/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:24:33,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:24:34,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:24:34,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:24:34,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:24:34,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:24:34,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:24:34,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:24:34,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:24:34,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:24:34,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:24:34,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:24:34,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:24:34,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:24:34,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:24:34,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:24:34,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:24:34,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:24:34,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:24:34,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:24:34,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:24:34,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:24:34,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:24:34,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:24:34,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:24:34,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:24:34,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:24:34,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:24:34,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:24:34,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:24:34,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:24:34,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:24:34,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:24:34,106 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:24:34,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:24:34,106 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:24:34,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:24:34,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:24:34,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:24:34,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:24:34,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:24:34,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:24:34,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:24:34,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:24:34,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:24:34,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:24:34,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:24:34,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:24:34,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:24:34,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:24:34,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:24:34,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:24:34,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:24:34,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:24:34,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:24:34,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:34,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:24:34,111 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:24:34,111 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 -> NOT_INCREMENTALLY [2020-07-21 11:24:34,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:24:34,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:24:34,418 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:24:34,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:24:34,420 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:24:34,421 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-21 11:24:34,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff8eabbe/0ab7d267cb0c4236bf65a6e22acdd9ae/FLAG99156f155 [2020-07-21 11:24:35,048 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:24:35,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-21 11:24:35,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff8eabbe/0ab7d267cb0c4236bf65a6e22acdd9ae/FLAG99156f155 [2020-07-21 11:24:35,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff8eabbe/0ab7d267cb0c4236bf65a6e22acdd9ae [2020-07-21 11:24:35,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:24:35,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:24:35,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:24:35,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:24:35,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:24:35,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:24:35" (1/1) ... [2020-07-21 11:24:35,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70edd8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:35, skipping insertion in model container [2020-07-21 11:24:35,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:24:35" (1/1) ... [2020-07-21 11:24:35,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:24:35,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:24:35,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:24:35,909 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:24:36,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:24:36,157 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:24:36,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36 WrapperNode [2020-07-21 11:24:36,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:24:36,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:24:36,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:24:36,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:24:36,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36" (1/1) ... [2020-07-21 11:24:36,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36" (1/1) ... [2020-07-21 11:24:36,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36" (1/1) ... [2020-07-21 11:24:36,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36" (1/1) ... [2020-07-21 11:24:36,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36" (1/1) ... [2020-07-21 11:24:36,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36" (1/1) ... [2020-07-21 11:24:36,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36" (1/1) ... [2020-07-21 11:24:36,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:24:36,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:24:36,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:24:36,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:24:36,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:24:36,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:24:36,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:24:36,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:24:36,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:24:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:24:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:24:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:24:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:24:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:24:36,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:24:36,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:24:37,423 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:24:37,423 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:24:37,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:24:37 BoogieIcfgContainer [2020-07-21 11:24:37,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:24:37,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:24:37,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:24:37,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:24:37,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:24:35" (1/3) ... [2020-07-21 11:24:37,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448ab068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:24:37, skipping insertion in model container [2020-07-21 11:24:37,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:24:36" (2/3) ... [2020-07-21 11:24:37,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448ab068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:24:37, skipping insertion in model container [2020-07-21 11:24:37,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:24:37" (3/3) ... [2020-07-21 11:24:37,438 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-07-21 11:24:37,449 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:24:37,458 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:24:37,474 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:24:37,504 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:24:37,505 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:24:37,505 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:24:37,505 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:24:37,506 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:24:37,506 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:24:37,506 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:24:37,506 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:24:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 11:24:37,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 11:24:37,545 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:37,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:37,547 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:37,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:37,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times [2020-07-21 11:24:37,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:37,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442503444] [2020-07-21 11:24:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:37,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:24:37,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:37,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:37,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442503444] [2020-07-21 11:24:37,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:37,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:37,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300480681] [2020-07-21 11:24:37,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:37,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:37,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:37,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:37,873 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 11:24:38,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:38,771 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 11:24:38,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:38,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-21 11:24:38,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:38,791 INFO L225 Difference]: With dead ends: 572 [2020-07-21 11:24:38,791 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 11:24:38,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:38,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 11:24:38,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 11:24:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 11:24:38,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 11:24:38,881 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 119 [2020-07-21 11:24:38,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:38,882 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 11:24:38,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:38,883 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 11:24:38,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 11:24:38,887 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:38,887 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:39,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:39,101 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:39,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:39,102 INFO L82 PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times [2020-07-21 11:24:39,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:39,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605886165] [2020-07-21 11:24:39,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:39,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:24:39,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:39,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:39,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605886165] [2020-07-21 11:24:39,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:39,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:24:39,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930439330] [2020-07-21 11:24:39,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:24:39,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:39,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:24:39,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:24:39,269 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-21 11:24:40,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:40,107 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-21 11:24:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:24:40,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 11:24:40,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:40,120 INFO L225 Difference]: With dead ends: 842 [2020-07-21 11:24:40,120 INFO L226 Difference]: Without dead ends: 570 [2020-07-21 11:24:40,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:24:40,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-21 11:24:40,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-21 11:24:40,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 11:24:40,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-21 11:24:40,178 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 129 [2020-07-21 11:24:40,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:40,178 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-21 11:24:40,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:24:40,179 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-21 11:24:40,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 11:24:40,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:40,183 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:40,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:40,399 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:40,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:40,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times [2020-07-21 11:24:40,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:40,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163709013] [2020-07-21 11:24:40,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:40,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:24:40,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:40,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:40,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163709013] [2020-07-21 11:24:40,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:40,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:40,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109118548] [2020-07-21 11:24:40,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:40,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:40,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:40,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:40,589 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-21 11:24:41,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:41,187 INFO L93 Difference]: Finished difference Result 1652 states and 2381 transitions. [2020-07-21 11:24:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:41,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-21 11:24:41,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:41,209 INFO L225 Difference]: With dead ends: 1652 [2020-07-21 11:24:41,209 INFO L226 Difference]: Without dead ends: 1102 [2020-07-21 11:24:41,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-07-21 11:24:41,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2020-07-21 11:24:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-07-21 11:24:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1516 transitions. [2020-07-21 11:24:41,280 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1516 transitions. Word has length 130 [2020-07-21 11:24:41,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:41,281 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1516 transitions. [2020-07-21 11:24:41,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:41,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1516 transitions. [2020-07-21 11:24:41,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 11:24:41,288 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:41,288 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:41,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:41,502 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:41,503 INFO L82 PathProgramCache]: Analyzing trace with hash 509652639, now seen corresponding path program 1 times [2020-07-21 11:24:41,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:41,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278254349] [2020-07-21 11:24:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:41,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:41,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:41,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:24:41,785 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:41,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278254349] [2020-07-21 11:24:41,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:24:41,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 11:24:41,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822673235] [2020-07-21 11:24:41,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 11:24:41,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:41,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 11:24:41,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:24:41,788 INFO L87 Difference]: Start difference. First operand 1102 states and 1516 transitions. Second operand 8 states. [2020-07-21 11:24:43,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:43,614 INFO L93 Difference]: Finished difference Result 4083 states and 6003 transitions. [2020-07-21 11:24:43,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 11:24:43,615 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2020-07-21 11:24:43,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:43,639 INFO L225 Difference]: With dead ends: 4083 [2020-07-21 11:24:43,640 INFO L226 Difference]: Without dead ends: 2987 [2020-07-21 11:24:43,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:24:43,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2020-07-21 11:24:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2351. [2020-07-21 11:24:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2351 states. [2020-07-21 11:24:43,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3107 transitions. [2020-07-21 11:24:43,774 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 3107 transitions. Word has length 149 [2020-07-21 11:24:43,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:43,774 INFO L479 AbstractCegarLoop]: Abstraction has 2351 states and 3107 transitions. [2020-07-21 11:24:43,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 11:24:43,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 3107 transitions. [2020-07-21 11:24:43,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 11:24:43,783 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:43,783 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:43,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:43,998 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:43,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:43,999 INFO L82 PathProgramCache]: Analyzing trace with hash 127065043, now seen corresponding path program 1 times [2020-07-21 11:24:43,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:43,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547591230] [2020-07-21 11:24:43,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:44,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:44,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:44,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:24:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:24:44,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547591230] [2020-07-21 11:24:44,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:24:44,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:24:44,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586945001] [2020-07-21 11:24:44,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:24:44,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:44,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:24:44,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:24:44,274 INFO L87 Difference]: Start difference. First operand 2351 states and 3107 transitions. Second operand 7 states. [2020-07-21 11:24:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:46,046 INFO L93 Difference]: Finished difference Result 7465 states and 10618 transitions. [2020-07-21 11:24:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:24:46,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-07-21 11:24:46,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:46,081 INFO L225 Difference]: With dead ends: 7465 [2020-07-21 11:24:46,081 INFO L226 Difference]: Without dead ends: 5124 [2020-07-21 11:24:46,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:24:46,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5124 states. [2020-07-21 11:24:46,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5124 to 4716. [2020-07-21 11:24:46,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4716 states. [2020-07-21 11:24:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6222 transitions. [2020-07-21 11:24:46,287 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6222 transitions. Word has length 150 [2020-07-21 11:24:46,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:46,288 INFO L479 AbstractCegarLoop]: Abstraction has 4716 states and 6222 transitions. [2020-07-21 11:24:46,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:24:46,288 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6222 transitions. [2020-07-21 11:24:46,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 11:24:46,307 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:46,308 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:46,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:46,523 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:46,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:46,523 INFO L82 PathProgramCache]: Analyzing trace with hash 941995943, now seen corresponding path program 1 times [2020-07-21 11:24:46,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:46,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409419729] [2020-07-21 11:24:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:46,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:46,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:46,662 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 11:24:46,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:46,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409419729] [2020-07-21 11:24:46,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:46,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:46,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689962151] [2020-07-21 11:24:46,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:46,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:46,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:46,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:46,667 INFO L87 Difference]: Start difference. First operand 4716 states and 6222 transitions. Second operand 3 states. [2020-07-21 11:24:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:47,343 INFO L93 Difference]: Finished difference Result 9553 states and 12594 transitions. [2020-07-21 11:24:47,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:47,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-21 11:24:47,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:47,382 INFO L225 Difference]: With dead ends: 9553 [2020-07-21 11:24:47,383 INFO L226 Difference]: Without dead ends: 5121 [2020-07-21 11:24:47,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:47,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5121 states. [2020-07-21 11:24:47,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5121 to 4575. [2020-07-21 11:24:47,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4575 states. [2020-07-21 11:24:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 5845 transitions. [2020-07-21 11:24:47,528 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 5845 transitions. Word has length 153 [2020-07-21 11:24:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:47,529 INFO L479 AbstractCegarLoop]: Abstraction has 4575 states and 5845 transitions. [2020-07-21 11:24:47,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 5845 transitions. [2020-07-21 11:24:47,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 11:24:47,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:47,543 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:47,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:47,759 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:47,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:47,760 INFO L82 PathProgramCache]: Analyzing trace with hash -763083429, now seen corresponding path program 1 times [2020-07-21 11:24:47,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:47,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317683428] [2020-07-21 11:24:47,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:47,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:47,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 11:24:47,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:47,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317683428] [2020-07-21 11:24:47,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:47,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:47,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6449214] [2020-07-21 11:24:47,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:47,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:47,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:47,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:47,900 INFO L87 Difference]: Start difference. First operand 4575 states and 5845 transitions. Second operand 3 states. [2020-07-21 11:24:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:48,470 INFO L93 Difference]: Finished difference Result 7770 states and 9887 transitions. [2020-07-21 11:24:48,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:48,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-21 11:24:48,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:48,490 INFO L225 Difference]: With dead ends: 7770 [2020-07-21 11:24:48,490 INFO L226 Difference]: Without dead ends: 4710 [2020-07-21 11:24:48,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4710 states. [2020-07-21 11:24:48,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4710 to 4436. [2020-07-21 11:24:48,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4436 states. [2020-07-21 11:24:48,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 5602 transitions. [2020-07-21 11:24:48,614 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 5602 transitions. Word has length 154 [2020-07-21 11:24:48,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:48,615 INFO L479 AbstractCegarLoop]: Abstraction has 4436 states and 5602 transitions. [2020-07-21 11:24:48,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:48,616 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 5602 transitions. [2020-07-21 11:24:48,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 11:24:48,630 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:48,630 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:48,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:48,845 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:48,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:48,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1873222613, now seen corresponding path program 1 times [2020-07-21 11:24:48,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:48,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707796261] [2020-07-21 11:24:48,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:48,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:48,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 11:24:48,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:48,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707796261] [2020-07-21 11:24:48,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:48,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:48,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118394244] [2020-07-21 11:24:48,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:48,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:48,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:48,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:48,974 INFO L87 Difference]: Start difference. First operand 4436 states and 5602 transitions. Second operand 3 states. [2020-07-21 11:24:49,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:49,508 INFO L93 Difference]: Finished difference Result 7911 states and 9988 transitions. [2020-07-21 11:24:49,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:49,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-07-21 11:24:49,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:49,526 INFO L225 Difference]: With dead ends: 7911 [2020-07-21 11:24:49,527 INFO L226 Difference]: Without dead ends: 4436 [2020-07-21 11:24:49,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:49,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4436 states. [2020-07-21 11:24:49,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4436 to 4436. [2020-07-21 11:24:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4436 states. [2020-07-21 11:24:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 5429 transitions. [2020-07-21 11:24:49,628 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 5429 transitions. Word has length 155 [2020-07-21 11:24:49,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:49,629 INFO L479 AbstractCegarLoop]: Abstraction has 4436 states and 5429 transitions. [2020-07-21 11:24:49,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 5429 transitions. [2020-07-21 11:24:49,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 11:24:49,641 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:49,644 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:24:49,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:49,859 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:49,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:49,860 INFO L82 PathProgramCache]: Analyzing trace with hash 590175403, now seen corresponding path program 1 times [2020-07-21 11:24:49,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:49,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621718207] [2020-07-21 11:24:49,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:49,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:24:49,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:50,061 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 11:24:50,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:24:50,143 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 11:24:50,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621718207] [2020-07-21 11:24:50,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:24:50,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 11:24:50,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462994504] [2020-07-21 11:24:50,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:24:50,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:50,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:24:50,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:24:50,146 INFO L87 Difference]: Start difference. First operand 4436 states and 5429 transitions. Second operand 5 states. [2020-07-21 11:24:50,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:50,837 INFO L93 Difference]: Finished difference Result 5143 states and 6330 transitions. [2020-07-21 11:24:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:24:50,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2020-07-21 11:24:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:50,857 INFO L225 Difference]: With dead ends: 5143 [2020-07-21 11:24:50,858 INFO L226 Difference]: Without dead ends: 5141 [2020-07-21 11:24:50,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:24:50,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5141 states. [2020-07-21 11:24:50,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 4851. [2020-07-21 11:24:50,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4851 states. [2020-07-21 11:24:50,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 5950 transitions. [2020-07-21 11:24:50,970 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 5950 transitions. Word has length 163 [2020-07-21 11:24:50,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:50,970 INFO L479 AbstractCegarLoop]: Abstraction has 4851 states and 5950 transitions. [2020-07-21 11:24:50,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:24:50,971 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 5950 transitions. [2020-07-21 11:24:50,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-21 11:24:50,987 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:50,987 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:24:51,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:51,203 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:51,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:51,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1466650285, now seen corresponding path program 1 times [2020-07-21 11:24:51,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:51,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689053433] [2020-07-21 11:24:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:51,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:24:51,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 11:24:51,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:24:51,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689053433] [2020-07-21 11:24:51,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:24:51,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:24:51,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812372990] [2020-07-21 11:24:51,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:24:51,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:51,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:24:51,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:51,392 INFO L87 Difference]: Start difference. First operand 4851 states and 5950 transitions. Second operand 3 states. [2020-07-21 11:24:51,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:51,931 INFO L93 Difference]: Finished difference Result 8878 states and 10858 transitions. [2020-07-21 11:24:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:24:51,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2020-07-21 11:24:51,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:51,948 INFO L225 Difference]: With dead ends: 8878 [2020-07-21 11:24:51,948 INFO L226 Difference]: Without dead ends: 4986 [2020-07-21 11:24:51,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:24:51,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4986 states. [2020-07-21 11:24:52,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4986 to 4432. [2020-07-21 11:24:52,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4432 states. [2020-07-21 11:24:52,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 5400 transitions. [2020-07-21 11:24:52,048 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 5400 transitions. Word has length 175 [2020-07-21 11:24:52,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:52,048 INFO L479 AbstractCegarLoop]: Abstraction has 4432 states and 5400 transitions. [2020-07-21 11:24:52,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:24:52,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 5400 transitions. [2020-07-21 11:24:52,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 11:24:52,062 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:24:52,062 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 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] [2020-07-21 11:24:52,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:52,277 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:24:52,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:24:52,278 INFO L82 PathProgramCache]: Analyzing trace with hash -853384892, now seen corresponding path program 1 times [2020-07-21 11:24:52,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:24:52,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448000523] [2020-07-21 11:24:52,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:24:52,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:24:52,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:24:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 11:24:52,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:24:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 11:24:52,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448000523] [2020-07-21 11:24:52,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:24:52,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:24:52,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299381890] [2020-07-21 11:24:52,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:24:52,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:24:52,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:24:52,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:24:52,570 INFO L87 Difference]: Start difference. First operand 4432 states and 5400 transitions. Second operand 7 states. [2020-07-21 11:24:54,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:24:54,076 INFO L93 Difference]: Finished difference Result 7689 states and 9434 transitions. [2020-07-21 11:24:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:24:54,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-07-21 11:24:54,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:24:54,078 INFO L225 Difference]: With dead ends: 7689 [2020-07-21 11:24:54,078 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:24:54,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:24:54,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:24:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:24:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:24:54,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:24:54,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212 [2020-07-21 11:24:54,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:24:54,103 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:24:54,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:24:54,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:24:54,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:24:54,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:24:54,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:24:55,214 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 142 [2020-07-21 11:24:55,581 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 142 [2020-07-21 11:24:57,077 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 169 DAG size of output: 101 [2020-07-21 11:24:58,009 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 51 [2020-07-21 11:24:58,875 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 51 [2020-07-21 11:24:58,880 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:24:58,880 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a21~0 |old(~a21~0)|)) [2020-07-21 11:24:58,881 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:24:58,881 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 11:24:58,881 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 11:24:58,881 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,882 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,882 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,882 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,882 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,882 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,882 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 11:24:58,883 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 11:24:58,883 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 11:24:58,883 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 11:24:58,883 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 11:24:58,883 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 11:24:58,883 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 11:24:58,883 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 11:24:58,883 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 11:24:58,884 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 11:24:58,884 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,884 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,884 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,884 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,884 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,884 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,885 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 11:24:58,885 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 11:24:58,885 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 11:24:58,885 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 11:24:58,885 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 11:24:58,885 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 11:24:58,885 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 11:24:58,885 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 11:24:58,885 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 11:24:58,886 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 11:24:58,886 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 11:24:58,886 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2020-07-21 11:24:58,886 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 11:24:58,886 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 11:24:58,886 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 11:24:58,886 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 11:24:58,887 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,887 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,887 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,887 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,887 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,887 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 11:24:58,887 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 11:24:58,887 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 11:24:58,887 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 11:24:58,888 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 11:24:58,888 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 11:24:58,888 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 11:24:58,888 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 11:24:58,888 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 11:24:58,888 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,888 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,888 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,889 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,889 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,889 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 11:24:58,889 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 11:24:58,889 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 11:24:58,889 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 11:24:58,889 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 11:24:58,889 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 11:24:58,890 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 11:24:58,890 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 11:24:58,890 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 11:24:58,890 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 11:24:58,890 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 11:24:58,890 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 11:24:58,890 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 11:24:58,890 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,890 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,891 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,891 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,891 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,891 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 11:24:58,891 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 11:24:58,891 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 11:24:58,891 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 11:24:58,891 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 11:24:58,892 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 11:24:58,892 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 11:24:58,892 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 11:24:58,892 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 11:24:58,892 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,892 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,892 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,892 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,893 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,893 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,893 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 11:24:58,893 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,893 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 11:24:58,893 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 11:24:58,893 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 11:24:58,893 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 11:24:58,894 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 11:24:58,894 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 11:24:58,894 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 11:24:58,894 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 11:24:58,894 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 11:24:58,894 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 11:24:58,894 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 11:24:58,894 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 11:24:58,894 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 11:24:58,895 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,895 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,895 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,895 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,895 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,895 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 11:24:58,895 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 11:24:58,895 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 11:24:58,895 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 11:24:58,896 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 11:24:58,896 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 11:24:58,896 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 11:24:58,896 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 11:24:58,896 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,896 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,896 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,896 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,896 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,897 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 11:24:58,897 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 11:24:58,897 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 11:24:58,897 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 11:24:58,897 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 11:24:58,897 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 11:24:58,897 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 11:24:58,897 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 11:24:58,898 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 11:24:58,898 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 11:24:58,898 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a8~0)| 13))) (.cse17 (not (<= |old(~a16~0)| 5))) (.cse20 (<= ~a16~0 5)) (.cse4 (<= ~a8~0 |old(~a8~0)|)) (.cse5 (<= ~a16~0 |old(~a16~0)|))) (let ((.cse16 (not (<= |old(~a21~0)| 0))) (.cse15 (<= 15 ~a8~0)) (.cse13 (<= 5 ~a16~0)) (.cse14 (not (<= 15 |old(~a8~0)|))) (.cse21 (= ~a7~0 |old(~a7~0)|)) (.cse12 (<= 14 ~a8~0)) (.cse8 (= 1 ~a17~0)) (.cse11 (not (<= 5 |old(~a16~0)|))) (.cse9 (not (<= 14 |old(~a8~0)|))) (.cse3 (not (<= |old(~a16~0)| 4))) (.cse19 (not (<= |old(~a7~0)| 0))) (.cse2 (not (= 1 |old(~a17~0)|))) (.cse18 (or (and .cse4 .cse5 .cse20 (< ~a8~0 15)) (and .cse4 .cse5 (<= ~a8~0 13)))) (.cse6 (= 1 ~a7~0)) (.cse22 (<= 6 ~a16~0)) (.cse7 (<= ~a21~0 |old(~a21~0)|)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse10 (and .cse1 (or .cse17 (not (< |old(~a8~0)| 15))))) (.cse23 (not (<= 6 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8)) (or .cse9 .cse10 .cse11 (and .cse12 .cse13)) (or .cse14 (and .cse4 .cse5 .cse6 .cse7 .cse15) .cse0 .cse3) (or .cse16 .cse0 .cse17 .cse8 .cse1 .cse2) (or .cse16 .cse0 (and .cse18 .cse6 .cse7) .cse3 .cse10) (or .cse14 .cse19 .cse15) (or .cse14 .cse19 .cse8 .cse17 .cse2) (or .cse16 .cse0 (and .cse18 .cse6 .cse7 .cse13) .cse10 .cse11) (or .cse14 .cse19 .cse13 .cse11) (or .cse14 .cse0 .cse17 .cse11 (and .cse4 .cse6 .cse7 .cse20 .cse15 .cse13)) (or .cse14 .cse19 (and .cse4 .cse5 .cse21 .cse22 .cse7) .cse23) (or (and .cse21 (or (and .cse18 .cse7 .cse12) (and (let ((.cse24 (<= ~a7~0 0))) (or (and .cse4 .cse5 .cse24 .cse8) (and .cse4 .cse5 .cse24 .cse20))) .cse7))) (and (or .cse9 .cse10 .cse11) (or .cse19 .cse17) (or .cse9 .cse3 .cse10) (or .cse19 .cse1 .cse2))) (or (and .cse18 .cse6 .cse22 .cse7) .cse0 .cse10 .cse23)))) [2020-07-21 11:24:58,898 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 11:24:58,899 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,899 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,899 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,899 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,899 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 11:24:58,899 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,899 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,899 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 11:24:58,899 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 11:24:58,900 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 11:24:58,900 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 11:24:58,900 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 11:24:58,900 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 11:24:58,900 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 11:24:58,900 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 11:24:58,900 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 11:24:58,900 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 11:24:58,900 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 11:24:58,901 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 11:24:58,901 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,901 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,901 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,901 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,901 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,901 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 11:24:58,901 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,901 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 11:24:58,902 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 11:24:58,902 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 11:24:58,902 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 11:24:58,902 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 11:24:58,902 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 11:24:58,902 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 11:24:58,902 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 11:24:58,902 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 11:24:58,902 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 11:24:58,903 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 11:24:58,903 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 11:24:58,903 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 11:24:58,903 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 11:24:58,903 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,903 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,903 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,903 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,903 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,904 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:24:58,904 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 11:24:58,904 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 11:24:58,904 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 11:24:58,904 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 11:24:58,904 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 11:24:58,904 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 11:24:58,904 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 11:24:58,904 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 11:24:58,905 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 11:24:58,905 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 11:24:58,905 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:24:58,905 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) [2020-07-21 11:24:58,905 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:24:58,905 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:24:58,905 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a17~0)|)) (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a21~0 |old(~a21~0)|) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) (not (<= 5 |old(~a16~0)|))) [2020-07-21 11:24:58,906 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:24:58,906 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse3 (<= ~a8~0 13)) (.cse6 (<= ~a16~0 5))) (let ((.cse2 (= 1 ~a17~0)) (.cse0 (= 1 ~a7~0)) (.cse5 (<= 15 ~a8~0)) (.cse1 (or .cse3 (and .cse6 (< ~a8~0 15)))) (.cse4 (<= ~a7~0 0))) (or (and .cse0 (<= ~a21~0 0) .cse1) (and .cse0 .cse2 (<= ~a16~0 4)) (and .cse3 .cse4 .cse2) (and .cse4 .cse5) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 6 ~a16~0) .cse1) (and .cse0 .cse6 .cse5) (and (<= 14 ~a8~0) .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse4 .cse6) (not (<= |old(~a16~0)| 5))))) [2020-07-21 11:24:58,906 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 11:24:58,906 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 11:24:58,906 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (<= ~a8~0 13)) (.cse6 (<= ~a16~0 5))) (let ((.cse2 (= 1 ~a17~0)) (.cse0 (= 1 ~a7~0)) (.cse5 (<= 15 ~a8~0)) (.cse1 (or .cse3 (and .cse6 (< ~a8~0 15)))) (.cse4 (<= ~a7~0 0))) (or (and .cse0 (<= ~a21~0 0) .cse1) (and .cse0 .cse2 (<= ~a16~0 4)) (and .cse3 .cse4 .cse2) (and .cse4 .cse5) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 6 ~a16~0) .cse1) (and .cse0 .cse6 .cse5) (and (<= 14 ~a8~0) .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse4 .cse6) (not (<= |old(~a16~0)| 5))))) [2020-07-21 11:24:58,907 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:24:58,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:24:58 BoogieIcfgContainer [2020-07-21 11:24:58,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:24:58,930 INFO L168 Benchmark]: Toolchain (without parser) took 23581.10 ms. Allocated memory was 145.2 MB in the beginning and 544.7 MB in the end (delta: 399.5 MB). Free memory was 101.9 MB in the beginning and 285.6 MB in the end (delta: -183.7 MB). Peak memory consumption was 423.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:58,931 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 11:24:58,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 806.52 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 101.5 MB in the beginning and 171.7 MB in the end (delta: -70.2 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:58,933 INFO L168 Benchmark]: Boogie Preprocessor took 104.03 ms. Allocated memory is still 205.0 MB. Free memory was 171.7 MB in the beginning and 166.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:58,933 INFO L168 Benchmark]: RCFGBuilder took 1165.99 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 178.2 MB in the end (delta: -11.5 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:58,934 INFO L168 Benchmark]: TraceAbstraction took 21498.20 ms. Allocated memory was 238.6 MB in the beginning and 544.7 MB in the end (delta: 306.2 MB). Free memory was 178.2 MB in the beginning and 285.6 MB in the end (delta: -107.4 MB). Peak memory consumption was 406.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:24:58,938 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 806.52 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 101.5 MB in the beginning and 171.7 MB in the end (delta: -70.2 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.03 ms. Allocated memory is still 205.0 MB. Free memory was 171.7 MB in the beginning and 166.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1165.99 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 178.2 MB in the end (delta: -11.5 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21498.20 ms. Allocated memory was 238.6 MB in the beginning and 544.7 MB in the end (delta: 306.2 MB). Free memory was 178.2 MB in the beginning and 285.6 MB in the end (delta: -107.4 MB). Peak memory consumption was 406.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((1 == a7 && a21 <= 0) && (a8 <= 13 || (a16 <= 5 && a8 < 15))) || ((1 == a7 && 1 == a17) && a16 <= 4)) || ((a8 <= 13 && a7 <= 0) && 1 == a17)) || (a7 <= 0 && 15 <= a8)) || !(\old(a7) <= 0)) || !(1 == \old(a17))) || !(5 <= \old(a16))) || ((1 == a7 && 6 <= a16) && (a8 <= 13 || (a16 <= 5 && a8 < 15)))) || ((1 == a7 && a16 <= 5) && 15 <= a8)) || (14 <= a8 && (a8 <= 13 || (a16 <= 5 && a8 < 15)))) || !(15 <= \old(a8))) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.8s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 578 SDtfs, 3016 SDslu, 302 SDs, 0 SdLazy, 7558 SolverSat, 1248 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2373 GetRequests, 2329 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4851occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 2722 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 215 PreInvPairs, 305 NumberOfFragments, 848 HoareAnnotationTreeSize, 215 FomulaSimplifications, 68034 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 33503 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1689 NumberOfCodeBlocks, 1689 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2348 ConstructedInterpolants, 0 QuantifiedInterpolants, 844662 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4687 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 677/716 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...