020-07-20 17:27:06,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3357 states. [2020-07-20 17:27:06,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 4086 transitions. [2020-07-20 17:27:06,692 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 4086 transitions. Word has length 146 [2020-07-20 17:27:06,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:06,693 INFO L479 AbstractCegarLoop]: Abstraction has 3357 states and 4086 transitions. [2020-07-20 17:27:06,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:06,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 4086 transitions. [2020-07-20 17:27:06,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-20 17:27:06,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:06,702 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:06,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:06,917 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:06,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:06,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1630578362, now seen corresponding path program 1 times [2020-07-20 17:27:06,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:06,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943671798] [2020-07-20 17:27:06,919 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 [2020-07-20 17:27:07,029 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:07,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:07,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:07,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:07,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:07,161 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:07,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943671798] [2020-07-20 17:27:07,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:07,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:27:07,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539934966] [2020-07-20 17:27:07,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:27:07,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:07,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:27:07,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:27:07,164 INFO L87 Difference]: Start difference. First operand 3357 states and 4086 transitions. Second operand 7 states. [2020-07-20 17:27:08,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:08,480 INFO L93 Difference]: Finished difference Result 7856 states and 9502 transitions. [2020-07-20 17:27:08,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:27:08,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-07-20 17:27:08,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:08,501 INFO L225 Difference]: With dead ends: 7856 [2020-07-20 17:27:08,502 INFO L226 Difference]: Without dead ends: 4509 [2020-07-20 17:27:08,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:08,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2020-07-20 17:27:08,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4219. [2020-07-20 17:27:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4219 states. [2020-07-20 17:27:08,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 4813 transitions. [2020-07-20 17:27:08,638 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 4813 transitions. Word has length 156 [2020-07-20 17:27:08,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:08,639 INFO L479 AbstractCegarLoop]: Abstraction has 4219 states and 4813 transitions. [2020-07-20 17:27:08,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:27:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 4813 transitions. [2020-07-20 17:27:08,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-20 17:27:08,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:08,649 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:08,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:08,863 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:08,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:08,864 INFO L82 PathProgramCache]: Analyzing trace with hash 2042467530, now seen corresponding path program 1 times [2020-07-20 17:27:08,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:08,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581046023] [2020-07-20 17:27:08,865 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 [2020-07-20 17:27:08,979 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:08,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:08,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:27:08,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-20 17:27:09,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:09,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581046023] [2020-07-20 17:27:09,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:09,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:27:09,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824154295] [2020-07-20 17:27:09,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:27:09,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:09,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:27:09,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:27:09,051 INFO L87 Difference]: Start difference. First operand 4219 states and 4813 transitions. Second operand 5 states. [2020-07-20 17:27:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:09,501 INFO L93 Difference]: Finished difference Result 6765 states and 7708 transitions. [2020-07-20 17:27:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:27:09,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-07-20 17:27:09,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:09,511 INFO L225 Difference]: With dead ends: 6765 [2020-07-20 17:27:09,511 INFO L226 Difference]: Without dead ends: 2402 [2020-07-20 17:27:09,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:09,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2020-07-20 17:27:09,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2400. [2020-07-20 17:27:09,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2400 states. [2020-07-20 17:27:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 2584 transitions. [2020-07-20 17:27:09,577 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 2584 transitions. Word has length 170 [2020-07-20 17:27:09,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:09,578 INFO L479 AbstractCegarLoop]: Abstraction has 2400 states and 2584 transitions. [2020-07-20 17:27:09,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:27:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 2584 transitions. [2020-07-20 17:27:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 17:27:09,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:09,584 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:09,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:09,798 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:09,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:09,799 INFO L82 PathProgramCache]: Analyzing trace with hash 2108658743, now seen corresponding path program 1 times [2020-07-20 17:27:09,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:09,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201073614] [2020-07-20 17:27:09,802 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 [2020-07-20 17:27:09,913 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:09,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:09,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:09,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 17:27:09,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 17:27:10,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201073614] [2020-07-20 17:27:10,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:10,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:10,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524900256] [2020-07-20 17:27:10,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:10,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:10,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:10,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:10,043 INFO L87 Difference]: Start difference. First operand 2400 states and 2584 transitions. Second operand 6 states. [2020-07-20 17:27:10,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:10,933 INFO L93 Difference]: Finished difference Result 3921 states and 4215 transitions. [2020-07-20 17:27:10,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:27:10,934 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-20 17:27:10,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:10,946 INFO L225 Difference]: With dead ends: 3921 [2020-07-20 17:27:10,946 INFO L226 Difference]: Without dead ends: 2104 [2020-07-20 17:27:10,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:10,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-07-20 17:27:11,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 1662. [2020-07-20 17:27:11,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-07-20 17:27:11,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 1758 transitions. [2020-07-20 17:27:11,007 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 1758 transitions. Word has length 182 [2020-07-20 17:27:11,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:11,013 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 1758 transitions. [2020-07-20 17:27:11,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:11,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 1758 transitions. [2020-07-20 17:27:11,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-20 17:27:11,022 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:11,023 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, 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] [2020-07-20 17:27:11,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:11,238 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:11,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:11,239 INFO L82 PathProgramCache]: Analyzing trace with hash 698359958, now seen corresponding path program 1 times [2020-07-20 17:27:11,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:11,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935316058] [2020-07-20 17:27:11,240 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 [2020-07-20 17:27:11,429 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:11,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:11,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 17:27:11,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-20 17:27:11,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:11,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935316058] [2020-07-20 17:27:11,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:11,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:27:11,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252713454] [2020-07-20 17:27:11,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:27:11,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:11,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:27:11,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:27:11,532 INFO L87 Difference]: Start difference. First operand 1662 states and 1758 transitions. Second operand 5 states. [2020-07-20 17:27:12,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:12,375 INFO L93 Difference]: Finished difference Result 3931 states and 4173 transitions. [2020-07-20 17:27:12,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:27:12,376 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2020-07-20 17:27:12,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:12,387 INFO L225 Difference]: With dead ends: 3931 [2020-07-20 17:27:12,387 INFO L226 Difference]: Without dead ends: 2717 [2020-07-20 17:27:12,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:12,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2020-07-20 17:27:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2567. [2020-07-20 17:27:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2567 states. [2020-07-20 17:27:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 2732 transitions. [2020-07-20 17:27:12,446 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 2732 transitions. Word has length 204 [2020-07-20 17:27:12,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:12,447 INFO L479 AbstractCegarLoop]: Abstraction has 2567 states and 2732 transitions. [2020-07-20 17:27:12,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:27:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 2732 transitions. [2020-07-20 17:27:12,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-20 17:27:12,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:12,454 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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] [2020-07-20 17:27:12,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:12,668 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:12,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:12,668 INFO L82 PathProgramCache]: Analyzing trace with hash -571909135, now seen corresponding path program 1 times [2020-07-20 17:27:12,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:12,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757986690] [2020-07-20 17:27:12,670 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:12,872 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:12,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:12,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 17:27:12,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-20 17:27:12,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:12,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757986690] [2020-07-20 17:27:12,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:12,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:12,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083044114] [2020-07-20 17:27:12,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:12,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:12,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:12,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:12,915 INFO L87 Difference]: Start difference. First operand 2567 states and 2732 transitions. Second operand 3 states. [2020-07-20 17:27:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:13,371 INFO L93 Difference]: Finished difference Result 4205 states and 4482 transitions. [2020-07-20 17:27:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:13,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-07-20 17:27:13,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:13,384 INFO L225 Difference]: With dead ends: 4205 [2020-07-20 17:27:13,384 INFO L226 Difference]: Without dead ends: 2996 [2020-07-20 17:27:13,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:13,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2020-07-20 17:27:13,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2564. [2020-07-20 17:27:13,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2564 states. [2020-07-20 17:27:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 2726 transitions. [2020-07-20 17:27:13,452 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 2726 transitions. Word has length 212 [2020-07-20 17:27:13,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:13,452 INFO L479 AbstractCegarLoop]: Abstraction has 2564 states and 2726 transitions. [2020-07-20 17:27:13,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:13,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 2726 transitions. [2020-07-20 17:27:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-20 17:27:13,459 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:13,459 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, 3, 3, 3, 3, 3, 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] [2020-07-20 17:27:13,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:13,673 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:13,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:13,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1841503196, now seen corresponding path program 1 times [2020-07-20 17:27:13,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:13,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275258834] [2020-07-20 17:27:13,674 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:13,812 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:13,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:13,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:13,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-20 17:27:13,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 146 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-20 17:27:14,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275258834] [2020-07-20 17:27:14,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:14,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:14,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088253522] [2020-07-20 17:27:14,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:14,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:14,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:14,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:14,015 INFO L87 Difference]: Start difference. First operand 2564 states and 2726 transitions. Second operand 6 states. [2020-07-20 17:27:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:14,897 INFO L93 Difference]: Finished difference Result 5580 states and 5991 transitions. [2020-07-20 17:27:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:27:14,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 217 [2020-07-20 17:27:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:14,910 INFO L225 Difference]: With dead ends: 5580 [2020-07-20 17:27:14,910 INFO L226 Difference]: Without dead ends: 2846 [2020-07-20 17:27:14,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 430 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:14,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2020-07-20 17:27:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2838. [2020-07-20 17:27:14,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2838 states. [2020-07-20 17:27:14,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 2997 transitions. [2020-07-20 17:27:14,982 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 2997 transitions. Word has length 217 [2020-07-20 17:27:14,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:14,982 INFO L479 AbstractCegarLoop]: Abstraction has 2838 states and 2997 transitions. [2020-07-20 17:27:14,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:14,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 2997 transitions. [2020-07-20 17:27:14,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-20 17:27:14,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:14,989 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:15,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:15,203 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:15,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:15,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-07-20 17:27:15,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:15,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741480735] [2020-07-20 17:27:15,203 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:15,333 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:15,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:15,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:27:15,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-20 17:27:15,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:15,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741480735] [2020-07-20 17:27:15,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:15,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:15,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491247246] [2020-07-20 17:27:15,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:15,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:15,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:15,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:15,392 INFO L87 Difference]: Start difference. First operand 2838 states and 2997 transitions. Second operand 3 states. [2020-07-20 17:27:15,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:15,857 INFO L93 Difference]: Finished difference Result 3428 states and 3597 transitions. [2020-07-20 17:27:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:15,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-20 17:27:15,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:15,860 INFO L225 Difference]: With dead ends: 3428 [2020-07-20 17:27:15,860 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:27:15,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:15,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:27:15,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:27:15,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:27:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:27:15,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-07-20 17:27:15,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:15,877 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:27:15,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:15,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:27:15,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:27:16,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:16,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:27:17,715 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 92 [2020-07-20 17:27:18,460 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-07-20 17:27:19,188 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-07-20 17:27:19,192 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:27:19,192 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a11~0 |old(~a11~0)|) (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 17:27:19,193 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:27:19,193 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,193 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,193 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,193 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,194 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,194 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 17:27:19,194 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 17:27:19,194 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 17:27:19,194 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 17:27:19,194 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 17:27:19,195 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 17:27:19,195 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 17:27:19,195 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 17:27:19,195 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 17:27:19,195 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 17:27:19,195 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 17:27:19,196 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 17:27:19,197 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 17:27:19,197 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 17:27:19,197 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:27:19,197 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:27:19,197 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 17:27:19,197 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 17:27:19,197 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 17:27:19,197 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:27:19,197 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:27:19,198 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 17:27:19,198 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,198 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,198 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,198 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,198 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,198 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-07-20 17:27:19,198 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:27:19,199 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 17:27:19,199 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:27:19,199 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 17:27:19,199 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 17:27:19,199 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 17:27:19,199 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 17:27:19,199 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 17:27:19,199 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 17:27:19,199 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 17:27:19,200 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 17:27:19,200 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,200 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,200 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,200 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,200 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,200 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 17:27:19,200 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 17:27:19,200 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 17:27:19,201 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 17:27:19,201 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 17:27:19,201 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 17:27:19,201 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 17:27:19,201 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 17:27:19,201 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 17:27:19,201 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 17:27:19,201 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 17:27:19,202 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 17:27:19,202 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 17:27:19,202 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,202 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,202 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,202 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,202 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,202 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 17:27:19,203 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:27:19,204 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 17:27:19,205 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 17:27:19,206 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 17:27:19,207 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,208 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,209 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse13 (= 1 |old(~a11~0)|)) (.cse2 (<= ~a11~0 |old(~a11~0)|)) (.cse4 (<= ~a28~0 |old(~a28~0)|)) (.cse18 (<= ~a17~0 8)) (.cse19 (<= 8 ~a17~0)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse7 (<= |old(~a28~0)| ~a28~0)) (.cse12 (= 1 ~a25~0))) (let ((.cse9 (not (<= |old(~a11~0)| 0))) (.cse22 (<= ~a28~0 10)) (.cse23 (<= 10 ~a28~0)) (.cse24 (not (<= 10 |old(~a28~0)|))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse21 (not (<= 9 |old(~a28~0)|))) (.cse15 (and .cse2 .cse4 .cse18 .cse19 .cse5 .cse7 .cse12)) (.cse3 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (= 1 ~a11~0)) (.cse25 (not (<= |old(~a17~0)| 7))) (.cse20 (not .cse13)) (.cse10 (not (= 1 |old(~a19~0)|))) (.cse17 (not (<= |old(~a28~0)| 7))) (.cse16 (not (<= 8 |old(~a17~0)|))) (.cse14 (not (= 1 |old(~a25~0)|))) (.cse8 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9) (or .cse10 (and .cse2 .cse3 .cse4 (not .cse11) .cse5 .cse7 .cse12) .cse13 .cse14 (not (<= 11 |old(~a28~0)|)) .cse8) (or .cse10 .cse0 .cse15 .cse16 .cse14 .cse8 .cse9) (or .cse17 .cse16 .cse1 (and .cse11 .cse4 .cse18 .cse19 .cse5 .cse6 .cse7) .cse8 .cse20) (or .cse10 .cse0 .cse21 (and .cse2 .cse4 .cse18 .cse19 .cse5 .cse6 .cse7) .cse16 .cse8 .cse9) (or .cse17 .cse19 .cse16 .cse1 .cse8 .cse9) (or .cse10 .cse17 .cse16 (and .cse2 .cse4 .cse18 .cse19 .cse5 .cse7 .cse6) .cse8 .cse9) (or .cse10 (and .cse22 .cse23 .cse5) .cse0 .cse24) (or .cse0 .cse1 .cse25 (and .cse3 .cse22 .cse23 .cse5 .cse6) .cse24) (or (and .cse3 .cse4 .cse5 .cse12) .cse0 .cse14 .cse1 .cse25) (or .cse10 .cse0 .cse21 .cse16 (and .cse4 .cse11 .cse18 .cse19 .cse5 .cse6 .cse7) .cse8 .cse20) (or .cse10 .cse0 .cse21 .cse15 .cse16 .cse14 .cse8) (or .cse10 .cse17 .cse14 (and .cse3 .cse4 .cse11 .cse5 .cse7 .cse12) .cse25 .cse20) (or .cse10 (and .cse4 .cse18 .cse19 .cse5 .cse12) .cse17 .cse16 .cse14 .cse8)))) [2020-07-20 17:27:19,209 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,209 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,209 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,209 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 17:27:19,209 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 17:27:19,209 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 17:27:19,209 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 17:27:19,209 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 17:27:19,209 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 17:27:19,210 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 17:27:19,211 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 17:27:19,212 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-20 17:27:19,213 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:27:19,213 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:27:19,213 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 17:27:19,214 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse8 (< 0 |old(~a19~0)|)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (= 1 ~a11~0)) (.cse13 (<= ~a19~0 |old(~a19~0)|)) (.cse12 (<= 9 ~a28~0)) (.cse11 (<= ~a17~0 7)) (.cse6 (<= ~a19~0 0)) (.cse4 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse14 (<= 10 ~a28~0)) (.cse7 (<= ~a11~0 |old(~a11~0)|)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= 8 ~a17~0)) (.cse3 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse5 .cse2 .cse1 .cse6 .cse3) (and .cse0 .cse1 (not .cse5) (<= 11 ~a28~0) .cse4) (and .cse7 .cse8 .cse0 .cse9 .cse2 .cse10 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse11 .cse3 .cse4) (and .cse7 .cse1 .cse10 .cse6) (and .cse8 .cse0 .cse9 .cse2 .cse10 .cse12 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse10 .cse13 .cse12) (and .cse10 .cse11 .cse14 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse10 .cse13 .cse12) (not (<= |old(~a17~0)| 8)) (and .cse10 .cse11 .cse6 .cse4) (and .cse0 .cse10 .cse14) (and .cse7 .cse0 .cse1 .cse2 .cse3 (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)))) [2020-07-20 17:27:19,214 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:27:19,214 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:27:19,214 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse8 (< 0 |old(~a19~0)|)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (= 1 ~a11~0)) (.cse13 (<= ~a19~0 |old(~a19~0)|)) (.cse12 (<= 9 ~a28~0)) (.cse11 (<= ~a17~0 7)) (.cse6 (<= ~a19~0 0)) (.cse4 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse14 (<= 10 ~a28~0)) (.cse7 (<= ~a11~0 |old(~a11~0)|)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= 8 ~a17~0)) (.cse3 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse5 .cse2 .cse1 .cse6 .cse3) (and .cse0 .cse1 (not .cse5) (<= 11 ~a28~0) .cse4) (and .cse7 .cse8 .cse0 .cse9 .cse2 .cse10 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse11 .cse3 .cse4) (and .cse7 .cse1 .cse10 .cse6) (and .cse8 .cse0 .cse9 .cse2 .cse10 .cse12 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse10 .cse13 .cse12) (and .cse10 .cse11 .cse14 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse10 .cse13 .cse12) (not (<= |old(~a17~0)| 8)) (and .cse10 .cse11 .cse6 .cse4) (and .cse0 .cse10 .cse14) (and .cse7 .cse0 .cse1 .cse2 .cse3 (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)))) [2020-07-20 17:27:19,214 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 17:27:19,214 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 17:27:19,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:27:19 BoogieIcfgContainer [2020-07-20 17:27:19,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:27:19,251 INFO L168 Benchmark]: Toolchain (without parser) took 24844.71 ms. Allocated memory was 144.7 MB in the beginning and 537.4 MB in the end (delta: 392.7 MB). Free memory was 101.4 MB in the beginning and 393.8 MB in the end (delta: -292.4 MB). Peak memory consumption was 375.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:19,252 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 17:27:19,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.06 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 101.0 MB in the beginning and 171.7 MB in the end (delta: -70.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:19,253 INFO L168 Benchmark]: Boogie Preprocessor took 114.53 ms. Allocated memory is still 204.5 MB. Free memory was 171.7 MB in the beginning and 166.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:19,254 INFO L168 Benchmark]: RCFGBuilder took 1399.82 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.6 MB in the beginning and 182.0 MB in the end (delta: -15.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:19,260 INFO L168 Benchmark]: TraceAbstraction took 22615.69 ms. Allocated memory was 236.5 MB in the beginning and 537.4 MB in the end (delta: 300.9 MB). Free memory was 182.0 MB in the beginning and 393.8 MB in the end (delta: -211.8 MB). Peak memory consumption was 364.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:19,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.06 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 101.0 MB in the beginning and 171.7 MB in the end (delta: -70.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.53 ms. Allocated memory is still 204.5 MB. Free memory was 171.7 MB in the beginning and 166.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1399.82 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.6 MB in the beginning and 182.0 MB in the end (delta: -15.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22615.69 ms. Allocated memory was 236.5 MB in the beginning and 537.4 MB in the end (delta: 300.9 MB). Free memory was 182.0 MB in the beginning and 393.8 MB in the end (delta: -211.8 MB). Peak memory consumption was 364.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((!(1 == \old(a19)) || !(\old(a28) <= 7)) || ((((1 == a19 && a17 <= 8) && 8 <= a17) && a28 <= 7) && 1 == a25)) || !(8 <= \old(a17))) || ((((1 == a11 && 8 <= a17) && a17 <= 8) && a19 <= 0) && a28 <= 7)) || ((((1 == a19 && a17 <= 8) && !(1 == a11)) && 11 <= a28) && 1 == a25)) || ((((((a11 <= \old(a11) && 0 < \old(a19)) && 1 == a19) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 1 == a25)) || !(\old(a11) <= 0)) || ((((1 == a19 && 1 == a11) && a17 <= 7) && a28 <= 7) && 1 == a25)) || (((a11 <= \old(a11) && a17 <= 8) && a28 <= 10) && a19 <= 0)) || ((((((0 < \old(a19) && 1 == a19) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 9 <= a28) && 1 == a25)) || ((((((a11 <= \old(a11) && 1 == a19) && a17 <= 8) && 8 <= a17) && a28 <= 10) && a19 <= \old(a19)) && 9 <= a28)) || (((a28 <= 10 && a17 <= 7) && 10 <= a28) && a19 <= 0)) || ((((((1 == a19 && 1 == a11) && a17 <= 8) && 8 <= a17) && a28 <= 10) && a19 <= \old(a19)) && 9 <= a28)) || !(\old(a17) <= 8)) || (((a28 <= 10 && a17 <= 7) && a19 <= 0) && 1 == a25)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((((((a11 <= \old(a11) && 1 == a19) && a17 <= 8) && 8 <= a17) && a28 <= 7) && \old(a28) <= a28) && a25 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.3s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1288 SDtfs, 5018 SDslu, 682 SDs, 0 SdLazy, 8552 SolverSat, 1304 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3120 GetRequests, 3053 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4219occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 1744 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 166 PreInvPairs, 206 NumberOfFragments, 1110 HoareAnnotationTreeSize, 166 FomulaSimplifications, 5397 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2885 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2257 NumberOfCodeBlocks, 2257 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 3081 ConstructedInterpolants, 0 QuantifiedInterpolants, 947789 SizeOfPredicates, 14 NumberOfNonLiveVariables, 5835 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 1794/1848 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...