/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/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:35:16,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:35:16,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:35:16,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:35:16,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:35:16,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:35:16,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:35:16,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:35:16,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:35:16,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:35:16,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:35:16,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:35:16,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:35:16,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:35:16,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:35:16,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:35:16,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:35:16,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:35:16,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:35:16,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:35:16,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:35:16,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:35:16,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:35:16,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:35:16,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:35:16,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:35:16,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:35:16,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:35:16,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 11:35:17,007 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:35:17,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:35:17,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:35:17,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:35:17,011 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:35:17,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:35:17,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:35:17,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:35:17,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:35:17,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:35:17,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:35:17,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:35:17,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:35:17,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:35:17,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:35:17,013 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:35:17,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:35:17,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:35:17,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:35:17,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:35:17,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:35:17,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:35:17,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:35:17,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:35:17,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:35:17,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:35:17,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:17,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:35:17,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:35:17,017 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 [2020-07-20 11:35:17,290 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:35:17,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:35:17,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:35:17,308 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:35:17,308 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:35:17,309 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-20 11:35:17,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07729ed29/6b22975610c343658ef4cd5f0ab6e2f7/FLAG14ec97395 [2020-07-20 11:35:17,968 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:35:17,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-20 11:35:17,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07729ed29/6b22975610c343658ef4cd5f0ab6e2f7/FLAG14ec97395 [2020-07-20 11:35:18,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07729ed29/6b22975610c343658ef4cd5f0ab6e2f7 [2020-07-20 11:35:18,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:35:18,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:35:18,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:35:18,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:35:18,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:35:18,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:35:18" (1/1) ... [2020-07-20 11:35:18,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461a50ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18, skipping insertion in model container [2020-07-20 11:35:18,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:35:18" (1/1) ... [2020-07-20 11:35:18,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:35:18,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:35:18,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:35:18,832 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:35:18,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:35:18,939 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:35:18,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18 WrapperNode [2020-07-20 11:35:18,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:35:18,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:35:18,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:35:18,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:35:18,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18" (1/1) ... [2020-07-20 11:35:18,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18" (1/1) ... [2020-07-20 11:35:18,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18" (1/1) ... [2020-07-20 11:35:18,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18" (1/1) ... [2020-07-20 11:35:19,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18" (1/1) ... [2020-07-20 11:35:19,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18" (1/1) ... [2020-07-20 11:35:19,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18" (1/1) ... [2020-07-20 11:35:19,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:35:19,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:35:19,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:35:19,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:35:19,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:35:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:35:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:35:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:35:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:35:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:35:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:35:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:35:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:35:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:35:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:35:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:35:20,286 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:35:20,287 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:35:20,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:35:20 BoogieIcfgContainer [2020-07-20 11:35:20,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:35:20,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:35:20,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:35:20,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:35:20,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:35:18" (1/3) ... [2020-07-20 11:35:20,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3973f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:35:20, skipping insertion in model container [2020-07-20 11:35:20,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:35:18" (2/3) ... [2020-07-20 11:35:20,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3973f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:35:20, skipping insertion in model container [2020-07-20 11:35:20,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:35:20" (3/3) ... [2020-07-20 11:35:20,316 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-07-20 11:35:20,329 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:35:20,344 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:35:20,362 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:35:20,403 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:35:20,404 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:35:20,404 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:35:20,404 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:35:20,405 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:35:20,405 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:35:20,405 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:35:20,405 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:35:20,433 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 11:35:20,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-20 11:35:20,446 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:20,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:20,448 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:20,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:20,454 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-07-20 11:35:20,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:20,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451135552] [2020-07-20 11:35:20,465 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 [2020-07-20 11:35:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:20,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:35:20,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:20,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:20,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451135552] [2020-07-20 11:35:20,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:20,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:35:20,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087128176] [2020-07-20 11:35:20,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:35:20,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:20,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:35:20,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:20,747 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 11:35:21,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:21,725 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 11:35:21,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:35:21,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-20 11:35:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:21,744 INFO L225 Difference]: With dead ends: 615 [2020-07-20 11:35:21,744 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 11:35:21,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:21,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 11:35:21,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 11:35:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 11:35:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 11:35:21,825 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 98 [2020-07-20 11:35:21,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:21,826 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 11:35:21,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:35:21,826 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 11:35:21,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-20 11:35:21,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:21,833 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:22,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:22,042 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:22,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:22,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-07-20 11:35:22,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:22,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992647024] [2020-07-20 11:35:22,045 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 [2020-07-20 11:35:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:22,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:35:22,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:22,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:22,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992647024] [2020-07-20 11:35:22,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:22,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:35:22,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019025516] [2020-07-20 11:35:22,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:35:22,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:22,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:35:22,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:35:22,196 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-20 11:35:22,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:22,710 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-20 11:35:22,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:35:22,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-07-20 11:35:22,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:22,717 INFO L225 Difference]: With dead ends: 629 [2020-07-20 11:35:22,718 INFO L226 Difference]: Without dead ends: 318 [2020-07-20 11:35:22,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:35:22,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-20 11:35:22,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-20 11:35:22,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-20 11:35:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-20 11:35:22,770 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 113 [2020-07-20 11:35:22,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:22,771 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-20 11:35:22,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:35:22,771 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-20 11:35:22,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 11:35:22,781 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:22,781 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:22,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:22,983 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:22,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:22,983 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-07-20 11:35:22,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:22,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475223437] [2020-07-20 11:35:22,984 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 [2020-07-20 11:35:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:23,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:35:23,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:23,149 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:23,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:23,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475223437] [2020-07-20 11:35:23,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:23,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:35:23,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473895932] [2020-07-20 11:35:23,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:35:23,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:23,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:35:23,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:35:23,153 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-20 11:35:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:23,958 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-20 11:35:23,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:35:23,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-07-20 11:35:23,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:23,963 INFO L225 Difference]: With dead ends: 923 [2020-07-20 11:35:23,964 INFO L226 Difference]: Without dead ends: 621 [2020-07-20 11:35:23,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:35:23,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-20 11:35:23,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 605. [2020-07-20 11:35:23,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-07-20 11:35:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 764 transitions. [2020-07-20 11:35:23,996 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 764 transitions. Word has length 120 [2020-07-20 11:35:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:23,997 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 764 transitions. [2020-07-20 11:35:23,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:35:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 764 transitions. [2020-07-20 11:35:24,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-20 11:35:24,000 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:24,000 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:24,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:24,215 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:24,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:24,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-07-20 11:35:24,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:24,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263441712] [2020-07-20 11:35:24,218 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 [2020-07-20 11:35:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:24,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 11:35:24,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:24,341 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:24,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:24,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263441712] [2020-07-20 11:35:24,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:24,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:35:24,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769430816] [2020-07-20 11:35:24,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:35:24,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:24,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:35:24,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:35:24,345 INFO L87 Difference]: Start difference. First operand 605 states and 764 transitions. Second operand 5 states. [2020-07-20 11:35:25,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:25,201 INFO L93 Difference]: Finished difference Result 1682 states and 2209 transitions. [2020-07-20 11:35:25,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:35:25,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-20 11:35:25,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:25,208 INFO L225 Difference]: With dead ends: 1682 [2020-07-20 11:35:25,209 INFO L226 Difference]: Without dead ends: 1083 [2020-07-20 11:35:25,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:35:25,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2020-07-20 11:35:25,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1067. [2020-07-20 11:35:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1067 states. [2020-07-20 11:35:25,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1323 transitions. [2020-07-20 11:35:25,260 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1323 transitions. Word has length 124 [2020-07-20 11:35:25,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:25,261 INFO L479 AbstractCegarLoop]: Abstraction has 1067 states and 1323 transitions. [2020-07-20 11:35:25,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:35:25,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1323 transitions. [2020-07-20 11:35:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 11:35:25,265 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:25,265 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:25,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:25,475 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:25,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:25,476 INFO L82 PathProgramCache]: Analyzing trace with hash 741492135, now seen corresponding path program 1 times [2020-07-20 11:35:25,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:25,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229562275] [2020-07-20 11:35:25,477 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 [2020-07-20 11:35:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:25,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:25,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:25,603 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:25,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:35:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:25,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229562275] [2020-07-20 11:35:25,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:35:25,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:35:25,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503147277] [2020-07-20 11:35:25,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:35:25,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:25,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:35:25,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:35:25,718 INFO L87 Difference]: Start difference. First operand 1067 states and 1323 transitions. Second operand 6 states. [2020-07-20 11:35:26,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:26,577 INFO L93 Difference]: Finished difference Result 2290 states and 2871 transitions. [2020-07-20 11:35:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:35:26,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-20 11:35:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:26,591 INFO L225 Difference]: With dead ends: 2290 [2020-07-20 11:35:26,591 INFO L226 Difference]: Without dead ends: 1229 [2020-07-20 11:35:26,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:35:26,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-07-20 11:35:26,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1223. [2020-07-20 11:35:26,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-20 11:35:26,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1481 transitions. [2020-07-20 11:35:26,668 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1481 transitions. Word has length 129 [2020-07-20 11:35:26,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:26,671 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1481 transitions. [2020-07-20 11:35:26,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:35:26,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1481 transitions. [2020-07-20 11:35:26,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 11:35:26,675 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:26,676 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:26,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:26,889 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:26,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:26,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1004016671, now seen corresponding path program 1 times [2020-07-20 11:35:26,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:26,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829751409] [2020-07-20 11:35:26,891 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 [2020-07-20 11:35:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:26,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:26,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:27,041 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:35:27,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:27,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829751409] [2020-07-20 11:35:27,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:27,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:35:27,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416585732] [2020-07-20 11:35:27,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:35:27,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:27,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:35:27,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:27,047 INFO L87 Difference]: Start difference. First operand 1223 states and 1481 transitions. Second operand 3 states. [2020-07-20 11:35:27,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:27,640 INFO L93 Difference]: Finished difference Result 2884 states and 3595 transitions. [2020-07-20 11:35:27,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:35:27,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-20 11:35:27,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:27,648 INFO L225 Difference]: With dead ends: 2884 [2020-07-20 11:35:27,648 INFO L226 Difference]: Without dead ends: 1367 [2020-07-20 11:35:27,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:27,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-07-20 11:35:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1221. [2020-07-20 11:35:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1221 states. [2020-07-20 11:35:27,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1384 transitions. [2020-07-20 11:35:27,692 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1384 transitions. Word has length 133 [2020-07-20 11:35:27,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:27,693 INFO L479 AbstractCegarLoop]: Abstraction has 1221 states and 1384 transitions. [2020-07-20 11:35:27,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:35:27,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1384 transitions. [2020-07-20 11:35:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 11:35:27,697 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:27,697 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:27,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:27,913 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:27,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:27,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1254253877, now seen corresponding path program 1 times [2020-07-20 11:35:27,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:27,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290937551] [2020-07-20 11:35:27,916 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 [2020-07-20 11:35:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:28,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:35:28,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:28,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:35:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:35:28,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290937551] [2020-07-20 11:35:28,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:35:28,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:35:28,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494800746] [2020-07-20 11:35:28,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:35:28,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:28,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:35:28,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:35:28,099 INFO L87 Difference]: Start difference. First operand 1221 states and 1384 transitions. Second operand 6 states. [2020-07-20 11:35:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:29,194 INFO L93 Difference]: Finished difference Result 3338 states and 3778 transitions. [2020-07-20 11:35:29,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:35:29,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-20 11:35:29,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:29,204 INFO L225 Difference]: With dead ends: 3338 [2020-07-20 11:35:29,204 INFO L226 Difference]: Without dead ends: 1969 [2020-07-20 11:35:29,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:35:29,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-07-20 11:35:29,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1966. [2020-07-20 11:35:29,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-07-20 11:35:29,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2159 transitions. [2020-07-20 11:35:29,263 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2159 transitions. Word has length 146 [2020-07-20 11:35:29,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:29,263 INFO L479 AbstractCegarLoop]: Abstraction has 1966 states and 2159 transitions. [2020-07-20 11:35:29,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:35:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2159 transitions. [2020-07-20 11:35:29,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 11:35:29,269 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:29,269 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:29,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:29,483 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:29,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:29,484 INFO L82 PathProgramCache]: Analyzing trace with hash 2108658743, now seen corresponding path program 1 times [2020-07-20 11:35:29,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:29,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877108204] [2020-07-20 11:35:29,485 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 [2020-07-20 11:35:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:29,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:29,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:35:29,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:35:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:35:29,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877108204] [2020-07-20 11:35:29,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:35:29,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:35:29,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527792730] [2020-07-20 11:35:29,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:35:29,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:29,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:35:29,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:35:29,764 INFO L87 Difference]: Start difference. First operand 1966 states and 2159 transitions. Second operand 6 states. [2020-07-20 11:35:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:30,532 INFO L93 Difference]: Finished difference Result 3485 states and 3836 transitions. [2020-07-20 11:35:30,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:35:30,532 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-20 11:35:30,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:30,541 INFO L225 Difference]: With dead ends: 3485 [2020-07-20 11:35:30,541 INFO L226 Difference]: Without dead ends: 1824 [2020-07-20 11:35:30,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:35:30,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2020-07-20 11:35:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1670. [2020-07-20 11:35:30,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2020-07-20 11:35:30,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 1811 transitions. [2020-07-20 11:35:30,588 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 1811 transitions. Word has length 182 [2020-07-20 11:35:30,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:30,588 INFO L479 AbstractCegarLoop]: Abstraction has 1670 states and 1811 transitions. [2020-07-20 11:35:30,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:35:30,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 1811 transitions. [2020-07-20 11:35:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-20 11:35:30,594 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:30,594 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:30,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:30,810 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:30,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:30,810 INFO L82 PathProgramCache]: Analyzing trace with hash 698359958, now seen corresponding path program 1 times [2020-07-20 11:35:30,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:30,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826688924] [2020-07-20 11:35:30,811 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 [2020-07-20 11:35:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:30,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 11:35:30,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:30,982 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-07-20 11:35:30,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:30,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826688924] [2020-07-20 11:35:30,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:30,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:35:30,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047758184] [2020-07-20 11:35:30,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:35:30,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:30,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:35:30,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:30,985 INFO L87 Difference]: Start difference. First operand 1670 states and 1811 transitions. Second operand 3 states. [2020-07-20 11:35:31,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:31,452 INFO L93 Difference]: Finished difference Result 3320 states and 3624 transitions. [2020-07-20 11:35:31,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:35:31,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-07-20 11:35:31,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:31,463 INFO L225 Difference]: With dead ends: 3320 [2020-07-20 11:35:31,463 INFO L226 Difference]: Without dead ends: 2100 [2020-07-20 11:35:31,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:31,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-07-20 11:35:31,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1666. [2020-07-20 11:35:31,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1666 states. [2020-07-20 11:35:31,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 1802 transitions. [2020-07-20 11:35:31,525 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 1802 transitions. Word has length 204 [2020-07-20 11:35:31,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:31,526 INFO L479 AbstractCegarLoop]: Abstraction has 1666 states and 1802 transitions. [2020-07-20 11:35:31,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:35:31,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 1802 transitions. [2020-07-20 11:35:31,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-20 11:35:31,534 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:31,534 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:31,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:31,749 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:31,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:31,750 INFO L82 PathProgramCache]: Analyzing trace with hash 772945334, now seen corresponding path program 1 times [2020-07-20 11:35:31,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:31,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902776814] [2020-07-20 11:35:31,751 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 [2020-07-20 11:35:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:31,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:35:31,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-20 11:35:31,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:31,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902776814] [2020-07-20 11:35:31,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:31,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:35:31,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399662751] [2020-07-20 11:35:31,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:35:31,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:31,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:35:31,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:31,904 INFO L87 Difference]: Start difference. First operand 1666 states and 1802 transitions. Second operand 3 states. [2020-07-20 11:35:32,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:32,394 INFO L93 Difference]: Finished difference Result 3618 states and 3959 transitions. [2020-07-20 11:35:32,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:35:32,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-07-20 11:35:32,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:32,403 INFO L225 Difference]: With dead ends: 3618 [2020-07-20 11:35:32,403 INFO L226 Difference]: Without dead ends: 1790 [2020-07-20 11:35:32,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:32,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2020-07-20 11:35:32,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1790. [2020-07-20 11:35:32,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2020-07-20 11:35:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 1914 transitions. [2020-07-20 11:35:32,472 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 1914 transitions. Word has length 204 [2020-07-20 11:35:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:32,472 INFO L479 AbstractCegarLoop]: Abstraction has 1790 states and 1914 transitions. [2020-07-20 11:35:32,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:35:32,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 1914 transitions. [2020-07-20 11:35:32,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-20 11:35:32,478 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:35:32,478 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:35:32,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:32,692 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:35:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:35:32,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-07-20 11:35:32,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:35:32,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799791484] [2020-07-20 11:35:32,694 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 [2020-07-20 11:35:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:35:32,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:35:32,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:35:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-20 11:35:32,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:35:32,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799791484] [2020-07-20 11:35:32,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:35:32,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:35:32,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852858280] [2020-07-20 11:35:32,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:35:32,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:35:32,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:35:32,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:32,846 INFO L87 Difference]: Start difference. First operand 1790 states and 1914 transitions. Second operand 3 states. [2020-07-20 11:35:33,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:35:33,264 INFO L93 Difference]: Finished difference Result 3420 states and 3666 transitions. [2020-07-20 11:35:33,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:35:33,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-20 11:35:33,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:35:33,267 INFO L225 Difference]: With dead ends: 3420 [2020-07-20 11:35:33,267 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:35:33,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:35:33,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:35:33,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:35:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:35:33,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:35:33,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-07-20 11:35:33,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:35:33,275 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:35:33,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:35:33,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:35:33,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:35:33,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:35:33,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:35:34,540 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 74 [2020-07-20 11:35:34,869 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-07-20 11:35:35,153 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-07-20 11:35:35,157 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:35:35,159 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 11:35:35,159 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:35:35,159 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,159 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,159 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,159 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,160 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,160 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 11:35:35,160 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 11:35:35,160 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 11:35:35,160 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 11:35:35,160 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 11:35:35,161 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 11:35:35,161 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 11:35:35,161 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 11:35:35,161 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 11:35:35,161 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 11:35:35,161 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:35:35,161 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:35:35,161 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 11:35:35,162 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,162 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,162 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,162 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,162 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 11:35:35,162 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,162 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 11:35:35,163 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 11:35:35,163 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 11:35:35,163 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 11:35:35,163 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 11:35:35,164 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 11:35:35,164 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 11:35:35,164 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:35:35,164 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:35:35,165 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 11:35:35,165 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 11:35:35,165 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 11:35:35,165 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:35:35,165 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:35:35,165 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 11:35:35,165 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,167 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,167 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,167 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,167 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,168 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-07-20 11:35:35,168 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:35:35,168 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 11:35:35,168 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:35:35,168 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 11:35:35,168 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 11:35:35,168 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 11:35:35,169 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 11:35:35,169 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 11:35:35,169 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 11:35:35,169 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 11:35:35,169 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 11:35:35,169 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,169 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,169 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,170 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,170 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,170 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 11:35:35,170 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 11:35:35,170 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 11:35:35,170 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 11:35:35,170 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 11:35:35,170 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 11:35:35,170 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 11:35:35,171 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 11:35:35,171 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 11:35:35,171 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 11:35:35,171 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 11:35:35,172 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 11:35:35,172 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 11:35:35,173 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,173 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,173 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,173 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,173 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,173 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 11:35:35,174 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 11:35:35,174 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 11:35:35,174 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 11:35:35,174 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 11:35:35,174 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 11:35:35,174 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 11:35:35,174 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 11:35:35,174 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 11:35:35,175 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 11:35:35,175 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 11:35:35,175 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 11:35:35,175 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 11:35:35,175 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:35:35,175 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 11:35:35,176 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:35:35,176 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,176 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,176 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,176 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,176 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 11:35:35,176 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,176 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:35:35,176 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,177 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:35:35,177 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:35:35,178 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:35:35,178 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,178 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,178 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 11:35:35,178 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 11:35:35,178 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 11:35:35,178 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 11:35:35,179 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 11:35:35,179 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 11:35:35,179 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 11:35:35,179 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 11:35:35,179 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 11:35:35,179 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 11:35:35,179 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 11:35:35,180 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,180 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,180 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,180 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,180 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,180 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,180 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 11:35:35,180 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 11:35:35,181 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 11:35:35,181 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 11:35:35,181 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 11:35:35,181 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 11:35:35,181 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 11:35:35,181 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 11:35:35,181 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 11:35:35,181 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 11:35:35,181 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 11:35:35,182 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,182 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,182 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,182 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,182 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,182 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,182 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 11:35:35,182 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 11:35:35,182 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 11:35:35,183 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 11:35:35,183 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 11:35:35,183 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 11:35:35,183 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 11:35:35,183 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 11:35:35,183 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 11:35:35,183 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 11:35:35,183 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 11:35:35,183 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 11:35:35,184 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 11:35:35,184 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 11:35:35,184 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,184 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,184 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,185 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse9 (= 1 |old(~a11~0)|)) (.cse11 (= 1 ~a11~0))) (let ((.cse14 (not (<= 9 |old(~a28~0)|))) (.cse12 (<= 9 ~a28~0)) (.cse17 (not (<= |old(~a17~0)| 7))) (.cse18 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a25~0 |old(~a25~0)|)) (.cse16 (not (= 1 |old(~a25~0)|))) (.cse3 (<= ~a28~0 |old(~a28~0)|)) (.cse4 (<= ~a17~0 8)) (.cse5 (<= 8 ~a17~0)) (.cse10 (not .cse11)) (.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse19 (= 1 ~a25~0)) (.cse0 (not (<= |old(~a28~0)| 7))) (.cse1 (not (<= 8 |old(~a17~0)|))) (.cse15 (not .cse9)) (.cse13 (not (= 1 |old(~a19~0)|))) (.cse8 (not (<= |old(~a28~0)| 10))) (.cse21 (not (<= 10 |old(~a28~0)|))) (.cse20 (<= 10 ~a28~0)) (.cse2 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7)) (or .cse8 .cse9 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse10 .cse6 .cse7)) (or (and .cse11 .cse3 .cse4 .cse5 .cse6 .cse12 .cse7) .cse13 .cse8 .cse14 .cse1 .cse2 .cse15) (or .cse8 .cse14 .cse16 .cse17 (and .cse18 .cse3 .cse6 .cse12 .cse19)) (or .cse8 (and .cse20 .cse10) .cse9 .cse16 .cse21 .cse2) (or .cse13 (and .cse3 .cse4 .cse5 .cse6 .cse19) .cse8 .cse1 .cse16 .cse2) (or .cse8 .cse16 .cse17 (and .cse18 .cse11 .cse3 .cse6 .cse19) .cse15) (or .cse8 .cse14 .cse9 .cse1 .cse2 .cse12) (or .cse8 .cse17 .cse21 (and .cse18 (<= ~a28~0 10) .cse20 .cse6 .cse7) .cse2) (or .cse13 .cse9 .cse1 .cse16 .cse21 (and .cse3 .cse4 .cse5 .cse20 .cse10 .cse6 .cse19) .cse2) (or .cse11 .cse0 .cse1 .cse2 .cse15) (or .cse13 .cse8 .cse21 .cse20 .cse2)))) [2020-07-20 11:35:35,185 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,185 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,186 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,186 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 11:35:35,186 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 11:35:35,186 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 11:35:35,186 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 11:35:35,186 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 11:35:35,186 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 11:35:35,186 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 11:35:35,186 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 11:35:35,187 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 11:35:35,187 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 11:35:35,187 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 11:35:35,187 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 11:35:35,187 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 11:35:35,187 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,187 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,187 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,187 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,188 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,188 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,188 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 11:35:35,188 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 11:35:35,188 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 11:35:35,188 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 11:35:35,188 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 11:35:35,188 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 11:35:35,189 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 11:35:35,189 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 11:35:35,189 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 11:35:35,189 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 11:35:35,189 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 11:35:35,189 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:35:35,189 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:35:35,189 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 11:35:35,189 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 11:35:35,190 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 11:35:35,190 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,190 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,190 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,190 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,190 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:35:35,190 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 11:35:35,190 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 11:35:35,190 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 11:35:35,191 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 11:35:35,191 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 11:35:35,191 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 11:35:35,191 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 11:35:35,191 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 11:35:35,191 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 11:35:35,191 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 11:35:35,191 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 11:35:35,192 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:35:35,192 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 11:35:35,192 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:35:35,192 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 11:35:35,192 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:35:35,192 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:35:35,192 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 11:35:35,192 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 11:35:35,192 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:35:35,193 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (not (= 1 ~a11~0)) (<= ~a28~0 7)) [2020-07-20 11:35:35,193 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:35:35,193 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:35:35,193 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (= 1 |old(~a11~0)|) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (not (= 1 ~a11~0)) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|))) [2020-07-20 11:35:35,193 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (= 1 ~a11~0))) (let ((.cse9 (<= 10 ~a28~0)) (.cse5 (not .cse11)) (.cse3 (<= ~a28~0 7)) (.cse10 (<= 9 ~a28~0)) (.cse8 (<= ~a17~0 7)) (.cse4 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse1 (<= 8 ~a17~0)) (.cse7 (<= ~a28~0 10)) (.cse2 (not (= 1 |old(~a25~0)|))) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2 .cse5 .cse6) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse7 .cse2 .cse5) (and .cse2 .cse7 .cse8 .cse9) (not (<= 8 |old(~a17~0)|)) (and .cse4 .cse0 .cse7 .cse9) (and .cse4 .cse0 .cse1 .cse7 .cse2 .cse10) (and .cse4 .cse0 .cse1 .cse5 .cse3 (= ~a25~0 |old(~a25~0)|)) (= 1 |old(~a11~0)|) (and .cse7 .cse2 .cse8 .cse10 .cse6) (not (<= |old(~a17~0)| 8)) (and .cse11 .cse7 .cse2 .cse8 .cse6) (and .cse4 .cse0 .cse1 .cse7 .cse2 .cse6)))) [2020-07-20 11:35:35,194 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:35:35,194 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:35:35,194 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (= 1 ~a11~0))) (let ((.cse9 (<= 10 ~a28~0)) (.cse5 (not .cse11)) (.cse3 (<= ~a28~0 7)) (.cse10 (<= 9 ~a28~0)) (.cse8 (<= ~a17~0 7)) (.cse4 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse1 (<= 8 ~a17~0)) (.cse7 (<= ~a28~0 10)) (.cse2 (not (= 1 |old(~a25~0)|))) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2 .cse5 .cse6) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse7 .cse2 .cse5) (and .cse2 .cse7 .cse8 .cse9) (not (<= 8 |old(~a17~0)|)) (and .cse4 .cse0 .cse7 .cse9) (and .cse4 .cse0 .cse1 .cse7 .cse2 .cse10) (and .cse4 .cse0 .cse1 .cse5 .cse3 (= ~a25~0 |old(~a25~0)|)) (= 1 |old(~a11~0)|) (and .cse7 .cse2 .cse8 .cse10 .cse6) (not (<= |old(~a17~0)| 8)) (and .cse11 .cse7 .cse2 .cse8 .cse6) (and .cse4 .cse0 .cse1 .cse7 .cse2 .cse6)))) [2020-07-20 11:35:35,194 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 11:35:35,194 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 11:35:35,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:35:35 BoogieIcfgContainer [2020-07-20 11:35:35,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:35:35,248 INFO L168 Benchmark]: Toolchain (without parser) took 16998.25 ms. Allocated memory was 139.5 MB in the beginning and 468.2 MB in the end (delta: 328.7 MB). Free memory was 102.2 MB in the beginning and 258.6 MB in the end (delta: -156.3 MB). Peak memory consumption was 284.7 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:35,249 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 11:35:35,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.09 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 101.8 MB in the beginning and 172.6 MB in the end (delta: -70.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:35,251 INFO L168 Benchmark]: Boogie Preprocessor took 98.59 ms. Allocated memory is still 206.0 MB. Free memory was 172.6 MB in the beginning and 167.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:35,253 INFO L168 Benchmark]: RCFGBuilder took 1263.54 ms. Allocated memory was 206.0 MB in the beginning and 240.1 MB in the end (delta: 34.1 MB). Free memory was 167.8 MB in the beginning and 183.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:35,254 INFO L168 Benchmark]: TraceAbstraction took 14940.91 ms. Allocated memory was 240.1 MB in the beginning and 468.2 MB in the end (delta: 228.1 MB). Free memory was 183.2 MB in the beginning and 258.6 MB in the end (delta: -75.4 MB). Peak memory consumption was 264.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:35:35,262 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.09 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 101.8 MB in the beginning and 172.6 MB in the end (delta: -70.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.59 ms. Allocated memory is still 206.0 MB. Free memory was 172.6 MB in the beginning and 167.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1263.54 ms. Allocated memory was 206.0 MB in the beginning and 240.1 MB in the end (delta: 34.1 MB). Free memory was 167.8 MB in the beginning and 183.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14940.91 ms. Allocated memory was 240.1 MB in the beginning and 468.2 MB in the end (delta: 228.1 MB). Free memory was 183.2 MB in the beginning and 258.6 MB in the end (delta: -75.4 MB). Peak memory consumption was 264.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a19)) || (((a17 <= 8 && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && !(1 == \old(a25))) && !(1 == a11)) && 1 == a25)) || !(\old(a28) <= 7)) || ((((a17 <= 8 && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && !(1 == a11))) || (((!(1 == \old(a25)) && a28 <= 10) && a17 <= 7) && 10 <= a28)) || !(8 <= \old(a17))) || (((1 == a19 && a17 <= 8) && a28 <= 10) && 10 <= a28)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && 9 <= a28)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && !(1 == a11)) && a28 <= 7) && a25 == \old(a25))) || 1 == \old(a11)) || ((((a28 <= 10 && !(1 == \old(a25))) && a17 <= 7) && 9 <= a28) && 1 == a25)) || !(\old(a17) <= 8)) || ((((1 == a11 && a28 <= 10) && !(1 == \old(a25))) && a17 <= 7) && 1 == a25)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.0s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 958 SDtfs, 3435 SDslu, 426 SDs, 0 SdLazy, 5678 SolverSat, 858 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2162 GetRequests, 2116 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1966occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 785 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 95 PreInvPairs, 135 NumberOfFragments, 846 HoareAnnotationTreeSize, 95 FomulaSimplifications, 3624 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1416 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1693 NumberOfCodeBlocks, 1693 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2136 ConstructedInterpolants, 0 QuantifiedInterpolants, 624460 SizeOfPredicates, 11 NumberOfNonLiveVariables, 4412 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 1077/1089 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...